2020_Orthoimagery_Cache (MapServer)

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Service Description:

Ayres Associates provided Grant County, Wisconsin with digital, 4-band orthoimagery services in 2020 as part of WROC. The aerial imagery was collected on March 30th and April 4th and 5th using a Microsoft Vexcel UltraCam Eagle 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 newly acquired in 2020. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The project area covers approximately 1180 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 Grant County in 2020 to provide consistent deliverable products and accuracy standards for each of the participating entities.

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Description: Ayres Associates provided Grant County, Wisconsin with digital, 4-band orthoimagery services in 2020 as part of WROC. The aerial imagery was collected on March 30th and April 4th and 5th using a Microsoft Vexcel UltraCam Eagle 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 newly acquired in 2020. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The project area covers approximately 1180 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 Grant County in 2020 to provide consistent deliverable products and accuracy standards for each of the participating entities.

Service Item Id: c58d5c4c391c4f63bf56b3465d042728

Copyright Text: Land Information Office of Grant County, Wisconsin; Wisconsin Regional Orthoimagery Consortium (2020)

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Single Fused Map Cache: true

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Width: 256
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Compression Quality: 75.0
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Spatial Reference: PROJCS["NAD_1983_2011_WISCRS_Grant_Feet",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",794999.998],PARAMETER["False_Northing",0.033],PARAMETER["Central_Meridian",-90.8],PARAMETER["Scale_Factor",1.0000349452],PARAMETER["Latitude_Of_Origin",41.41111111111111],UNIT["Foot_US",0.3048006096012192]],VERTCS["VCS Name = NAVD88 height - Geoid12B (ftUS)|Datum Name = North American Vertical",VDATUM["North American Vertical Datum 1988"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["US survey foot",0.3048006096012192]]

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Storage Format: esriMapCacheStorageModeCompactV2
Packet Size: 128

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Full Extent:

Units: esriFeet

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

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Supports Datum Transformation: true

Child Resources: Info Dynamic Layer

Supported Operations: Export Map Identify QueryLegends QueryDomains Find EstimateExportTilesSize ExportTiles Return Updates