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This project established digital, 4-band orthoimagery for the Village of Oak Brook, Illinois in 2024 as part of the Illinois GIS Consortium (GISC). |
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This project established digital, 4-band orthoimagery for the Village of Oak Brook, Illinois in 2024 as part of the Illinois GIS Consortium (GISC). |
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Ayres Associates provided the Village of Oak Brook, Illinois with digital, 4-band orthoimagery services as part of the Illinois GISC. The aerial imagery was collected on March 10th using a Leica Geosystems DMCIII sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.25 foot ground sample distance (GSD) orthoimagery to meet the National Map Accuracy Standards (NMAS) at 1"=50' map scale. The 3-inch pixel orthoimagery was produced to meet or exceed NMAS requirements, stating that 90% of all test points be within 1/30th of an inch at mapping scale. Resultant orthoimagery was rectified to a DEM surface 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 quarter-section tile schematic. Supplemental Information: The Illinois GIS Consortium (GISC) 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). |
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Not to be used for purposes other than those strictly outlined in the 2024 Oak Brook, Illinois GISC program. |
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3911283.tif |
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["digital","4-band","orthoimagery","3-inch"] |
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en-US |
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150000000 |
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