Resource provided by WisconsinView.
This project established digital, 4-band orthoimagery services for Crawford County, Wisconsin as part of the Wisconsin Regional Orthoimagery Consortium (WROC). Ayres Associates provided Crawford County, Wisconsin with digital, 4-band orthoimagery services in 2023 as part of WROC. The aerial imagery was collected on April 12th using a Leica Geosystems 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 ASPRS Class II horizontal accuracy specifications at 1 inch = 50 feet map scale. The 3-inch pixel orthoimagery was produced to meet or exceed a horizontal accuracy of 0.7 foot RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant orthoimagery was rectified to a DEM created from LiDAR collected in 2022. 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 599 square miles. 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 Crawford County in 2023 to provide consistent deliverable products and accuracy standards for each of the participating entities.