In this video, we explore the history of geodetic datums in the United States, and how they were established at a national level to assure consistency across mapping applications.

For more information on geodetic datums, visit http://www.geodesy.noaa.gov/.

For more information and a gallery of reusable resources from this video see https://www.meted.ucar.edu/training_m....
See COMET's MetEd website for hundreds of other geoscience training resources: http://www.meted.ucar.edu.