Description: Ayres Associates provided Fond du Lac County, Wisconsin with digital, 4-band orthoimagery services in 2023 as part of WROC. The aerial imagery was collected on April 9th, 10th, and 11th using a Microsoft Vexcel UltraCam Eagle M3 sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.5 foot ground sample distance (GSD) orthoimagery to meet ASPRS Class II horizontal accuracy specifications at 1"=100' map scale. The 6-inch pixel orthoimagery was produced to meet or exceed a horizontal accuracy of 1.4 foot RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant ortho imagery was rectified to a DEM created from LiDAR acquired in 2018. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The orthoimagery was delivered according to a PLSS section tile schematic. The project area covers approximately 772 square miles, which is county-wide plus the area of Waupun in Dodge County. Supplemental Information: The Wisconsin Regional Orthoimagery Consortium (WROC) is a multi-entity group of county members and partners led by regional planning commissions (RPCs) and 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 Fond du Lac, County in 2023 to provide consistent deliverable products and accuracy standards for each of the participating entities.
Service Item Id: aa5ad06c026c4bfe8e30e52ad96d4326
Copyright Text: Ayres Associates, Fond du Lac County