Summary Statement:

This metadata summary applies exclusively to the data as it appears in this Loudoun County intranet/internet mapping application. To see the fully FGDC compliant version of this metadata click here.

Abstract:

These files contain 1-foot GSD high-resolution orthorectified aerial image map products in GeoTIFF version 6.0 file format. GeoTIFF files are uncompressed raster images complete with coordinate information. The VBMP project encompasses the entire land area of the Commonwealth of Virginia. The State boundary is buffered by 1000 feet. Coastal areas of the State bordering the Atlantic Ocean or the Chesapeake Bay are buffered by 1000 feet or the extent of man-made features extending from shore. 1-foot resolution digital orthoimagery was developed over the majority of urban/suburban areas of the Commonwealth covering approximately 7,167 square miles and 2-foot resolution digital orthoimagery was developed over the rural areas of the Commonwealth covering approximately 31,923 square miles as defined by VGIN. 6-inch resolution digital orthoimagery was developed in limited urban areas covering approximately 1000 square miles.

Purpose:

In October of 2001 the Commonwealth of Virginia began work on an initiative termed the Virginia Base Mapping Program (VBMP), to develop digital orthoimagery for the entire land base of the Commonwealth. The VBMP was funded by the Public Safety Services Board to support statewide implementation of Phase II wireless E911 (E911 for Cell Phones) by establishing one consistent, accurate, foundational base map upon all local government and many regional, state and federal spatial data applications could be built in order to establish and maintain an efficient statewide spatial information infrastructure. The VBMP was implemented and administered by the Virginia Geographic Information Network, a division of the Department of Technology Planning

Supplemental Information:

Data are stored in the corporate ArcSDE Geodatabase as a raster feature class. SDE geotabase imagery is available in the County's GIS, whereas copies of source files are provided for public distribution.

Maintenance and Update Frequency:

None planned

Completeness Report:

The project consisted of a total of 4806 total images in the Virginia North State Plane Zone for 1' = 200' scale imagery.

Use Constraints

The VBMP data are property of the Commonwealth of Virginia, copyright 2002. Distribution of any of these data to anyone not licensed by the Commonwealth is strictly prohibited.

Data Owner:

Loudoun County, VA, Office of Mapping and Geographic Information