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This annual digital ortho effort is implemented and administered by the Loudoun County Office of Mapping and Geographic Information. While primarily developed to capture annual base planimetric, environmental, and topographic updates throughout the County, the backdrop image can also serve as a reference layer for GIS analysis, Computer-aided Dispatching and E-911 services, Staff planning and development, historical record in land use/land cover change, and has the potential for use in many other public service projects. |
| summary:
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This annual digital ortho effort is implemented and administered by the Loudoun County Office of Mapping and Geographic Information. While primarily developed to capture annual base planimetric, environmental, and topographic updates throughout the County, the backdrop image can also serve as a reference layer for GIS analysis, Computer-aided Dispatching and E-911 services, Staff planning and development, historical record in land use/land cover change, and has the potential for use in many other public service projects. |
| accessInformation:
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"March 2018 Photography flown by the Sanborn Map Company, Colorado Springs, CO." "Digital Orthophotography compiled by Sanborn Map Company, Colorado Springs, CO" |
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16753.5002748069 |
| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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Loudoun County annually obtains leaf-off, aerial imagery in the spring. Since 2004, the County has utilized this imagery to support the development of an annual digital orthophoto base. In 2018, the imagery was captured with a Vexcel Ultracam Eagle digital camera, in 4-band (R,G,B, and NIR) format. These files contain 1-foot ground-resolution, 8-bit, 4-band orthorectified aerial image map products in GeoTIFF version 6.0 file format. GeoTIFF files are uncompressed raster images complete with TFW coordinate information. The aerial imagery project encompasses the entire land area of the County of Loudoun, VA. Images were flown during leaf-off conditions and cover 5000' by 5000' and are tiled according to the VBMP 200-scale gridding schema (Virginia Geographic Information Network). |
| licenseInfo:
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Data was generated for use by Loudoun County and are available to the public. This image data has been developed using procedures designed to produce data to National Standard for Spatial Data Accuracy (NSSDA) and is intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data. Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user. |
| catalogPath:
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| title:
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COLOR_2018 |
| type:
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Image Service |
| url:
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https://agsimage-a1.prod.loudoun.local:6443/arcgis/admin |
| tags:
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["Emergency management","Economic development","Environment","Wetlands","imageryBaseMapsEarthCover","USA","Infrastructure or ground transportation","County","Loudoun","Land use or land cover","Planimetric","Tourism or recreation","Miscellaneous","Commonwealth of Virginia","Digital Orthophotography"] |
| culture:
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en-US |
| name:
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COLOR_2018 |
| guid:
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|
| minScale:
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3.43111685628045E7 |
| spatialReference:
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NAD_1983_HARN_StatePlane_Virginia_North_FIPS_4501_Feet |