
- This map is being used to represent the location and size of two gangs in Compton California.
- www.streetgangs.com
- A Digital Orthophoto Quadrangle (DOQ) is a computer-generated image of an aerial photograph in which the image displacement caused by terrain relief and camera tilt has been removed. The DOQ combines the image characteristics of the original photograph with the georeferenced qualities of a map.
- The map above is a DOQQ of the Washington DC area. These types of maps seem very easy to see details.
- http://seamless.usgs.gov/website/seamless/products/1doqq.asp
- Infrared Aerial photos are to create false color imagery helps delineate surface features. Which in this map you can clearly see it does just this.
- This is the Tarpon Bay Keys, Florida, as depicted on topographic sheet and then in a 1999 false color infra-red aerial photograph. The two images are not to equal scales. I really liked this display, because you can actually see the differences with the infrared.
- http://sofia.usgs.gov/publications/ofr/2006-1126/vegetation.html