{
  "cells": [
    {
      "cell_type": "markdown",
      "metadata": {
      },
      "source": [
        "<a href=\"https://githubtocolab.com/gee-community/geemap/blob/master/examples/notebooks/114_dynamic_world.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open in Colab\"/></a>\n",
        "\n",
        "**Creating near real-time global 10-m land cover maps with geemap and Dynamic World**\n",
        "\n",
        "- App: <https://www.dynamicworld.app>\n",
        "- App2: <https://earthoutreach.users.earthengine.app/view/dynamicworld>\n",
        "- Paper: <https://doi.org/10.1038/s41597-022-01307-4>\n",
        "- Model: <https://github.com/google/dynamicworld>\n",
        "- Training data: <https://doi.pangaea.de/10.1594/PANGAEA.933475>\n",
        "- Data: <https://developers.google.com/earth-engine/datasets/catalog/GOOGLE_DYNAMICWORLD_V1>\n",
        "- JavaScript tutorial: <https://developers.google.com/earth-engine/tutorials/community/introduction-to-dynamic-world-pt-1>"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "import ee\n",
        "import geemap"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "Map = geemap.Map()\n",
        "Map.add_basemap('HYBRID')\n",
        "Map"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "# Set the region of interest by simply drawing a polygon on the map\n",
        "region = Map.user_roi\n",
        "if region is None:\n",
        "    region = ee.Geometry.BBox(-89.7088, 42.9006, -89.0647, 43.2167)\n",
        "\n",
        "Map.centerObject(region)"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "# Set the date range\n",
        "start_date = '2021-01-01'\n",
        "end_date = '2022-01-01'"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "# Create a Sentinel-2 image composite\n",
        "image = geemap.dynamic_world_s2(region, start_date, end_date)\n",
        "vis_params = {'bands': ['B4', 'B3', 'B2'], 'min': 0, 'max': 3000}\n",
        "Map.addLayer(image, vis_params, 'Sentinel-2 image')"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "# Create Dynamic World land cover composite\n",
        "landcover = geemap.dynamic_world(region, start_date, end_date, return_type='hillshade')\n",
        "Map.addLayer(landcover, {}, 'Land Cover')"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "tags": []
      },
      "outputs": [],
      "source": [
        "# Add legend to the map\n",
        "Map.add_legend(title=\"Dynamic World Land Cover\", builtin_legend='Dynamic_World')\n",
        "Map"
      ]
    },
    {
      "cell_type": "markdown",
      "metadata": {
      },
      "source": [
        "![](https://i.imgur.com/GEzsSii.png)"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
      },
      "outputs": [],
      "source": [
        "# Save Dynamic World class data in GeoTIFF format\n",
        "output_path = 'landcover.tif'\n",
        "landcover = geemap.dynamic_world(region, start_date, end_date, return_type='class')\n",
        "geemap.ee_export_image(landcover, filename=output_path, scale=10, region=region, file_per_band=False)"
      ]
    }
  ],
  "metadata": {
    "colab": {
      "provenance": []
    },
    "kernelspec": {
      "display_name": "Python 3",
      "language": "python",
      "name": "python3"
    }
  },
  "nbformat": 4,
  "nbformat_minor": 5
}