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This project established digital, color orthoimagery for the Village of Northfield, Illinois as part of the Illinois GIS Consortium (ILGISC). |
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This project established digital, color orthoimagery for the Village of Northfield, Illinois as part of the Illinois GIS Consortium (ILGISC). |
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1126.58012721499 |
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Ayres Associates provided Village of Northfield, Illinois with digital, color orthoimagery services in 2017 as part of ILGISC. The aerial imagery was collected on March 3rd using a Leica DMC III sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.25 foot ground sample distance (GSD) orthoimagery to meet National Map Accuracy Standards horizontal accuracy specifications at 1" = 50' map scale. The horizontal accuracy meets or exceeds 1.0 foot RMSE using the National Standard for Spatial Data Accuracy (NSSDA) standards. Resultant orthoimagery was rectified to a DEM created from existing LiDAR data. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project-wide MrSID mosaic. The orthoimagery was delivered according to a four section tile schematic. Supplemental Information: The Illinois GIS Consortium is an organization of Chicago-area communities unified by a common goal: to share resources, information, staffing, and technology so that municipalities can optimize the value of geographic information systems (GIS).</SPAN></P></DIV></DIV></DIV> |
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Not to be used for purposes other than those strictly outlined in the 2017 ILGISC Village of Northfield Orthophotography Initiative. |
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| title:
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Northfield_2017_sid |
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Image Service |
| url:
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https://arcgis-01.ad.gha-engineers.com:6443/arcgis |
| tags:
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["digital","Village of Northfield","orthoimagery","Cook County","color","3-inch","Illinois"] |
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en-US |
| name:
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Northfield_2017_sid |
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288404.512567037 |
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NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US |