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"source": [
"<img src=\"https://raw.githubusercontent.com/UXARRAY/uxarray/main/docs/_static/images/logos/uxarray_logo_h_dark.svg\"\n",
" width=\"30%\"\n",
" alt=\"UXarray logo\"\n",
" align=\"right\"\n",
"/>\n",
"\n",
"# UXarray Dataset & DataArray\n",
"\n",
"### In this section, you'll learn:\n",
"\n",
"* What are `UxDataset` and `UxDataArray`?\n",
"* How do they relate to their Xarray counterparts?\n",
"\n",
"## Related Documentation\n",
"\n",
"* [UXarray Data Structures Documentation](https://uxarray.readthedocs.io/en/latest/user-guide/data-structures.html)\n",
"\n",
"### Prerequisites\n",
"\n",
"| Concepts | Importance | Notes |\n",
"| --- | --- | --- |\n",
"| [Introduction to Xarray](https://foundations.projectpythia.org/core/xarray/xarray-intro.html) | Necessary | |\n",
"\n",
"**Time to learn**: 15 minutes\n",
"\n",
"-----\n",
"\n"
]
},
{
"cell_type": "markdown",
"id": "8b0f60ea-73c4-4f6f-849f-fb0642fcb78c",
"metadata": {},
"source": [
"## Overview"
]
},
{
"cell_type": "markdown",
"id": "e6539b10-cca3-4c93-8368-528b157b26a1",
"metadata": {},
"source": [
"As stated before in this chapter, ``UxDataset`` and ``UxDataArray`` are the UXarray classes that are inherited from Xarray counterparts and enable to perform analysis and visualization on unstructured mesh datasets. \n",
"\n",
"An instance of ``UxDataset`` can be thought of as a collection of data variables, i.e. ``UxDataArray`` objects, that reside on a particular unstructured grid as defined in the class property (``UxDataset.uxgrid`` or ``UxDataArray.uxgrid``).\n",
"\n",
"In other words, each of these data structures is linked to its own ``Grid`` object through ``uxgrid`` to enable grid-awareness, and for ``UxDataArray``s that belong to a specific ``UxDataset``, ``uxgrid`` of all of them points to the same ``Grid`` object. "
]
},
{
"cell_type": "markdown",
"id": "3a6e4836-6c49-4598-98c0-9750923e84c0",
"metadata": {},
"source": [
"## Unstructured Mesh Datasets"
]
},
{
"cell_type": "markdown",
"id": "20746384-c123-4282-8db2-d75e47f6cb25",
"metadata": {},
"source": [
"Since most of the unstructured grid datasets contain a single grid definition file along with one or more data files, UXarray's core API allows to open such datasets using those files. \n",
"\n",
"Let the following dataset have a single data file along with the grid definition: "
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "409a3239-e51b-4353-8418-29dc1693a4dd",
"metadata": {
"ExecuteTime": {
"end_time": "2024-12-18T19:26:50.031729Z",
"start_time": "2024-12-18T19:26:50.029554Z"
}
},
"outputs": [],
"source": [
"grid_path = \"../../meshfiles/outCSne30.grid.ug\"\n",
"data_path = \"../../meshfiles/outCSne30.data.nc\""
]
},
{
"cell_type": "markdown",
"id": "0cbfc5ef-d38e-42dd-a582-4c4259fe64ac",
"metadata": {},
"source": [
"## Loading a `UxDataset`"
]
},
{
"cell_type": "markdown",
"id": "29e59517-526f-434e-8647-bb8301118950",
"metadata": {},
"source": [
"To open a grid file with a **single** data file, the `uxarray.open_dataset()` method can be used. UXarray also provides `uxarray.open_mfdataset()` for opening multiple data files at once (refer to the [UXarray Opening Multipled Data Files Documentation](https://uxarray.readthedocs.io/en/latest/user-guide/data-structures.html#opening-multiple-data-files) for that), but this notebook will cover only the former."
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "d5560f80-09f1-4c5f-b542-0c7c52ba729b",
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"outputs": [
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"</style><pre class='xr-text-repr-fallback'><xarray.UxDataset> Size: 43kB\n",
"Dimensions: (n_face: 5400)\n",
"Dimensions without coordinates: n_face\n",
"Data variables:\n",
" psi (n_face) float64 43kB ...</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.UxDataset</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-8f57a585-7543-4264-8a66-6cf6ae36eeee' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-8f57a585-7543-4264-8a66-6cf6ae36eeee' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-2c6801ea-7a0a-4381-90a8-a309eb71fb3c' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-2c6801ea-7a0a-4381-90a8-a309eb71fb3c' class='xr-section-summary' title='Expand/collapse section'>Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-d3fea740-c390-459e-8e07-99ea452fcbbf' class='xr-section-summary-in' type='checkbox' checked><label for='section-d3fea740-c390-459e-8e07-99ea452fcbbf' class='xr-section-summary' >Data variables: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>psi</span></div><div class='xr-var-dims'>(n_face)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-b576c889-66c1-4ce3-b476-65d0e0fb17c3' class='xr-var-attrs-in' type='checkbox' disabled><label for='attrs-b576c889-66c1-4ce3-b476-65d0e0fb17c3' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-f4617812-95c0-475e-b5f6-4f1a3aeddd34' class='xr-var-data-in' type='checkbox'><label for='data-f4617812-95c0-475e-b5f6-4f1a3aeddd34' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'></dl></div><div class='xr-var-data'><pre>[5400 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-8dc12134-a906-4a80-8b0f-b874f26cbfb7' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-8dc12134-a906-4a80-8b0f-b874f26cbfb7' class='xr-section-summary' title='Expand/collapse section'>Indexes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-1b49766a-11ed-4e0f-82b1-40045cd2186c' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-1b49766a-11ed-4e0f-82b1-40045cd2186c' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div><details><summary>Show Grid Information</summary><div><svg style=\"position: absolute; width: 0; height: 0; overflow: hidden\">\n",
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"\n",
".xr-index-preview {\n",
" grid-column: 2 / 5;\n",
" color: var(--xr-font-color2);\n",
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"\n",
".xr-var-name,\n",
".xr-var-dims,\n",
".xr-var-dtype,\n",
".xr-preview,\n",
".xr-attrs dt {\n",
" white-space: nowrap;\n",
" overflow: hidden;\n",
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" padding-right: 10px;\n",
"}\n",
"\n",
".xr-var-name:hover,\n",
".xr-var-dims:hover,\n",
".xr-var-dtype:hover,\n",
".xr-attrs dt:hover {\n",
" overflow: visible;\n",
" width: auto;\n",
" z-index: 1;\n",
"}\n",
"\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" display: none;\n",
" background-color: var(--xr-background-color) !important;\n",
" padding-bottom: 5px !important;\n",
"}\n",
"\n",
".xr-var-attrs-in:checked ~ .xr-var-attrs,\n",
".xr-var-data-in:checked ~ .xr-var-data,\n",
".xr-index-data-in:checked ~ .xr-index-data {\n",
" display: block;\n",
"}\n",
"\n",
".xr-var-data > table {\n",
" float: right;\n",
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"\n",
".xr-var-name span,\n",
".xr-var-data,\n",
".xr-index-name div,\n",
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" padding-left: 25px !important;\n",
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"\n",
".xr-attrs,\n",
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".xr-var-data,\n",
".xr-index-data {\n",
" grid-column: 1 / -1;\n",
"}\n",
"\n",
"dl.xr-attrs {\n",
" padding: 0;\n",
" margin: 0;\n",
" display: grid;\n",
" grid-template-columns: 125px auto;\n",
"}\n",
"\n",
".xr-attrs dt,\n",
".xr-attrs dd {\n",
" padding: 0;\n",
" margin: 0;\n",
" float: left;\n",
" padding-right: 10px;\n",
" width: auto;\n",
"}\n",
"\n",
".xr-attrs dt {\n",
" font-weight: normal;\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-attrs dt:hover span {\n",
" display: inline-block;\n",
" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-attrs dd {\n",
" grid-column: 2;\n",
" white-space: pre-wrap;\n",
" word-break: break-all;\n",
"}\n",
"\n",
".xr-icon-database,\n",
".xr-icon-file-text2,\n",
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" display: inline-block;\n",
" vertical-align: middle;\n",
" width: 1em;\n",
" height: 1.5em !important;\n",
" stroke-width: 0;\n",
" stroke: currentColor;\n",
" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)\n",
"</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.UxDataset.uxgrid</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-107e2de5-959a-4635-b17c-245ad7340405' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-107e2de5-959a-4635-b17c-245ad7340405' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li><li><span>n_max_face_nodes</span>: 4</li><li><span>n_node</span>: 5402</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-6a7c46f7-3f10-4dda-bcda-a156c1fbf801' class='xr-section-summary-in' type='checkbox' ><label for='section-6a7c46f7-3f10-4dda-bcda-a156c1fbf801' class='xr-section-summary' >Spherical Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>node_lon</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-45.0 45.0 135.0 ... 138.0 135.0</div><input id='attrs-4f62243c-8819-43b0-80d8-90e8c0210254' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-4f62243c-8819-43b0-80d8-90e8c0210254' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-8e189c77-8f81-4553-8f3c-2007f65bb215' class='xr-var-data-in' type='checkbox'><label for='data-8e189c77-8f81-4553-8f3c-2007f65bb215' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>longitude</dd><dt><span>long_name :</span></dt><dd>longitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-45. , 45. , 135. , ..., 141.09968961,\n",
" 138.03317102, 135. ])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span>node_lat</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-b73d4c06-e8dd-4045-becf-d65d0391e28c' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-b73d4c06-e8dd-4045-becf-d65d0391e28c' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-48989cc5-71ca-4982-bb37-f37dd5d9fefe' class='xr-var-data-in' type='checkbox'><label for='data-48989cc5-71ca-4982-bb37-f37dd5d9fefe' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>latitude</dd><dt><span>long_name :</span></dt><dd>latitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>[5402 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-7aa6ec07-0630-4b60-8184-9016a0f4639b' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-7aa6ec07-0630-4b60-8184-9016a0f4639b' class='xr-section-summary' title='Expand/collapse section'>Cartesian Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-60929cfb-f82b-41be-8340-965f37529160' class='xr-section-summary-in' type='checkbox' ><label for='section-60929cfb-f82b-41be-8340-965f37529160' class='xr-section-summary' >Connectivity: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>face_node_connectivity</span></div><div class='xr-var-dims'>(n_face, n_max_face_nodes)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>0 8 356 124 8 ... 5401 297 6 298</div><input id='attrs-10b791cb-bbb5-44bd-8514-d65f0df7c670' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-10b791cb-bbb5-44bd-8514-d65f0df7c670' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-ad509b67-8161-469c-806b-ed9ddbc273ee' class='xr-var-data-in' type='checkbox'><label for='data-ad509b67-8161-469c-806b-ed9ddbc273ee' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>face_node_connectivity</dd><dt><span>start_index :</span></dt><dd>0</dd><dt><span>_FillValue :</span></dt><dd>-9223372036854775808</dd></dl></div><div class='xr-var-data'><pre>array([[ 0, 8, 356, 124],\n",
" [ 8, 9, 357, 356],\n",
" [ 9, 10, 358, 357],\n",
" ...,\n",
" [5399, 5400, 299, 300],\n",
" [5400, 5401, 298, 299],\n",
" [5401, 297, 6, 298]])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-94beaefb-1168-4404-93a7-7e4f13c76e9b' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-94beaefb-1168-4404-93a7-7e4f13c76e9b' class='xr-section-summary' title='Expand/collapse section'>Descriptors: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-4b07c6a4-5d99-4435-88b3-923e54e5bbc6' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-4b07c6a4-5d99-4435-88b3-923e54e5bbc6' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div></details></div></div>"
],
"text/plain": [
"<xarray.UxDataset> Size: 43kB\n",
"Dimensions: (n_face: 5400)\n",
"Dimensions without coordinates: n_face\n",
"Data variables:\n",
" psi (n_face) float64 43kB ..."
]
},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"import uxarray as ux\n",
"\n",
"uxds = ux.open_dataset(grid_path, data_path)\n",
"uxds"
]
},
{
"cell_type": "markdown",
"id": "aa440c7e-0cfd-4ff1-b72f-a694dddd8a25",
"metadata": {},
"source": [
"### Grid Accessor\n",
"\n",
"Let us first see the ``Grid``object this dataset object is linked to:"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "e08df73d-f3e1-463d-94f3-a98f4e8aaeff",
"metadata": {},
"outputs": [
{
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"\n",
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"\n",
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" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
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"\n",
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"\n",
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"</style><pre class='xr-text-repr-fallback'><uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)\n",
"</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.Grid</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-b5f66eb9-d916-4e4d-8619-8a3e050be045' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-b5f66eb9-d916-4e4d-8619-8a3e050be045' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li><li><span>n_max_face_nodes</span>: 4</li><li><span>n_node</span>: 5402</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-1ce0d0e9-d342-4d4f-b247-80d740a1e584' class='xr-section-summary-in' type='checkbox' checked><label for='section-1ce0d0e9-d342-4d4f-b247-80d740a1e584' class='xr-section-summary' >Spherical Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>node_lon</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-45.0 45.0 135.0 ... 138.0 135.0</div><input id='attrs-7354fdb0-626f-40da-ac00-d84ebb6df1a7' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-7354fdb0-626f-40da-ac00-d84ebb6df1a7' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-36f9226c-54a0-4efc-a98a-277f249478b2' class='xr-var-data-in' type='checkbox'><label for='data-36f9226c-54a0-4efc-a98a-277f249478b2' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>longitude</dd><dt><span>long_name :</span></dt><dd>longitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-45. , 45. , 135. , ..., 141.09968961,\n",
" 138.03317102, 135. ])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span>node_lat</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-2336b66c-bb9e-46c0-b8a5-bacd87b5364f' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-2336b66c-bb9e-46c0-b8a5-bacd87b5364f' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-5b1b61cd-9a66-41a1-9870-4f924636cb92' class='xr-var-data-in' type='checkbox'><label for='data-5b1b61cd-9a66-41a1-9870-4f924636cb92' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>latitude</dd><dt><span>long_name :</span></dt><dd>latitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>[5402 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-82585aa0-2941-4c9e-b817-ed2376e0ed91' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-82585aa0-2941-4c9e-b817-ed2376e0ed91' class='xr-section-summary' title='Expand/collapse section'>Cartesian Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-3bf66d2a-1e36-4e73-a8eb-8c905ce83227' class='xr-section-summary-in' type='checkbox' checked><label for='section-3bf66d2a-1e36-4e73-a8eb-8c905ce83227' class='xr-section-summary' >Connectivity: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>face_node_connectivity</span></div><div class='xr-var-dims'>(n_face, n_max_face_nodes)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>0 8 356 124 8 ... 5401 297 6 298</div><input id='attrs-3794977f-37d8-423c-8936-8c039c501e6b' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-3794977f-37d8-423c-8936-8c039c501e6b' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-be810c86-a5d9-4bfa-8d08-201294b4a234' class='xr-var-data-in' type='checkbox'><label for='data-be810c86-a5d9-4bfa-8d08-201294b4a234' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>face_node_connectivity</dd><dt><span>start_index :</span></dt><dd>0</dd><dt><span>_FillValue :</span></dt><dd>-9223372036854775808</dd></dl></div><div class='xr-var-data'><pre>array([[ 0, 8, 356, 124],\n",
" [ 8, 9, 357, 356],\n",
" [ 9, 10, 358, 357],\n",
" ...,\n",
" [5399, 5400, 299, 300],\n",
" [5400, 5401, 298, 299],\n",
" [5401, 297, 6, 298]])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-285dfbc8-b417-42cb-9e88-63c7d12cb290' class='xr-section-summary-in' type='checkbox' checked><label for='section-285dfbc8-b417-42cb-9e88-63c7d12cb290' class='xr-section-summary' >Descriptors: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>n_nodes_per_face</span></div><div class='xr-var-dims'>(n_face)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>4 4 4 4 4 4 4 4 ... 4 4 4 4 4 4 4 4</div><input id='attrs-dd0198d2-bf2e-47fd-9209-735d239e9d7a' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-dd0198d2-bf2e-47fd-9209-735d239e9d7a' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-400aac2d-d66d-412a-b4cf-130806ea867d' class='xr-var-data-in' type='checkbox'><label for='data-400aac2d-d66d-412a-b4cf-130806ea867d' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>n_nodes_per_face</dd><dt><span>long name :</span></dt><dd>Number of nodes per face</dd></dl></div><div class='xr-var-data'><pre>array([4, 4, 4, ..., 4, 4, 4])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-59ff8b03-7c0c-43bd-a9e0-14a326da7ebd' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-59ff8b03-7c0c-43bd-a9e0-14a326da7ebd' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div>"
],
"text/plain": [
"<uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"uxds.uxgrid"
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},
{
"cell_type": "markdown",
"id": "a15b2d67-f30d-4c8f-b5c5-7f6ae82395fa",
"metadata": {},
"source": [
"## Accessing Data Variables (``UxDataArray``)\n",
"\n",
"Similar to the Xarray conterparts, an ``UxDataset`` can have multiple ``UxDataArray``s in it, which are for different data variables. A variable of interest can be accessed in the same way Xarray provides:"
]
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{
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" background-color: var(--xr-background-color-row-odd);\n",
"}\n",
"\n",
".xr-var-name {\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-var-dims {\n",
" grid-column: 2;\n",
"}\n",
"\n",
".xr-var-dtype {\n",
" grid-column: 3;\n",
" text-align: right;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-preview {\n",
" grid-column: 4;\n",
"}\n",
"\n",
".xr-index-preview {\n",
" grid-column: 2 / 5;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-name,\n",
".xr-var-dims,\n",
".xr-var-dtype,\n",
".xr-preview,\n",
".xr-attrs dt {\n",
" white-space: nowrap;\n",
" overflow: hidden;\n",
" text-overflow: ellipsis;\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-var-name:hover,\n",
".xr-var-dims:hover,\n",
".xr-var-dtype:hover,\n",
".xr-attrs dt:hover {\n",
" overflow: visible;\n",
" width: auto;\n",
" z-index: 1;\n",
"}\n",
"\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" display: none;\n",
" background-color: var(--xr-background-color) !important;\n",
" padding-bottom: 5px !important;\n",
"}\n",
"\n",
".xr-var-attrs-in:checked ~ .xr-var-attrs,\n",
".xr-var-data-in:checked ~ .xr-var-data,\n",
".xr-index-data-in:checked ~ .xr-index-data {\n",
" display: block;\n",
"}\n",
"\n",
".xr-var-data > table {\n",
" float: right;\n",
"}\n",
"\n",
".xr-var-name span,\n",
".xr-var-data,\n",
".xr-index-name div,\n",
".xr-index-data,\n",
".xr-attrs {\n",
" padding-left: 25px !important;\n",
"}\n",
"\n",
".xr-attrs,\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" grid-column: 1 / -1;\n",
"}\n",
"\n",
"dl.xr-attrs {\n",
" padding: 0;\n",
" margin: 0;\n",
" display: grid;\n",
" grid-template-columns: 125px auto;\n",
"}\n",
"\n",
".xr-attrs dt,\n",
".xr-attrs dd {\n",
" padding: 0;\n",
" margin: 0;\n",
" float: left;\n",
" padding-right: 10px;\n",
" width: auto;\n",
"}\n",
"\n",
".xr-attrs dt {\n",
" font-weight: normal;\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-attrs dt:hover span {\n",
" display: inline-block;\n",
" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-attrs dd {\n",
" grid-column: 2;\n",
" white-space: pre-wrap;\n",
" word-break: break-all;\n",
"}\n",
"\n",
".xr-icon-database,\n",
".xr-icon-file-text2,\n",
".xr-no-icon {\n",
" display: inline-block;\n",
" vertical-align: middle;\n",
" width: 1em;\n",
" height: 1.5em !important;\n",
" stroke-width: 0;\n",
" stroke: currentColor;\n",
" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><xarray.UxDataArray 'psi' (n_face: 5400)> Size: 43kB\n",
"[5400 values with dtype=float64]\n",
"Dimensions without coordinates: n_face</pre><div class='xr-wrap' style='display:none'><div><svg style=\"position: absolute; width: 0; height: 0; overflow: hidden\">\n",
"<defs>\n",
"<symbol id=\"icon-database\" viewBox=\"0 0 32 32\">\n",
"<path d=\"M16 0c-8.837 0-16 2.239-16 5v4c0 2.761 7.163 5 16 5s16-2.239 16-5v-4c0-2.761-7.163-5-16-5z\"></path>\n",
"<path d=\"M16 17c-8.837 0-16-2.239-16-5v6c0 2.761 7.163 5 16 5s16-2.239 16-5v-6c0 2.761-7.163 5-16 5z\"></path>\n",
"<path d=\"M16 26c-8.837 0-16-2.239-16-5v6c0 2.761 7.163 5 16 5s16-2.239 16-5v-6c0 2.761-7.163 5-16 5z\"></path>\n",
"</symbol>\n",
"<symbol id=\"icon-file-text2\" viewBox=\"0 0 32 32\">\n",
"<path d=\"M28.681 7.159c-0.694-0.947-1.662-2.053-2.724-3.116s-2.169-2.030-3.116-2.724c-1.612-1.182-2.393-1.319-2.841-1.319h-15.5c-1.378 0-2.5 1.121-2.5 2.5v27c0 1.378 1.122 2.5 2.5 2.5h23c1.378 0 2.5-1.122 2.5-2.5v-19.5c0-0.448-0.137-1.23-1.319-2.841zM24.543 5.457c0.959 0.959 1.712 1.825 2.268 2.543h-4.811v-4.811c0.718 0.556 1.584 1.309 2.543 2.268zM28 29.5c0 0.271-0.229 0.5-0.5 0.5h-23c-0.271 0-0.5-0.229-0.5-0.5v-27c0-0.271 0.229-0.5 0.5-0.5 0 0 15.499-0 15.5 0v7c0 0.552 0.448 1 1 1h7v19.5z\"></path>\n",
"<path d=\"M23 26h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"<path d=\"M23 22h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"<path d=\"M23 18h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"</symbol>\n",
"</defs>\n",
"</svg>\n",
"<style>/* CSS stylesheet for displaying xarray objects in jupyterlab.\n",
" *\n",
" */\n",
"\n",
":root {\n",
" --xr-font-color0: var(--jp-content-font-color0, rgba(0, 0, 0, 1));\n",
" --xr-font-color2: var(--jp-content-font-color2, rgba(0, 0, 0, 0.54));\n",
" --xr-font-color3: var(--jp-content-font-color3, rgba(0, 0, 0, 0.38));\n",
" --xr-border-color: var(--jp-border-color2, #e0e0e0);\n",
" --xr-disabled-color: var(--jp-layout-color3, #bdbdbd);\n",
" --xr-background-color: var(--jp-layout-color0, white);\n",
" --xr-background-color-row-even: var(--jp-layout-color1, white);\n",
" --xr-background-color-row-odd: var(--jp-layout-color2, #eeeeee);\n",
"}\n",
"\n",
"html[theme=dark],\n",
"html[data-theme=dark],\n",
"body[data-theme=dark],\n",
"body.vscode-dark {\n",
" --xr-font-color0: rgba(255, 255, 255, 1);\n",
" --xr-font-color2: rgba(255, 255, 255, 0.54);\n",
" --xr-font-color3: rgba(255, 255, 255, 0.38);\n",
" --xr-border-color: #1F1F1F;\n",
" --xr-disabled-color: #515151;\n",
" --xr-background-color: #111111;\n",
" --xr-background-color-row-even: #111111;\n",
" --xr-background-color-row-odd: #313131;\n",
"}\n",
"\n",
".xr-wrap {\n",
" display: block !important;\n",
" min-width: 300px;\n",
" max-width: 700px;\n",
"}\n",
"\n",
".xr-text-repr-fallback {\n",
" /* fallback to plain text repr when CSS is not injected (untrusted notebook) */\n",
" display: none;\n",
"}\n",
"\n",
".xr-header {\n",
" padding-top: 6px;\n",
" padding-bottom: 6px;\n",
" margin-bottom: 4px;\n",
" border-bottom: solid 1px var(--xr-border-color);\n",
"}\n",
"\n",
".xr-header > div,\n",
".xr-header > ul {\n",
" display: inline;\n",
" margin-top: 0;\n",
" margin-bottom: 0;\n",
"}\n",
"\n",
".xr-obj-type,\n",
".xr-array-name {\n",
" margin-left: 2px;\n",
" margin-right: 10px;\n",
"}\n",
"\n",
".xr-obj-type {\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-sections {\n",
" padding-left: 0 !important;\n",
" display: grid;\n",
" grid-template-columns: 150px auto auto 1fr 0 20px 0 20px;\n",
"}\n",
"\n",
".xr-section-item {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-section-item input {\n",
" display: inline-block;\n",
" opacity: 0;\n",
"}\n",
"\n",
".xr-section-item input + label {\n",
" color: var(--xr-disabled-color);\n",
"}\n",
"\n",
".xr-section-item input:enabled + label {\n",
" cursor: pointer;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-section-item input:focus + label {\n",
" border: 2px solid var(--xr-font-color0);\n",
"}\n",
"\n",
".xr-section-item input:enabled + label:hover {\n",
" color: var(--xr-font-color0);\n",
"}\n",
"\n",
".xr-section-summary {\n",
" grid-column: 1;\n",
" color: var(--xr-font-color2);\n",
" font-weight: 500;\n",
"}\n",
"\n",
".xr-section-summary > span {\n",
" display: inline-block;\n",
" padding-left: 0.5em;\n",
"}\n",
"\n",
".xr-section-summary-in:disabled + label {\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-section-summary-in + label:before {\n",
" display: inline-block;\n",
" content: '►';\n",
" font-size: 11px;\n",
" width: 15px;\n",
" text-align: center;\n",
"}\n",
"\n",
".xr-section-summary-in:disabled + label:before {\n",
" color: var(--xr-disabled-color);\n",
"}\n",
"\n",
".xr-section-summary-in:checked + label:before {\n",
" content: '▼';\n",
"}\n",
"\n",
".xr-section-summary-in:checked + label > span {\n",
" display: none;\n",
"}\n",
"\n",
".xr-section-summary,\n",
".xr-section-inline-details {\n",
" padding-top: 4px;\n",
" padding-bottom: 4px;\n",
"}\n",
"\n",
".xr-section-inline-details {\n",
" grid-column: 2 / -1;\n",
"}\n",
"\n",
".xr-section-details {\n",
" display: none;\n",
" grid-column: 1 / -1;\n",
" margin-bottom: 5px;\n",
"}\n",
"\n",
".xr-section-summary-in:checked ~ .xr-section-details {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-array-wrap {\n",
" grid-column: 1 / -1;\n",
" display: grid;\n",
" grid-template-columns: 20px auto;\n",
"}\n",
"\n",
".xr-array-wrap > label {\n",
" grid-column: 1;\n",
" vertical-align: top;\n",
"}\n",
"\n",
".xr-preview {\n",
" color: var(--xr-font-color3);\n",
"}\n",
"\n",
".xr-array-preview,\n",
".xr-array-data {\n",
" padding: 0 5px !important;\n",
" grid-column: 2;\n",
"}\n",
"\n",
".xr-array-data,\n",
".xr-array-in:checked ~ .xr-array-preview {\n",
" display: none;\n",
"}\n",
"\n",
".xr-array-in:checked ~ .xr-array-data,\n",
".xr-array-preview {\n",
" display: inline-block;\n",
"}\n",
"\n",
".xr-dim-list {\n",
" display: inline-block !important;\n",
" list-style: none;\n",
" padding: 0 !important;\n",
" margin: 0;\n",
"}\n",
"\n",
".xr-dim-list li {\n",
" display: inline-block;\n",
" padding: 0;\n",
" margin: 0;\n",
"}\n",
"\n",
".xr-dim-list:before {\n",
" content: '(';\n",
"}\n",
"\n",
".xr-dim-list:after {\n",
" content: ')';\n",
"}\n",
"\n",
".xr-dim-list li:not(:last-child):after {\n",
" content: ',';\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-has-index {\n",
" font-weight: bold;\n",
"}\n",
"\n",
".xr-var-list,\n",
".xr-var-item {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-var-item > div,\n",
".xr-var-item label,\n",
".xr-var-item > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-even);\n",
" margin-bottom: 0;\n",
"}\n",
"\n",
".xr-var-item > .xr-var-name:hover span {\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-var-list > li:nth-child(odd) > div,\n",
".xr-var-list > li:nth-child(odd) > label,\n",
".xr-var-list > li:nth-child(odd) > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-odd);\n",
"}\n",
"\n",
".xr-var-name {\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-var-dims {\n",
" grid-column: 2;\n",
"}\n",
"\n",
".xr-var-dtype {\n",
" grid-column: 3;\n",
" text-align: right;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-preview {\n",
" grid-column: 4;\n",
"}\n",
"\n",
".xr-index-preview {\n",
" grid-column: 2 / 5;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-name,\n",
".xr-var-dims,\n",
".xr-var-dtype,\n",
".xr-preview,\n",
".xr-attrs dt {\n",
" white-space: nowrap;\n",
" overflow: hidden;\n",
" text-overflow: ellipsis;\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-var-name:hover,\n",
".xr-var-dims:hover,\n",
".xr-var-dtype:hover,\n",
".xr-attrs dt:hover {\n",
" overflow: visible;\n",
" width: auto;\n",
" z-index: 1;\n",
"}\n",
"\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" display: none;\n",
" background-color: var(--xr-background-color) !important;\n",
" padding-bottom: 5px !important;\n",
"}\n",
"\n",
".xr-var-attrs-in:checked ~ .xr-var-attrs,\n",
".xr-var-data-in:checked ~ .xr-var-data,\n",
".xr-index-data-in:checked ~ .xr-index-data {\n",
" display: block;\n",
"}\n",
"\n",
".xr-var-data > table {\n",
" float: right;\n",
"}\n",
"\n",
".xr-var-name span,\n",
".xr-var-data,\n",
".xr-index-name div,\n",
".xr-index-data,\n",
".xr-attrs {\n",
" padding-left: 25px !important;\n",
"}\n",
"\n",
".xr-attrs,\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" grid-column: 1 / -1;\n",
"}\n",
"\n",
"dl.xr-attrs {\n",
" padding: 0;\n",
" margin: 0;\n",
" display: grid;\n",
" grid-template-columns: 125px auto;\n",
"}\n",
"\n",
".xr-attrs dt,\n",
".xr-attrs dd {\n",
" padding: 0;\n",
" margin: 0;\n",
" float: left;\n",
" padding-right: 10px;\n",
" width: auto;\n",
"}\n",
"\n",
".xr-attrs dt {\n",
" font-weight: normal;\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-attrs dt:hover span {\n",
" display: inline-block;\n",
" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-attrs dd {\n",
" grid-column: 2;\n",
" white-space: pre-wrap;\n",
" word-break: break-all;\n",
"}\n",
"\n",
".xr-icon-database,\n",
".xr-icon-file-text2,\n",
".xr-no-icon {\n",
" display: inline-block;\n",
" vertical-align: middle;\n",
" width: 1em;\n",
" height: 1.5em !important;\n",
" stroke-width: 0;\n",
" stroke: currentColor;\n",
" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><xarray.UxDataArray 'psi' (n_face: 5400)> Size: 43kB\n",
"[5400 values with dtype=float64]\n",
"Dimensions without coordinates: n_face</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.UxDataArray</div><div class='xr-array-name'>'psi'</div><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li></ul></div><ul class='xr-sections'><li class='xr-section-item'><div class='xr-array-wrap'><input id='section-92647628-03f4-42c0-9e13-67d0655db5d5' class='xr-array-in' type='checkbox' checked><label for='section-92647628-03f4-42c0-9e13-67d0655db5d5' title='Show/hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-array-preview xr-preview'><span>...</span></div><div class='xr-array-data'><pre>[5400 values with dtype=float64]</pre></div></div></li><li class='xr-section-item'><input id='section-50af171f-d64d-42db-be56-f6a66a3adb7c' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-50af171f-d64d-42db-be56-f6a66a3adb7c' class='xr-section-summary' title='Expand/collapse section'>Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-4f5ff00f-5bf7-4383-a407-2c4ff9444b4d' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-4f5ff00f-5bf7-4383-a407-2c4ff9444b4d' class='xr-section-summary' title='Expand/collapse section'>Indexes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-e8ba5342-246c-4127-bd6b-4949038eb607' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-e8ba5342-246c-4127-bd6b-4949038eb607' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div><details><summary>Show Grid Information</summary><div><svg style=\"position: absolute; width: 0; height: 0; overflow: hidden\">\n",
"<defs>\n",
"<symbol id=\"icon-database\" viewBox=\"0 0 32 32\">\n",
"<path d=\"M16 0c-8.837 0-16 2.239-16 5v4c0 2.761 7.163 5 16 5s16-2.239 16-5v-4c0-2.761-7.163-5-16-5z\"></path>\n",
"<path d=\"M16 17c-8.837 0-16-2.239-16-5v6c0 2.761 7.163 5 16 5s16-2.239 16-5v-6c0 2.761-7.163 5-16 5z\"></path>\n",
"<path d=\"M16 26c-8.837 0-16-2.239-16-5v6c0 2.761 7.163 5 16 5s16-2.239 16-5v-6c0 2.761-7.163 5-16 5z\"></path>\n",
"</symbol>\n",
"<symbol id=\"icon-file-text2\" viewBox=\"0 0 32 32\">\n",
"<path d=\"M28.681 7.159c-0.694-0.947-1.662-2.053-2.724-3.116s-2.169-2.030-3.116-2.724c-1.612-1.182-2.393-1.319-2.841-1.319h-15.5c-1.378 0-2.5 1.121-2.5 2.5v27c0 1.378 1.122 2.5 2.5 2.5h23c1.378 0 2.5-1.122 2.5-2.5v-19.5c0-0.448-0.137-1.23-1.319-2.841zM24.543 5.457c0.959 0.959 1.712 1.825 2.268 2.543h-4.811v-4.811c0.718 0.556 1.584 1.309 2.543 2.268zM28 29.5c0 0.271-0.229 0.5-0.5 0.5h-23c-0.271 0-0.5-0.229-0.5-0.5v-27c0-0.271 0.229-0.5 0.5-0.5 0 0 15.499-0 15.5 0v7c0 0.552 0.448 1 1 1h7v19.5z\"></path>\n",
"<path d=\"M23 26h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"<path d=\"M23 22h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"<path d=\"M23 18h-14c-0.552 0-1-0.448-1-1s0.448-1 1-1h14c0.552 0 1 0.448 1 1s-0.448 1-1 1z\"></path>\n",
"</symbol>\n",
"</defs>\n",
"</svg>\n",
"<style>/* CSS stylesheet for displaying xarray objects in jupyterlab.\n",
" *\n",
" */\n",
"\n",
":root {\n",
" --xr-font-color0: var(--jp-content-font-color0, rgba(0, 0, 0, 1));\n",
" --xr-font-color2: var(--jp-content-font-color2, rgba(0, 0, 0, 0.54));\n",
" --xr-font-color3: var(--jp-content-font-color3, rgba(0, 0, 0, 0.38));\n",
" --xr-border-color: var(--jp-border-color2, #e0e0e0);\n",
" --xr-disabled-color: var(--jp-layout-color3, #bdbdbd);\n",
" --xr-background-color: var(--jp-layout-color0, white);\n",
" --xr-background-color-row-even: var(--jp-layout-color1, white);\n",
" --xr-background-color-row-odd: var(--jp-layout-color2, #eeeeee);\n",
"}\n",
"\n",
"html[theme=dark],\n",
"html[data-theme=dark],\n",
"body[data-theme=dark],\n",
"body.vscode-dark {\n",
" --xr-font-color0: rgba(255, 255, 255, 1);\n",
" --xr-font-color2: rgba(255, 255, 255, 0.54);\n",
" --xr-font-color3: rgba(255, 255, 255, 0.38);\n",
" --xr-border-color: #1F1F1F;\n",
" --xr-disabled-color: #515151;\n",
" --xr-background-color: #111111;\n",
" --xr-background-color-row-even: #111111;\n",
" --xr-background-color-row-odd: #313131;\n",
"}\n",
"\n",
".xr-wrap {\n",
" display: block !important;\n",
" min-width: 300px;\n",
" max-width: 700px;\n",
"}\n",
"\n",
".xr-text-repr-fallback {\n",
" /* fallback to plain text repr when CSS is not injected (untrusted notebook) */\n",
" display: none;\n",
"}\n",
"\n",
".xr-header {\n",
" padding-top: 6px;\n",
" padding-bottom: 6px;\n",
" margin-bottom: 4px;\n",
" border-bottom: solid 1px var(--xr-border-color);\n",
"}\n",
"\n",
".xr-header > div,\n",
".xr-header > ul {\n",
" display: inline;\n",
" margin-top: 0;\n",
" margin-bottom: 0;\n",
"}\n",
"\n",
".xr-obj-type,\n",
".xr-array-name {\n",
" margin-left: 2px;\n",
" margin-right: 10px;\n",
"}\n",
"\n",
".xr-obj-type {\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-sections {\n",
" padding-left: 0 !important;\n",
" display: grid;\n",
" grid-template-columns: 150px auto auto 1fr 0 20px 0 20px;\n",
"}\n",
"\n",
".xr-section-item {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-section-item input {\n",
" display: inline-block;\n",
" opacity: 0;\n",
"}\n",
"\n",
".xr-section-item input + label {\n",
" color: var(--xr-disabled-color);\n",
"}\n",
"\n",
".xr-section-item input:enabled + label {\n",
" cursor: pointer;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-section-item input:focus + label {\n",
" border: 2px solid var(--xr-font-color0);\n",
"}\n",
"\n",
".xr-section-item input:enabled + label:hover {\n",
" color: var(--xr-font-color0);\n",
"}\n",
"\n",
".xr-section-summary {\n",
" grid-column: 1;\n",
" color: var(--xr-font-color2);\n",
" font-weight: 500;\n",
"}\n",
"\n",
".xr-section-summary > span {\n",
" display: inline-block;\n",
" padding-left: 0.5em;\n",
"}\n",
"\n",
".xr-section-summary-in:disabled + label {\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-section-summary-in + label:before {\n",
" display: inline-block;\n",
" content: '►';\n",
" font-size: 11px;\n",
" width: 15px;\n",
" text-align: center;\n",
"}\n",
"\n",
".xr-section-summary-in:disabled + label:before {\n",
" color: var(--xr-disabled-color);\n",
"}\n",
"\n",
".xr-section-summary-in:checked + label:before {\n",
" content: '▼';\n",
"}\n",
"\n",
".xr-section-summary-in:checked + label > span {\n",
" display: none;\n",
"}\n",
"\n",
".xr-section-summary,\n",
".xr-section-inline-details {\n",
" padding-top: 4px;\n",
" padding-bottom: 4px;\n",
"}\n",
"\n",
".xr-section-inline-details {\n",
" grid-column: 2 / -1;\n",
"}\n",
"\n",
".xr-section-details {\n",
" display: none;\n",
" grid-column: 1 / -1;\n",
" margin-bottom: 5px;\n",
"}\n",
"\n",
".xr-section-summary-in:checked ~ .xr-section-details {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-array-wrap {\n",
" grid-column: 1 / -1;\n",
" display: grid;\n",
" grid-template-columns: 20px auto;\n",
"}\n",
"\n",
".xr-array-wrap > label {\n",
" grid-column: 1;\n",
" vertical-align: top;\n",
"}\n",
"\n",
".xr-preview {\n",
" color: var(--xr-font-color3);\n",
"}\n",
"\n",
".xr-array-preview,\n",
".xr-array-data {\n",
" padding: 0 5px !important;\n",
" grid-column: 2;\n",
"}\n",
"\n",
".xr-array-data,\n",
".xr-array-in:checked ~ .xr-array-preview {\n",
" display: none;\n",
"}\n",
"\n",
".xr-array-in:checked ~ .xr-array-data,\n",
".xr-array-preview {\n",
" display: inline-block;\n",
"}\n",
"\n",
".xr-dim-list {\n",
" display: inline-block !important;\n",
" list-style: none;\n",
" padding: 0 !important;\n",
" margin: 0;\n",
"}\n",
"\n",
".xr-dim-list li {\n",
" display: inline-block;\n",
" padding: 0;\n",
" margin: 0;\n",
"}\n",
"\n",
".xr-dim-list:before {\n",
" content: '(';\n",
"}\n",
"\n",
".xr-dim-list:after {\n",
" content: ')';\n",
"}\n",
"\n",
".xr-dim-list li:not(:last-child):after {\n",
" content: ',';\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-has-index {\n",
" font-weight: bold;\n",
"}\n",
"\n",
".xr-var-list,\n",
".xr-var-item {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-var-item > div,\n",
".xr-var-item label,\n",
".xr-var-item > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-even);\n",
" margin-bottom: 0;\n",
"}\n",
"\n",
".xr-var-item > .xr-var-name:hover span {\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-var-list > li:nth-child(odd) > div,\n",
".xr-var-list > li:nth-child(odd) > label,\n",
".xr-var-list > li:nth-child(odd) > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-odd);\n",
"}\n",
"\n",
".xr-var-name {\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-var-dims {\n",
" grid-column: 2;\n",
"}\n",
"\n",
".xr-var-dtype {\n",
" grid-column: 3;\n",
" text-align: right;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-preview {\n",
" grid-column: 4;\n",
"}\n",
"\n",
".xr-index-preview {\n",
" grid-column: 2 / 5;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-var-name,\n",
".xr-var-dims,\n",
".xr-var-dtype,\n",
".xr-preview,\n",
".xr-attrs dt {\n",
" white-space: nowrap;\n",
" overflow: hidden;\n",
" text-overflow: ellipsis;\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-var-name:hover,\n",
".xr-var-dims:hover,\n",
".xr-var-dtype:hover,\n",
".xr-attrs dt:hover {\n",
" overflow: visible;\n",
" width: auto;\n",
" z-index: 1;\n",
"}\n",
"\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" display: none;\n",
" background-color: var(--xr-background-color) !important;\n",
" padding-bottom: 5px !important;\n",
"}\n",
"\n",
".xr-var-attrs-in:checked ~ .xr-var-attrs,\n",
".xr-var-data-in:checked ~ .xr-var-data,\n",
".xr-index-data-in:checked ~ .xr-index-data {\n",
" display: block;\n",
"}\n",
"\n",
".xr-var-data > table {\n",
" float: right;\n",
"}\n",
"\n",
".xr-var-name span,\n",
".xr-var-data,\n",
".xr-index-name div,\n",
".xr-index-data,\n",
".xr-attrs {\n",
" padding-left: 25px !important;\n",
"}\n",
"\n",
".xr-attrs,\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" grid-column: 1 / -1;\n",
"}\n",
"\n",
"dl.xr-attrs {\n",
" padding: 0;\n",
" margin: 0;\n",
" display: grid;\n",
" grid-template-columns: 125px auto;\n",
"}\n",
"\n",
".xr-attrs dt,\n",
".xr-attrs dd {\n",
" padding: 0;\n",
" margin: 0;\n",
" float: left;\n",
" padding-right: 10px;\n",
" width: auto;\n",
"}\n",
"\n",
".xr-attrs dt {\n",
" font-weight: normal;\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-attrs dt:hover span {\n",
" display: inline-block;\n",
" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-attrs dd {\n",
" grid-column: 2;\n",
" white-space: pre-wrap;\n",
" word-break: break-all;\n",
"}\n",
"\n",
".xr-icon-database,\n",
".xr-icon-file-text2,\n",
".xr-no-icon {\n",
" display: inline-block;\n",
" vertical-align: middle;\n",
" width: 1em;\n",
" height: 1.5em !important;\n",
" stroke-width: 0;\n",
" stroke: currentColor;\n",
" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)\n",
"</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.UxDataArray.uxgrid</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-eefb8c21-c7c8-439b-8c5b-37f4ba7e432f' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-eefb8c21-c7c8-439b-8c5b-37f4ba7e432f' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li><li><span>n_max_face_nodes</span>: 4</li><li><span>n_node</span>: 5402</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-ef68d762-db36-43bf-a545-468743167a85' class='xr-section-summary-in' type='checkbox' ><label for='section-ef68d762-db36-43bf-a545-468743167a85' class='xr-section-summary' >Spherical Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>node_lon</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-45.0 45.0 135.0 ... 138.0 135.0</div><input id='attrs-e01a2ebd-3f7d-4972-bdaf-e97401f6b6b1' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-e01a2ebd-3f7d-4972-bdaf-e97401f6b6b1' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-f2cc9ce5-59f4-420f-8267-22651c23a312' class='xr-var-data-in' type='checkbox'><label for='data-f2cc9ce5-59f4-420f-8267-22651c23a312' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>longitude</dd><dt><span>long_name :</span></dt><dd>longitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-45. , 45. , 135. , ..., 141.09968961,\n",
" 138.03317102, 135. ])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span>node_lat</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-e8f346e0-d598-4b79-bc32-05f7cc74c978' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-e8f346e0-d598-4b79-bc32-05f7cc74c978' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-1fab91c5-7590-4935-9ec7-7c991ae4a242' class='xr-var-data-in' type='checkbox'><label for='data-1fab91c5-7590-4935-9ec7-7c991ae4a242' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>latitude</dd><dt><span>long_name :</span></dt><dd>latitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>[5402 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-504b985d-f5d9-402c-a782-3ef851cb95e6' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-504b985d-f5d9-402c-a782-3ef851cb95e6' class='xr-section-summary' title='Expand/collapse section'>Cartesian Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-461365de-534d-4857-829a-873aeff3dc61' class='xr-section-summary-in' type='checkbox' ><label for='section-461365de-534d-4857-829a-873aeff3dc61' class='xr-section-summary' >Connectivity: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>face_node_connectivity</span></div><div class='xr-var-dims'>(n_face, n_max_face_nodes)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>0 8 356 124 8 ... 5401 297 6 298</div><input id='attrs-7a6394d0-7eaf-4b54-b5bf-7f9110c5ba17' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-7a6394d0-7eaf-4b54-b5bf-7f9110c5ba17' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-e0386f61-bb4f-412f-b4c1-6dafd57a7657' class='xr-var-data-in' type='checkbox'><label for='data-e0386f61-bb4f-412f-b4c1-6dafd57a7657' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>face_node_connectivity</dd><dt><span>start_index :</span></dt><dd>0</dd><dt><span>_FillValue :</span></dt><dd>-9223372036854775808</dd></dl></div><div class='xr-var-data'><pre>array([[ 0, 8, 356, 124],\n",
" [ 8, 9, 357, 356],\n",
" [ 9, 10, 358, 357],\n",
" ...,\n",
" [5399, 5400, 299, 300],\n",
" [5400, 5401, 298, 299],\n",
" [5401, 297, 6, 298]])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-08ae0cd6-5535-4c89-9201-342c6737c146' class='xr-section-summary-in' type='checkbox' ><label for='section-08ae0cd6-5535-4c89-9201-342c6737c146' class='xr-section-summary' >Descriptors: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>n_nodes_per_face</span></div><div class='xr-var-dims'>(n_face)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>4 4 4 4 4 4 4 4 ... 4 4 4 4 4 4 4 4</div><input id='attrs-686f99eb-1b61-4bd6-8571-e86522ef41ed' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-686f99eb-1b61-4bd6-8571-e86522ef41ed' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-4421cea0-8304-4a4a-8173-2e5557234852' class='xr-var-data-in' type='checkbox'><label for='data-4421cea0-8304-4a4a-8173-2e5557234852' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>n_nodes_per_face</dd><dt><span>long name :</span></dt><dd>Number of nodes per face</dd></dl></div><div class='xr-var-data'><pre>array([4, 4, 4, ..., 4, 4, 4])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-7acc116e-2428-4528-ac5f-e4443f3a1264' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-7acc116e-2428-4528-ac5f-e4443f3a1264' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div></details></div></div>"
],
"text/plain": [
"<xarray.UxDataArray 'psi' (n_face: 5400)> Size: 43kB\n",
"[5400 values with dtype=float64]\n",
"Dimensions without coordinates: n_face"
]
},
"execution_count": 6,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"uxds[\"psi\"]"
]
},
{
"cell_type": "markdown",
"id": "df0d0584-384f-45de-b63f-4c6803d15ed9",
"metadata": {},
"source": [
"### Grid Accessor\n",
"\n",
"The ``Grid``object of this data array is the same ``Grid`` object as ``uxds``'s above:"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "06e0a099-5e71-4b42-afc8-6fa1856a8e5e",
"metadata": {},
"outputs": [
{
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"\n",
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"\n",
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" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)\n",
"</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>uxarray.Grid</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-0fb19b37-e825-4242-995f-98a6aec04a9e' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-0fb19b37-e825-4242-995f-98a6aec04a9e' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span>n_face</span>: 5400</li><li><span>n_max_face_nodes</span>: 4</li><li><span>n_node</span>: 5402</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-ae2731dc-050a-4fe5-9d19-fdd5edbefc81' class='xr-section-summary-in' type='checkbox' checked><label for='section-ae2731dc-050a-4fe5-9d19-fdd5edbefc81' class='xr-section-summary' >Spherical Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>node_lon</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-45.0 45.0 135.0 ... 138.0 135.0</div><input id='attrs-1c3d91bd-13a7-4328-a80e-1efb98d7b86c' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-1c3d91bd-13a7-4328-a80e-1efb98d7b86c' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-adfd132e-f619-4582-85f3-b30283bded41' class='xr-var-data-in' type='checkbox'><label for='data-adfd132e-f619-4582-85f3-b30283bded41' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>longitude</dd><dt><span>long_name :</span></dt><dd>longitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-45. , 45. , 135. , ..., 141.09968961,\n",
" 138.03317102, 135. ])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span>node_lat</span></div><div class='xr-var-dims'>(n_node)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-3d842bee-a8eb-424d-8bb0-ef820ba382f9' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-3d842bee-a8eb-424d-8bb0-ef820ba382f9' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-7271e302-c573-47e1-8d47-80276bffefe9' class='xr-var-data-in' type='checkbox'><label for='data-7271e302-c573-47e1-8d47-80276bffefe9' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>standard_name :</span></dt><dd>latitude</dd><dt><span>long_name :</span></dt><dd>latitude of 2D mesh nodes</dd><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>[5402 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-5919a552-eb34-47db-b0ea-534cb303b1c4' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-5919a552-eb34-47db-b0ea-534cb303b1c4' class='xr-section-summary' title='Expand/collapse section'>Cartesian Coordinates: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'></ul></div></li><li class='xr-section-item'><input id='section-5eafac8c-496a-4b40-9447-9c1d40d9f6c0' class='xr-section-summary-in' type='checkbox' checked><label for='section-5eafac8c-496a-4b40-9447-9c1d40d9f6c0' class='xr-section-summary' >Connectivity: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>face_node_connectivity</span></div><div class='xr-var-dims'>(n_face, n_max_face_nodes)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>0 8 356 124 8 ... 5401 297 6 298</div><input id='attrs-c0f5418e-ade5-43c2-aa2a-bf7fe0d4e12b' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-c0f5418e-ade5-43c2-aa2a-bf7fe0d4e12b' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-1d041101-4cad-4878-b160-965627a6778a' class='xr-var-data-in' type='checkbox'><label for='data-1d041101-4cad-4878-b160-965627a6778a' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>face_node_connectivity</dd><dt><span>start_index :</span></dt><dd>0</dd><dt><span>_FillValue :</span></dt><dd>-9223372036854775808</dd></dl></div><div class='xr-var-data'><pre>array([[ 0, 8, 356, 124],\n",
" [ 8, 9, 357, 356],\n",
" [ 9, 10, 358, 357],\n",
" ...,\n",
" [5399, 5400, 299, 300],\n",
" [5400, 5401, 298, 299],\n",
" [5401, 297, 6, 298]])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-4e8a3405-9f7e-4d33-8b73-dcc0bbee329a' class='xr-section-summary-in' type='checkbox' checked><label for='section-4e8a3405-9f7e-4d33-8b73-dcc0bbee329a' class='xr-section-summary' >Descriptors: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>n_nodes_per_face</span></div><div class='xr-var-dims'>(n_face)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>4 4 4 4 4 4 4 4 ... 4 4 4 4 4 4 4 4</div><input id='attrs-9562ac13-a2a7-494e-ab40-4dcc0a387ad4' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-9562ac13-a2a7-494e-ab40-4dcc0a387ad4' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-fc2ee572-2dca-4d23-be80-35820f422f92' class='xr-var-data-in' type='checkbox'><label for='data-fc2ee572-2dca-4d23-be80-35820f422f92' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>cf_role :</span></dt><dd>n_nodes_per_face</dd><dt><span>long name :</span></dt><dd>Number of nodes per face</dd></dl></div><div class='xr-var-data'><pre>array([4, 4, 4, ..., 4, 4, 4])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-270bc41c-bcc8-4a0c-aeb0-5134e1bc7d7b' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-270bc41c-bcc8-4a0c-aeb0-5134e1bc7d7b' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div>"
],
"text/plain": [
"<uxarray.Grid>\n",
"Original Grid Type: UGRID\n",
"Grid Dimensions:\n",
" * n_node: 5402\n",
" * n_face: 5400\n",
" * n_max_face_nodes: 4\n",
" * n_nodes_per_face: (5400,)\n",
"Grid Coordinates (Spherical):\n",
" * node_lon: (5402,)\n",
" * node_lat: (5402,)\n",
"Grid Coordinates (Cartesian):\n",
"Grid Connectivity Variables:\n",
" * face_node_connectivity: (5400, 4)\n",
"Grid Descriptor Variables:\n",
" * n_nodes_per_face: (5400,)"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"uxda = uxds[\"psi\"]\n",
"uxda.uxgrid"
]
},
{
"cell_type": "markdown",
"id": "97f9b990-6a92-4de9-baf8-da7728ef67a5",
"metadata": {},
"source": [
"## Relationship to Xarray"
]
},
{
"cell_type": "markdown",
"id": "ffd122d2-513c-415d-97b9-5eb40db986af",
"metadata": {},
"source": [
"For users coming from an Xarray background, much of UXarray's design is familiar thanks to the UXarray's inheritance of the core data structures from Xarray's counterparts and employment of design choices such as accessors. Inheritance has been chosen for the UXarray design both to provide the users with a Xarray-like user experience and to use the built-in Xarray functionality whenever possible while overwrite the others for unstructured grid arithmetic.\n",
"\n",
"As a simple Xarray example that would replicate the above UXarray dataset opening and variable access with UXarray, please see the following code: "
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "048279bd-3628-4478-9384-6807e3c24b65",
"metadata": {},
"outputs": [
{
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"<style>/* CSS stylesheet for displaying xarray objects in jupyterlab.\n",
" *\n",
" */\n",
"\n",
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" --xr-disabled-color: var(--jp-layout-color3, #bdbdbd);\n",
" --xr-background-color: var(--jp-layout-color0, white);\n",
" --xr-background-color-row-even: var(--jp-layout-color1, white);\n",
" --xr-background-color-row-odd: var(--jp-layout-color2, #eeeeee);\n",
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"\n",
"html[theme=dark],\n",
"html[data-theme=dark],\n",
"body[data-theme=dark],\n",
"body.vscode-dark {\n",
" --xr-font-color0: rgba(255, 255, 255, 1);\n",
" --xr-font-color2: rgba(255, 255, 255, 0.54);\n",
" --xr-font-color3: rgba(255, 255, 255, 0.38);\n",
" --xr-border-color: #1F1F1F;\n",
" --xr-disabled-color: #515151;\n",
" --xr-background-color: #111111;\n",
" --xr-background-color-row-even: #111111;\n",
" --xr-background-color-row-odd: #313131;\n",
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"\n",
".xr-wrap {\n",
" display: block !important;\n",
" min-width: 300px;\n",
" max-width: 700px;\n",
"}\n",
"\n",
".xr-text-repr-fallback {\n",
" /* fallback to plain text repr when CSS is not injected (untrusted notebook) */\n",
" display: none;\n",
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"\n",
".xr-header {\n",
" padding-top: 6px;\n",
" padding-bottom: 6px;\n",
" margin-bottom: 4px;\n",
" border-bottom: solid 1px var(--xr-border-color);\n",
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"\n",
".xr-header > div,\n",
".xr-header > ul {\n",
" display: inline;\n",
" margin-top: 0;\n",
" margin-bottom: 0;\n",
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"\n",
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".xr-array-name {\n",
" margin-left: 2px;\n",
" margin-right: 10px;\n",
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"\n",
".xr-obj-type {\n",
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"\n",
".xr-sections {\n",
" padding-left: 0 !important;\n",
" display: grid;\n",
" grid-template-columns: 150px auto auto 1fr 0 20px 0 20px;\n",
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"\n",
".xr-section-item {\n",
" display: contents;\n",
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"\n",
".xr-section-item input {\n",
" display: inline-block;\n",
" opacity: 0;\n",
"}\n",
"\n",
".xr-section-item input + label {\n",
" color: var(--xr-disabled-color);\n",
"}\n",
"\n",
".xr-section-item input:enabled + label {\n",
" cursor: pointer;\n",
" color: var(--xr-font-color2);\n",
"}\n",
"\n",
".xr-section-item input:focus + label {\n",
" border: 2px solid var(--xr-font-color0);\n",
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"\n",
".xr-section-item input:enabled + label:hover {\n",
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".xr-section-summary {\n",
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"\n",
".xr-section-summary > span {\n",
" display: inline-block;\n",
" padding-left: 0.5em;\n",
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".xr-section-summary-in:disabled + label {\n",
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"\n",
".xr-section-summary-in + label:before {\n",
" display: inline-block;\n",
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" font-size: 11px;\n",
" width: 15px;\n",
" text-align: center;\n",
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"\n",
".xr-section-summary-in:disabled + label:before {\n",
" color: var(--xr-disabled-color);\n",
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"\n",
".xr-section-summary-in:checked + label:before {\n",
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"\n",
".xr-section-summary-in:checked + label > span {\n",
" display: none;\n",
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"\n",
".xr-section-summary,\n",
".xr-section-inline-details {\n",
" padding-top: 4px;\n",
" padding-bottom: 4px;\n",
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"\n",
".xr-section-inline-details {\n",
" grid-column: 2 / -1;\n",
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"\n",
".xr-section-details {\n",
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" grid-column: 1 / -1;\n",
" margin-bottom: 5px;\n",
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"\n",
".xr-section-summary-in:checked ~ .xr-section-details {\n",
" display: contents;\n",
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"\n",
".xr-array-wrap {\n",
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" display: grid;\n",
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"\n",
".xr-array-wrap > label {\n",
" grid-column: 1;\n",
" vertical-align: top;\n",
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"\n",
".xr-preview {\n",
" color: var(--xr-font-color3);\n",
"}\n",
"\n",
".xr-array-preview,\n",
".xr-array-data {\n",
" padding: 0 5px !important;\n",
" grid-column: 2;\n",
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"\n",
".xr-array-data,\n",
".xr-array-in:checked ~ .xr-array-preview {\n",
" display: none;\n",
"}\n",
"\n",
".xr-array-in:checked ~ .xr-array-data,\n",
".xr-array-preview {\n",
" display: inline-block;\n",
"}\n",
"\n",
".xr-dim-list {\n",
" display: inline-block !important;\n",
" list-style: none;\n",
" padding: 0 !important;\n",
" margin: 0;\n",
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"\n",
".xr-dim-list li {\n",
" display: inline-block;\n",
" padding: 0;\n",
" margin: 0;\n",
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"\n",
".xr-dim-list:before {\n",
" content: '(';\n",
"}\n",
"\n",
".xr-dim-list:after {\n",
" content: ')';\n",
"}\n",
"\n",
".xr-dim-list li:not(:last-child):after {\n",
" content: ',';\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-has-index {\n",
" font-weight: bold;\n",
"}\n",
"\n",
".xr-var-list,\n",
".xr-var-item {\n",
" display: contents;\n",
"}\n",
"\n",
".xr-var-item > div,\n",
".xr-var-item label,\n",
".xr-var-item > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-even);\n",
" margin-bottom: 0;\n",
"}\n",
"\n",
".xr-var-item > .xr-var-name:hover span {\n",
" padding-right: 5px;\n",
"}\n",
"\n",
".xr-var-list > li:nth-child(odd) > div,\n",
".xr-var-list > li:nth-child(odd) > label,\n",
".xr-var-list > li:nth-child(odd) > .xr-var-name span {\n",
" background-color: var(--xr-background-color-row-odd);\n",
"}\n",
"\n",
".xr-var-name {\n",
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"\n",
".xr-var-dims {\n",
" grid-column: 2;\n",
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"\n",
".xr-var-dtype {\n",
" grid-column: 3;\n",
" text-align: right;\n",
" color: var(--xr-font-color2);\n",
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"\n",
".xr-var-preview {\n",
" grid-column: 4;\n",
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"\n",
".xr-index-preview {\n",
" grid-column: 2 / 5;\n",
" color: var(--xr-font-color2);\n",
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"\n",
".xr-var-name,\n",
".xr-var-dims,\n",
".xr-var-dtype,\n",
".xr-preview,\n",
".xr-attrs dt {\n",
" white-space: nowrap;\n",
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" text-overflow: ellipsis;\n",
" padding-right: 10px;\n",
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"\n",
".xr-var-name:hover,\n",
".xr-var-dims:hover,\n",
".xr-var-dtype:hover,\n",
".xr-attrs dt:hover {\n",
" overflow: visible;\n",
" width: auto;\n",
" z-index: 1;\n",
"}\n",
"\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" display: none;\n",
" background-color: var(--xr-background-color) !important;\n",
" padding-bottom: 5px !important;\n",
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"\n",
".xr-var-attrs-in:checked ~ .xr-var-attrs,\n",
".xr-var-data-in:checked ~ .xr-var-data,\n",
".xr-index-data-in:checked ~ .xr-index-data {\n",
" display: block;\n",
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"\n",
".xr-var-data > table {\n",
" float: right;\n",
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"\n",
".xr-var-name span,\n",
".xr-var-data,\n",
".xr-index-name div,\n",
".xr-index-data,\n",
".xr-attrs {\n",
" padding-left: 25px !important;\n",
"}\n",
"\n",
".xr-attrs,\n",
".xr-var-attrs,\n",
".xr-var-data,\n",
".xr-index-data {\n",
" grid-column: 1 / -1;\n",
"}\n",
"\n",
"dl.xr-attrs {\n",
" padding: 0;\n",
" margin: 0;\n",
" display: grid;\n",
" grid-template-columns: 125px auto;\n",
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"\n",
".xr-attrs dt,\n",
".xr-attrs dd {\n",
" padding: 0;\n",
" margin: 0;\n",
" float: left;\n",
" padding-right: 10px;\n",
" width: auto;\n",
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"\n",
".xr-attrs dt {\n",
" font-weight: normal;\n",
" grid-column: 1;\n",
"}\n",
"\n",
".xr-attrs dt:hover span {\n",
" display: inline-block;\n",
" background: var(--xr-background-color);\n",
" padding-right: 10px;\n",
"}\n",
"\n",
".xr-attrs dd {\n",
" grid-column: 2;\n",
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"\n",
".xr-icon-database,\n",
".xr-icon-file-text2,\n",
".xr-no-icon {\n",
" display: inline-block;\n",
" vertical-align: middle;\n",
" width: 1em;\n",
" height: 1.5em !important;\n",
" stroke-width: 0;\n",
" stroke: currentColor;\n",
" fill: currentColor;\n",
"}\n",
"</style><pre class='xr-text-repr-fallback'><xarray.Dataset> Size: 30kB\n",
"Dimensions: (lat: 45, lon: 80)\n",
"Coordinates:\n",
" * lat (lat) int64 360B -90 -86 -82 -78 -74 -70 -66 ... 66 70 74 78 82 86\n",
" * lon (lon) float64 640B -180.0 -175.5 -171.0 ... 166.5 171.0 175.5\n",
"Data variables:\n",
" psi (lat, lon) float64 29kB ...</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>xarray.Dataset</div></div><ul class='xr-sections'><li class='xr-section-item'><input id='section-d51bf2b6-7fb4-47f5-9ffe-b3f4260ca3df' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-d51bf2b6-7fb4-47f5-9ffe-b3f4260ca3df' class='xr-section-summary' title='Expand/collapse section'>Dimensions:</label><div class='xr-section-inline-details'><ul class='xr-dim-list'><li><span class='xr-has-index'>lat</span>: 45</li><li><span class='xr-has-index'>lon</span>: 80</li></ul></div><div class='xr-section-details'></div></li><li class='xr-section-item'><input id='section-57788fd9-e61d-4da4-9931-6ed5ebcbdb0f' class='xr-section-summary-in' type='checkbox' checked><label for='section-57788fd9-e61d-4da4-9931-6ed5ebcbdb0f' class='xr-section-summary' >Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span class='xr-has-index'>lat</span></div><div class='xr-var-dims'>(lat)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>-90 -86 -82 -78 -74 ... 74 78 82 86</div><input id='attrs-17f9c7c9-72a5-436d-b21f-38e794eea707' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-17f9c7c9-72a5-436d-b21f-38e794eea707' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-c8ba6c5d-1ff9-4cc0-8a14-90881e91f46b' class='xr-var-data-in' type='checkbox'><label for='data-c8ba6c5d-1ff9-4cc0-8a14-90881e91f46b' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>array([-90, -86, -82, -78, -74, -70, -66, -62, -58, -54, -50, -46, -42, -38,\n",
" -34, -30, -26, -22, -18, -14, -10, -6, -2, 2, 6, 10, 14, 18,\n",
" 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 74,\n",
" 78, 82, 86])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span class='xr-has-index'>lon</span></div><div class='xr-var-dims'>(lon)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-180.0 -175.5 ... 171.0 175.5</div><input id='attrs-a776d17f-d53e-483c-9520-8709c1dee22e' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-a776d17f-d53e-483c-9520-8709c1dee22e' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-ecfa140d-bb36-4fea-85c4-56b43d97aeeb' class='xr-var-data-in' type='checkbox'><label for='data-ecfa140d-bb36-4fea-85c4-56b43d97aeeb' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-180. , -175.5, -171. , -166.5, -162. , -157.5, -153. , -148.5, -144. ,\n",
" -139.5, -135. , -130.5, -126. , -121.5, -117. , -112.5, -108. , -103.5,\n",
" -99. , -94.5, -90. , -85.5, -81. , -76.5, -72. , -67.5, -63. ,\n",
" -58.5, -54. , -49.5, -45. , -40.5, -36. , -31.5, -27. , -22.5,\n",
" -18. , -13.5, -9. , -4.5, 0. , 4.5, 9. , 13.5, 18. ,\n",
" 22.5, 27. , 31.5, 36. , 40.5, 45. , 49.5, 54. , 58.5,\n",
" 63. , 67.5, 72. , 76.5, 81. , 85.5, 90. , 94.5, 99. ,\n",
" 103.5, 108. , 112.5, 117. , 121.5, 126. , 130.5, 135. , 139.5,\n",
" 144. , 148.5, 153. , 157.5, 162. , 166.5, 171. , 175.5])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-364769e5-1b5d-4a21-9196-36c9472e0a59' class='xr-section-summary-in' type='checkbox' checked><label for='section-364769e5-1b5d-4a21-9196-36c9472e0a59' class='xr-section-summary' >Data variables: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span>psi</span></div><div class='xr-var-dims'>(lat, lon)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>...</div><input id='attrs-c858fc1a-9b72-4fb5-829f-d049669acdf4' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-c858fc1a-9b72-4fb5-829f-d049669acdf4' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-621f9a20-7d45-41a1-a850-ec7184794cdc' class='xr-var-data-in' type='checkbox'><label for='data-621f9a20-7d45-41a1-a850-ec7184794cdc' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>regrid_method :</span></dt><dd>nearest_s2d</dd></dl></div><div class='xr-var-data'><pre>[3600 values with dtype=float64]</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-0b2b1ff6-fd87-4bea-ba00-c5ef76de1746' class='xr-section-summary-in' type='checkbox' ><label for='section-0b2b1ff6-fd87-4bea-ba00-c5ef76de1746' class='xr-section-summary' >Indexes: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-index-name'><div>lat</div></div><div class='xr-index-preview'>PandasIndex</div><div></div><input id='index-e8be5c48-d177-4817-ae3f-879a5ad392ed' class='xr-index-data-in' type='checkbox'/><label for='index-e8be5c48-d177-4817-ae3f-879a5ad392ed' title='Show/Hide index repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-index-data'><pre>PandasIndex(Index([-90, -86, -82, -78, -74, -70, -66, -62, -58, -54, -50, -46, -42, -38,\n",
" -34, -30, -26, -22, -18, -14, -10, -6, -2, 2, 6, 10, 14, 18,\n",
" 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 74,\n",
" 78, 82, 86],\n",
" dtype='int64', name='lat'))</pre></div></li><li class='xr-var-item'><div class='xr-index-name'><div>lon</div></div><div class='xr-index-preview'>PandasIndex</div><div></div><input id='index-002c88b2-83e9-4176-a59c-3c029e29d844' class='xr-index-data-in' type='checkbox'/><label for='index-002c88b2-83e9-4176-a59c-3c029e29d844' title='Show/Hide index repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-index-data'><pre>PandasIndex(Index([-180.0, -175.5, -171.0, -166.5, -162.0, -157.5, -153.0, -148.5, -144.0,\n",
" -139.5, -135.0, -130.5, -126.0, -121.5, -117.0, -112.5, -108.0, -103.5,\n",
" -99.0, -94.5, -90.0, -85.5, -81.0, -76.5, -72.0, -67.5, -63.0,\n",
" -58.5, -54.0, -49.5, -45.0, -40.5, -36.0, -31.5, -27.0, -22.5,\n",
" -18.0, -13.5, -9.0, -4.5, 0.0, 4.5, 9.0, 13.5, 18.0,\n",
" 22.5, 27.0, 31.5, 36.0, 40.5, 45.0, 49.5, 54.0, 58.5,\n",
" 63.0, 67.5, 72.0, 76.5, 81.0, 85.5, 90.0, 94.5, 99.0,\n",
" 103.5, 108.0, 112.5, 117.0, 121.5, 126.0, 130.5, 135.0, 139.5,\n",
" 144.0, 148.5, 153.0, 157.5, 162.0, 166.5, 171.0, 175.5],\n",
" dtype='float64', name='lon'))</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-aa9673ca-3f21-4e56-89aa-d20e41025c54' class='xr-section-summary-in' type='checkbox' disabled ><label for='section-aa9673ca-3f21-4e56-89aa-d20e41025c54' class='xr-section-summary' title='Expand/collapse section'>Attributes: <span>(0)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'></dl></div></li></ul></div></div>"
],
"text/plain": [
"<xarray.Dataset> Size: 30kB\n",
"Dimensions: (lat: 45, lon: 80)\n",
"Coordinates:\n",
" * lat (lat) int64 360B -90 -86 -82 -78 -74 -70 -66 ... 66 70 74 78 82 86\n",
" * lon (lon) float64 640B -180.0 -175.5 -171.0 ... 166.5 171.0 175.5\n",
"Data variables:\n",
" psi (lat, lon) float64 29kB ..."
]
},
"execution_count": 7,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"# Import\n",
"import xarray as xr\n",
"\n",
"# Structured grid data file\n",
"data_path_structured = \"../../meshfiles/outCSne30.structured.nc\"\n",
"\n",
"# Open dataset with Xarray\n",
"xrds = xr.open_dataset(data_path_structured)\n",
"xrds"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "c641c1b3-c397-4856-91b5-95b4b3c9a3df",
"metadata": {},
"outputs": [
{
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"</style><pre class='xr-text-repr-fallback'><xarray.DataArray 'psi' (lat: 45, lon: 80)> Size: 29kB\n",
"[3600 values with dtype=float64]\n",
"Coordinates:\n",
" * lat (lat) int64 360B -90 -86 -82 -78 -74 -70 -66 ... 66 70 74 78 82 86\n",
" * lon (lon) float64 640B -180.0 -175.5 -171.0 ... 166.5 171.0 175.5\n",
"Attributes:\n",
" regrid_method: nearest_s2d</pre><div class='xr-wrap' style='display:none'><div class='xr-header'><div class='xr-obj-type'>xarray.DataArray</div><div class='xr-array-name'>'psi'</div><ul class='xr-dim-list'><li><span class='xr-has-index'>lat</span>: 45</li><li><span class='xr-has-index'>lon</span>: 80</li></ul></div><ul class='xr-sections'><li class='xr-section-item'><div class='xr-array-wrap'><input id='section-7da5a33b-02c0-45ec-817d-71735b070edb' class='xr-array-in' type='checkbox' checked><label for='section-7da5a33b-02c0-45ec-817d-71735b070edb' title='Show/hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-array-preview xr-preview'><span>...</span></div><div class='xr-array-data'><pre>[3600 values with dtype=float64]</pre></div></div></li><li class='xr-section-item'><input id='section-80dcf553-5a05-4e39-8e29-61a486db3dc6' class='xr-section-summary-in' type='checkbox' checked><label for='section-80dcf553-5a05-4e39-8e29-61a486db3dc6' class='xr-section-summary' >Coordinates: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-var-name'><span class='xr-has-index'>lat</span></div><div class='xr-var-dims'>(lat)</div><div class='xr-var-dtype'>int64</div><div class='xr-var-preview xr-preview'>-90 -86 -82 -78 -74 ... 74 78 82 86</div><input id='attrs-b2af44dd-25ea-45e9-825c-3de48c916d16' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-b2af44dd-25ea-45e9-825c-3de48c916d16' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-a2100fa5-da28-4a4c-acc4-a0a6c19d4455' class='xr-var-data-in' type='checkbox'><label for='data-a2100fa5-da28-4a4c-acc4-a0a6c19d4455' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>units :</span></dt><dd>degrees_north</dd></dl></div><div class='xr-var-data'><pre>array([-90, -86, -82, -78, -74, -70, -66, -62, -58, -54, -50, -46, -42, -38,\n",
" -34, -30, -26, -22, -18, -14, -10, -6, -2, 2, 6, 10, 14, 18,\n",
" 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 74,\n",
" 78, 82, 86])</pre></div></li><li class='xr-var-item'><div class='xr-var-name'><span class='xr-has-index'>lon</span></div><div class='xr-var-dims'>(lon)</div><div class='xr-var-dtype'>float64</div><div class='xr-var-preview xr-preview'>-180.0 -175.5 ... 171.0 175.5</div><input id='attrs-74af322b-6a6f-4909-960b-82fec43a7e4f' class='xr-var-attrs-in' type='checkbox' ><label for='attrs-74af322b-6a6f-4909-960b-82fec43a7e4f' title='Show/Hide attributes'><svg class='icon xr-icon-file-text2'><use xlink:href='#icon-file-text2'></use></svg></label><input id='data-d13e441c-05fa-435f-addf-fd9dbcbb19e4' class='xr-var-data-in' type='checkbox'><label for='data-d13e441c-05fa-435f-addf-fd9dbcbb19e4' title='Show/Hide data repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-var-attrs'><dl class='xr-attrs'><dt><span>units :</span></dt><dd>degrees_east</dd></dl></div><div class='xr-var-data'><pre>array([-180. , -175.5, -171. , -166.5, -162. , -157.5, -153. , -148.5, -144. ,\n",
" -139.5, -135. , -130.5, -126. , -121.5, -117. , -112.5, -108. , -103.5,\n",
" -99. , -94.5, -90. , -85.5, -81. , -76.5, -72. , -67.5, -63. ,\n",
" -58.5, -54. , -49.5, -45. , -40.5, -36. , -31.5, -27. , -22.5,\n",
" -18. , -13.5, -9. , -4.5, 0. , 4.5, 9. , 13.5, 18. ,\n",
" 22.5, 27. , 31.5, 36. , 40.5, 45. , 49.5, 54. , 58.5,\n",
" 63. , 67.5, 72. , 76.5, 81. , 85.5, 90. , 94.5, 99. ,\n",
" 103.5, 108. , 112.5, 117. , 121.5, 126. , 130.5, 135. , 139.5,\n",
" 144. , 148.5, 153. , 157.5, 162. , 166.5, 171. , 175.5])</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-2ce4ec04-4388-439c-bb09-ef8da6427a69' class='xr-section-summary-in' type='checkbox' ><label for='section-2ce4ec04-4388-439c-bb09-ef8da6427a69' class='xr-section-summary' >Indexes: <span>(2)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><ul class='xr-var-list'><li class='xr-var-item'><div class='xr-index-name'><div>lat</div></div><div class='xr-index-preview'>PandasIndex</div><div></div><input id='index-d81da970-a206-46cd-b784-9c77daf6b87f' class='xr-index-data-in' type='checkbox'/><label for='index-d81da970-a206-46cd-b784-9c77daf6b87f' title='Show/Hide index repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-index-data'><pre>PandasIndex(Index([-90, -86, -82, -78, -74, -70, -66, -62, -58, -54, -50, -46, -42, -38,\n",
" -34, -30, -26, -22, -18, -14, -10, -6, -2, 2, 6, 10, 14, 18,\n",
" 22, 26, 30, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 74,\n",
" 78, 82, 86],\n",
" dtype='int64', name='lat'))</pre></div></li><li class='xr-var-item'><div class='xr-index-name'><div>lon</div></div><div class='xr-index-preview'>PandasIndex</div><div></div><input id='index-c85419cc-326f-4f1a-802d-0d587afd058a' class='xr-index-data-in' type='checkbox'/><label for='index-c85419cc-326f-4f1a-802d-0d587afd058a' title='Show/Hide index repr'><svg class='icon xr-icon-database'><use xlink:href='#icon-database'></use></svg></label><div class='xr-index-data'><pre>PandasIndex(Index([-180.0, -175.5, -171.0, -166.5, -162.0, -157.5, -153.0, -148.5, -144.0,\n",
" -139.5, -135.0, -130.5, -126.0, -121.5, -117.0, -112.5, -108.0, -103.5,\n",
" -99.0, -94.5, -90.0, -85.5, -81.0, -76.5, -72.0, -67.5, -63.0,\n",
" -58.5, -54.0, -49.5, -45.0, -40.5, -36.0, -31.5, -27.0, -22.5,\n",
" -18.0, -13.5, -9.0, -4.5, 0.0, 4.5, 9.0, 13.5, 18.0,\n",
" 22.5, 27.0, 31.5, 36.0, 40.5, 45.0, 49.5, 54.0, 58.5,\n",
" 63.0, 67.5, 72.0, 76.5, 81.0, 85.5, 90.0, 94.5, 99.0,\n",
" 103.5, 108.0, 112.5, 117.0, 121.5, 126.0, 130.5, 135.0, 139.5,\n",
" 144.0, 148.5, 153.0, 157.5, 162.0, 166.5, 171.0, 175.5],\n",
" dtype='float64', name='lon'))</pre></div></li></ul></div></li><li class='xr-section-item'><input id='section-b9c2cf6f-0da0-4c05-a418-20906d43c9db' class='xr-section-summary-in' type='checkbox' checked><label for='section-b9c2cf6f-0da0-4c05-a418-20906d43c9db' class='xr-section-summary' >Attributes: <span>(1)</span></label><div class='xr-section-inline-details'></div><div class='xr-section-details'><dl class='xr-attrs'><dt><span>regrid_method :</span></dt><dd>nearest_s2d</dd></dl></div></li></ul></div></div>"
],
"text/plain": [
"<xarray.DataArray 'psi' (lat: 45, lon: 80)> Size: 29kB\n",
"[3600 values with dtype=float64]\n",
"Coordinates:\n",
" * lat (lat) int64 360B -90 -86 -82 -78 -74 -70 -66 ... 66 70 74 78 82 86\n",
" * lon (lon) float64 640B -180.0 -175.5 -171.0 ... 166.5 171.0 175.5\n",
"Attributes:\n",
" regrid_method: nearest_s2d"
]
},
"execution_count": 8,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"xrda = xrds[\"psi\"]\n",
"xrda"
]
},
{
"cell_type": "markdown",
"id": "833b03b9-f49e-4601-8127-7af61dc2b640",
"metadata": {},
"source": [
"<div class=\"admonition alert alert-info\">\n",
" <p class=\"admonition-title\" style=\"font-weight:bold\">See also:</p>\n",
" For further information, please visit the \n",
" <a href=\"https://uxarray.readthedocs.io/en/latest/user-guide/data-structures.html#inheritance-from-xarray\">UXarray Inheritance from Xarray documentation</a>\n",
"</div>"
]
},
{
"cell_type": "markdown",
"id": "53694653-47d8-41c1-a7da-177af780b292",
"metadata": {},
"source": [
"## What is next?\n",
"The next section is the final section in this chapter that will provide information about how to operate spatial selection methods on ``UxDataArray``."
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
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"file_extension": ".py",
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