USGS High Resolution Orthoimagery
High resolution orthorectified images combine the image characteristics of an aerial photograph with the geometric qualities of a map. An orthoimage is a uniform-scale image where corrections have been made for feature displacement such as building tilt and for scale variations caused by terrain relief, sensor geometry, and camera tilt. A mathematical equation based on ground control points, sensor calibration information, and a digital elevation model is applied to each pixel to rectify the image to obtain the geometric qualities of a map.
A digital orthoimage may be created from several photographs mosaicked to form the final image. The source imagery may be black-and-white, natural color, or color infrared with a pixel resolution of 1-meter or finer. With orthoimagery, the resolution refers to the distance on the ground represented by each pixel.
Complete Metadata
| bureauCode |
[ "026:00" ] |
|---|---|
| identifier | C1220567548-USGS_LTA |
| issued | 2019-09-20 |
| landingPage | https://cmr.earthdata.nasa.gov:443/search/concepts/C1220567548-USGS_LTA.html |
| language |
[ "en-US" ] |
| programCode |
[ "026:001" ] |
| spatial | -180.0 -90.0 180.0 90.0 |
| temporal | 1970-01-01T00:00:00Z/2022-01-17T00:00:00Z |
| theme |
[ "geospatial" ] |
