# Aerial Imagery
Geometry Type: raster<br><br>![image](https://github.com/CityOfNewYork/nyc-geo-metadata/blob/main/Images/AerialImagery.PNG)

### Table of Contents<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[**1. Identification**](#1-identification)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[**2. Data Quality and Specifications**](#2-data-quality-and-specifications)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
## 1. Identification
---------------------------------------------
|     |     |
| --- | --- |
**Purpose** |Historical imagery was aquired from a variety of sources. Since 1996, NYC OTI has captured orthophotography. Starting in 2004, aerial imagery has been captured on a 2 year cycle. These imagery provide: a basis for the planimetric updates; a visual record of the City at specific intervals; a visual base for capturing and recording additional spatial data; and allow for a visual analysis of the City.
**Description** |Raster file of vertical aerial imagery covering New York City. Imagery is captured every 2 years during spring/summer months and corrected through computer processes to remove distortions caused by elevation changes and camera angles.
**Source(s)** |[New York State Statewide Digital Orthoimagery Program](https://gis.ny.gov/orthoimagery)
**Publication Dates** |**Data**: See Data Specifications for specific capture information<br>**Last Update**: 2022<br>**Update Frequency**: Aerial imagery has been captured every 2 years since 2004. 
**Available Formats** | Web Map Tile Service (WMTS) 
**Use Limitations** |CC BY 4.0. See [Terms of Use](https://creativecommons.org/licenses/by/4.0/legalcode)
**Access Rights** |Public
**Public Links** |[2024 Orthoimagery on NYCMapHub](https://nycmaps-nyc.hub.arcgis.com/maps/nyc::nyc-orthos-2024/about)
**Links** |[Now & Then Web Application](https://maps.nyc.gov/then&now/)<br>[2024 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=423f15185bd04f8dad8d99fba736772f)<br>[2022 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=75b225ab7c8c402f85de74f7883d62a0)<br>[2020 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=cb5571a887b945aa873cb3b1ef489d57)<br>[2018 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=b79e60a9686042debae52e069764a286)<br>[2016 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=a6d81617ea674d0fa29510faae2252ad)<br>[2014 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=922db9c671974e7986c5338e0bd6ba4c)<br>[2012 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=bb9a39d9d9be4b30ac66d283246f1daf)<br>[2010 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=cec6905f03b947f8824be81e45d1992b)<br>[2008 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=4a5eb2107c7c479f83ba56e427b75781)<br>[2006 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=4469a5bba7fb42458f4b9c8064062965)<br>[2004 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=4de7fd9b3a1d47179407350de8265279)<br>[2001-2002 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=e901064d06b747838ee082520dcae2ff)<br>[1996 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=bf7f000f52ad405bb49a55b578d7a2ee)<br>[1951 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=bca6c3f866f844b490925cc9c26d2e40)<br>[1924 Orthoimagery](https://nyc.maps.arcgis.com/home/item.html?id=afbb5db6b3fd494384357923e6c72622)
**Tags** |imagery, oti, doitt, gis, ortho, aerial, gis
## 2. Data Quality and Specifications
---------------------------------------------
|     |     |
| --- | --- |
**Horizontal Coordinate System** |**Collection**: New York State Plane Coordinates, Long Island East Zone, NAD83, US foot ([epsg:2263](https://spatialreference.org/ref/epsg/2263/) or [epsg:6539](https://spatialreference.org/ref/epsg/6539/))<br>**Published**: Web Mercator ([epsg:3857](https://spatialreference.org/ref/epsg/3857/))

 | Year | Resolution | Coverage | Dates of Capture | Product Details | Color Infrared | 
| -- | -- | -- | -- | -- | -- |
|1924|Unknown|New York City|Unknown|Acquired from the Department of City Planning. Manually georeferenced using visible locations between the 1951 images and current orthophotography.|No
|1951|Unknown|New York City|Unknown|Acquired from the Department of Records Municipal Archives. Manually georeferenced using visible locations between the 1951 images and current orthophotography.|No
|1996|1'|New York City|April: 1" = 800', entire city <br> June: 1"=1000', Manhattan||No
|2001|6''|Partial (Manhattan, Staten Island)|April 14: 1”=800’ – used for plan/topo update in Manhattan and Staten Island<br>July 3, & July 21:  1”=1000'– used for Manhattan orthos||No
|2002|6''|Partial (Bronx, Brooklyn, Queens)|April 4: 1"=800'  – used for plan/topo update for Bronx/Brooklyn/Queens||No
|2004|6''|New York City|April 19-20: Staten Island<br>April 29: Manhattan (2/3)<br>April 30: Manhattan (1/3)<br>April 24: Bronx, Brooklyn, Queens (2/3)<br>April 25: Bronx, Brooklyn, Queens (2/3)<br>May 4: Bronx, Brooklyn, Queens – re-flight of rejected flight strips|Selective true orthoimagery. Manhattan full true orthoimagery;  Bronx, Brooklyn, Queens, Staten Island true orthos for buildings greater than six stories.|No
|2006|6''|New York City|April: Bronx, Brooklyn, Queens, Staten Island <br> June: Manhattan|Selective true orthoimagery. Manhattan full true orthoimagery;  Bronx, Brooklyn, Queens, Staten Island true orthos for buildings greater than six stories.|No
|2008|6''|New York City|March 10 - May 14: Bronx, Brooklyn, Queens, Staten Island <br>June: Manhattan|Selective true orthoimagery. Manhattan full true orthoimagery;  Bronx, Brooklyn, Queens, Staten Island true orthos for buildings greater than five stories.|Yes
|2010|6''|New York City|April 1 - April 10: Bronx, Brooklyn, Queens, Staten Island <br>June 15: Manhattan|Selective true orthoimagery. Manhattan full true orthoimagery;  Bronx, Brooklyn, Queens, Staten Island true orthos for buildings greater than five stories.|Yes
|2012|6''|New York City|March 30 - April 6: Bronx, Brooklyn, Queens, Staten Island <br>June 15 -16 and June 20: Manhattan|Selective true orthoimagery. Manhattan full true orthoimagery;  Bronx, Brooklyn, Queens, Staten Island true orthos for buildings greater than five stories.|Yes
|2014|6''|New York City|April 1 - April 3: Bronx, Brooklyn, Queens, Staten Island <br>April 25: Water <br>June 1: Manhattan|Full true orthoimagery|Yes
|2016|6''|New York City|March 26 - April 5: Bronx, Brookyln, Manhattan, Queens, Staten Island|Full true orthoimagery|Yes
|2018|6''|New York City|April 14 - May 2: Bronx, Brooklyn, Manhattan, Queens, Staten Island|Full true orthoimagery|Yes
|2020|6''|New York City|March 21 - April 11: Bronx, Brooklyn, Manhattan, Queens, Staten Island|Full true orthoimagery|Yes
|2022|6''|New York City|March 16 - March 30: Bronx, Brooklyn, Manhattan, Queens, Staten Island|Full true orthoimagery|Yes
|2024|6''|New York City|March 14 - March 24: Bronx, Brooklyn, Manhattan, Queens, Staten Island|Full true orthoimagery|Yes