Virginia Orthophoto base map
Virginia base mapping program
On January 29, 2002, the Commonwealth contracted with VARGIS LLC. of Herndon, Virginia to produce full color, leaf-off, digital orthophotography for the entire land base of Virginia. VARGIS LLC and their subcontractors successfully captured aerial imagery for the entire state of Virginia, over 27,000 frames in 6 weeks time ending in April 2002.
Va Tech library has these statewide products:
- 1:4,800 scale (2' resolution) in rural areas
- 1:2,400 scale (1' resolution) in urban and suburban areas and
- 1:1,200 scale (½' resolution) in areas where localities choose the option to purchase higher accuracy product.
- 1 - Meter Statewide MrSID
- Statewide Digital Terrain Models (DGN)
- Index Grids for the above scales
Information and description of the products listed above can be obtained from the VBMP Handbook. Examples of the imagery can be accessed from VGIN Product Sample Imagery page. Indexes can be downloaded from the Va Tech Library site.
Metadata
- Metadata for 6 inch resolution (100 Scale, 1:1,200) Grid Shapefile
- Metadata for 1 foot resolution (200 Scale, 1:2,400) Grid Shapefile
- Metadata for 2 foot resolution (400 Scale, 1:4,800) Grid Shapefile
- Metadata for the Digital Terrain Models (DTM) - (100 Scale) Grid Shapefile (South) & (North) Zones, (200 Scale) Grid Shapefile (South) & (North) Zones & (400 Scale, 1:4,800) Grid Shapefile (South) & (North) Zones
During the Spring of 2003 the Virginia Geographic Information Network (VGIN) delivered to each city and county in the Commonwealth a DVD set of Digital Orthophotography and Digital Terrain Model (DTM) covering the county and a minimum of 1,000 feet surrounding the county/city.
In April 2004 the digital orthophotography and digital terrain model for the entire Commonwealth was made available for researchers at Virginia Tech through the VT-GIS Data Center, University Libraries.
Data is made available to VT community by contacting Bruce Obenhaus (phone: 231-6181, email: obenhaus@vt.edu) or Ed Brooks (phone:231-9225, email gisdata@vt.edu) of the VT-GIS Data Center.
