Data
CHARTS Orthomosaics
Provided by the U.S. Army Corps of Engineers
The National Coastal Mapping program is designed to provide high-resolution elevation and imagery data along U.S. shorelines on a recurring basis. The program uses the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system that integrates topographic and bathymetric lidar sensors, a digital camera, and a hyperspectral scanner on a single remote sensing platform for use in coastal mapping and charting activities. One derived data set from CHARTS is orthomosaics, which are created by ortho-rectifying and mosaicing individual images into mapped "boxes" that extend approximately five kilometers (km) along the shore.
Data Specifications
- Area of Coverage: Over 6,500 km of shorelines in the regions of the Gulf and Atlantic coasts and the Great Lakes, as well as connecting rivers and streams.
- Date(s) Available: Range from 2004 to present
- Format: GeoTIFF
- Resolution: Approximately 20-centimeter pixel resolution
- Accuracy: The horizontal accuracy is better than +/- 0.75 meters. The vertical accuracy is better than +/- 0.20 meters
Example of Orthomosaics
