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This project established digital, 4-band orthoimagery services for Rock Co, Wisconsin as a part of the Wisconsin Regional Orthoimagery Consortium (WROC). |
| summary:
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This project established digital, 4-band orthoimagery services for Rock Co, Wisconsin as a part of the Wisconsin Regional Orthoimagery Consortium (WROC). |
| accessInformation:
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Rock County Land Records |
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| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This mosaic dataset is a combination of two 4-band orthoimagery acquisitions conducted by Ayres Associates as part of WROC.</SPAN></P><P><SPAN>The six-inch pixel resolution aerial imagery was collected on March 11th using a Leica Geosystems DMC III 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 feet RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant orthoimagery was rectified to a DEM created from LiDAR collected in 2020. Orthoimagery was delivered in PLSS section GeoTiffs, MrSID tiles, and a project-wide MrSID mosaic. The orthoimagery was delivered according to a PLSS section tile schematic. The project area covers approximately 736 square miles.</SPAN></P><P><SPAN>The 3-inch pixel resolution aerial imagery along the central corridor was collected on March 15th and 20th using a Microsoft Vexcel UltraCam Eagle M3 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 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 existing LiDAR acquired in 2020. Orthoimagery was delivered in PLSS quarter-section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The project area covers approximately 180 square miles.</SPAN></P><P><SPAN>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 Rock Co in 2024 to provide consistent deliverable products and accuracy standards for each of the participating entities</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The maps and data provided are for informational and advisory purposes only. Rock County makes no warranty, expressed or implied; including warranties of merchantability and fitness for a particular purpose. Determining fitness of use for this data is the sole responsibility of the user. Rock County Land Information Office disclaims accuracy and advises that if specific and precise accuracy is required, it should be determined by certified maps, surveys, plats, or other official means. Rock County will not be responsible for any damages, which result from third party use of the data and maps herein, or for any use, which ignores this warning. The responsibility for data updates resides with the recipient, not the supplier.</SPAN></SPAN></P></DIV></DIV></DIV> |
| catalogPath:
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| title:
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Ortho 2024 Combined |
| type:
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Image Service |
| url:
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https://gis-server.win.lan.rockco:6443/arcgis |
| tags:
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["Rock Co","Wisconsin","Wisconsin Regional Orthoimagery Consortium (WROC)","6\"","3\"","six-inch","3-inch 2024"] |
| culture:
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en-US |
| name:
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Ortho_2024_Combined |
| guid:
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| spatialReference:
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NAD_1983_HARN_WISCRS_Rock_County_Feet |