Sun_Prairie_2020_orthimagery (ImageServer)

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Service Description: Ayres Associates provided Dane County, Wisconsin, with digital, 4-band orthoimagery of the Madison Metro Area in 2020 as part of FlyDane/WROC. The aerial imagery was collected on April 4th, 16th, 18th and 19th using a Microsoft Vexcel UltraCam Eagle sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.25 foot ground sample distance (GSD) orthoimagery to meet ASPRS Class II horizontal accuracy specifications at 1"=50' map scale. The 6-inch pixel orthoimagery was produced to meet or exceed a horizontal accuracy of 0.7 feet RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant orthoimagery was rectified to a DEM created from LiDAR collected in 2017. Orthoimagery was delivered in PLSS quarter-section GeoTiff and MrSID tiles and a project wide MrSID mosaic. Supplemental Information: FlyDane/WROC is a multi-entity group of county members and partners led by WROC representatives from Ayres Associates. The goal of the consortium is to build and sustain a multi-participant program to acquire digital orthoimagery and elevation data throughout Wisconsin. Orthoimagery was collected for the Madison Metro Area of Dane County in 2020 to provide consistent deliverable products and accuracy standards for each of the participating entities.

Name: Sun_Prairie_2020_orthimagery

Description: Ayres Associates provided Dane County, Wisconsin, with digital, 4-band orthoimagery of the Madison Metro Area in 2020 as part of FlyDane/WROC. The aerial imagery was collected on April 4th, 16th, 18th and 19th using a Microsoft Vexcel UltraCam Eagle sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.25 foot ground sample distance (GSD) orthoimagery to meet ASPRS Class II horizontal accuracy specifications at 1"=50' map scale. The 6-inch pixel orthoimagery was produced to meet or exceed a horizontal accuracy of 0.7 feet RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant orthoimagery was rectified to a DEM created from LiDAR collected in 2017. Orthoimagery was delivered in PLSS quarter-section GeoTiff and MrSID tiles and a project wide MrSID mosaic. Supplemental Information: FlyDane/WROC is a multi-entity group of county members and partners led by WROC representatives from Ayres Associates. The goal of the consortium is to build and sustain a multi-participant program to acquire digital orthoimagery and elevation data throughout Wisconsin. Orthoimagery was collected for the Madison Metro Area of Dane County in 2020 to provide consistent deliverable products and accuracy standards for each of the participating entities.

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