GEOID03

First created 12/24/2003. DRR.

Last updated 03/31/2006. DRR.

GEOID03 is a refined model of the geoid in the conterminous United States (CONUS), which supersedes the previous models GEOID90, GEOID93, GEOID96, and GEOID99. For GEOID03 heights range from a low of -50.01 meters (magenta) in the Atlantic Ocean to a high of 3.43 meters (red) in the Labrador Strait. However, these geoid heights are only reliable within CONUS due to the limited extents of the data used to compute it. GEOID03 models will not be created for other regions. Instead, new models will be created for all regions at a later date depending on improvements in data, modeling and techniques. Note that the GEOID03 file #7, which covers the coastal Lousiana, region, has been modified. It has been updated based on the most recent VTDP model for the region to better reflect the actual orthometric heights at the bench marks.

Information The Official NGS GEOID Page Readme file for GEOID03 Technical details Geophysics of the Geoid On-Line Papers The Geoid Research Page Acknowledgements Data Interactive GEOID03 computations Download GEOID03 Files Related Pages USGG2003 GEOID99 G99SSS GPS/bench mark data set in GEOID03 The NGSDEM99 1 arcsecond DEM Geoid Research Software Have a geoid question? Contact the Geoid Team

For more information contact NGS Information Services: by e-mail, or call (301) 713-3242, Monday-Friday, 7:00 AM - 4:30 PM eastern time. For questions about this page or downloading problems, contact the Webmaster.

Web site owner: National Geodetic Survey http://www.ngs.noaa.gov/GEOID/GEOID03/index.shtml Last Modified: Tuesday, 14-Jul-2009 17:56:36 EDT