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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. |
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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. |
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5000 |
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[] |
description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>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</SPAN></P></DIV></DIV></DIV> |
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catalogPath:
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title:
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Lakes |
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tags:
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["Planimetric Data","Hydrology / Dams / Lakes / Reservoirs / Rivers / Shoreline","land use or land cover","emergency management","miscellaneous","planimetric","economic development","environment","wetlands","infrastructure or ground transportation","tourism or recreation.","\\ Aerial Photography \\ Hydrology \\ Lakes \\ Rivers \\ Dams \\ Reservoirs"] |
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en-US |
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minScale:
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150000000 |
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