January 28, 2009
2008 DC Orthophotography Now Available
The Office of the Chief Technology Officer provides aerial photography for the District of Columbia.
In May 2008, the District flew aerial photography of the city; DC GIS announces its release.
The District of Columbia GIS (DC GIS) program announces the release of aerial photography captured in May of 2008. The orthorectified photography is used to update the planimetric and topographic data for the District of Columbia. The 2008 orthophoto can be viewed in Google Earth and soon in both the DC Atlas and DC Guide web applications.
The planimetric project area covers the entire District of Columbia which is approximately 69 square miles. The digital imagery was used to create natural color digital orthophotography with 15 cm pixel resolution.
The orthophotography consists of 328 ortho tiles captured at a scale of 1 to 2400. The tile dimensions are 800 by 800 meters. A corresponding MrSid image was created by mosaicking the 328 ortho tiles together and compressing the image using an 80 to 1 compression ratio.
Requests for the 2008 Orthophoto, and additional data, should be directed to DC GIS Program.
The National's Baseball Stadium is one of the many new features captured in the 2008 Othophotography.