Service Description: All lakes and ponds in Westchester County that are 10 to 100 acres in size. Joined with taxmap data.
The aerial photography and creation of the subsequent planimetric data was executed to capture the existing ground conditions at a specific point in time for the purpose of GIS analysis. A GIS is a system of computer software, hardware, and data that allows a user to manipulate, analyze, and present information that is tied to a spatial location. GIS technology is used in scientific investigations, resource management, development planning, and many other applications that require analysis of spatial data. Planimetric base map data along with digital orthophotography typically provide an accurate base for digitally representing geographic features upon which the GIS is built.
Westchester County Geographic Information Systems (GIS) develops, maintains and distributes digital data for Westchester County, New York. County GIS staff also supports GIS applications and programs in both county and local governments.
Service ItemId: fea1246d155c440c9211fdc1704deb54
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
Supports applyEdits with GlobalIds: False
Supports Shared Templates: True
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Description: This dataset covers the geographic area of Westchester County, New York. Dataset contains planimetric base map data for lakes and ponds greater than one half acre in size, streams and rivers that are greater than 10' in width and reservoir water bodies. The source for the imagery is aerial photography acquired in April 2023. The planimetric data was originally compiled from aerial imagery collected in the year 2004. In 2023, new aerial imagery was acquired over the county of Westchester and all planimetric data was updated at that time. This layer contains the polygons delineating hydrologic features. The data was photogrammetrically stereo-compiled to North American Datum 1983; New York State Plane East Zone.
Westchester County
Spatial Reference: 102715 (2260)
Initial Extent:
XMin: 581225.361341284
YMin: 735109.1529332
XMax: 911229.256518283
YMax: 910730.037742741
Spatial Reference: 102715 (2260)
Full Extent:
XMin: 638892.149883594
YMin: 757970.919977188
XMax: 769015.030713428
YMax: 915148.905161276
Spatial Reference: 102715 (2260)
Units: esriFeet
Child Resources:
Info
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Supported Operations:
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