Home > About LIDAR


{About LIDAR}




Collecting LIDAR

Interpreting LIDAR

Coastlines Mapped

Getting LIDAR Data

Answers to LIDAR Questions

LIDAR Data Visualizations

ATM LIDAR Publications

graphic of Twin Otter collecting LIDAR
		data Light Detection and Ranging (LIDAR) is a remote sensing technology used to collect topographic data. This technology is being used by scientists at the National Oceanic and Atmospheric Administration (NOAA), United States Geological Survey (USGS), and NASA to document topographic changes along shorelines.

These data are collected with aircraft-mounted lasers capable of recording elevation measurements at a rate of 2,000 to 5,000 observations per second and have a vertical precision of 15 centimeters (6 inches). After a baseline data set has been created, follow-up flights can be used to detect shoreline changes.