USGG2003

First created 12/24/2003. DRR.

Last updated 12/30/2003. DRR.

USGG2003 is a gravimetric geoid that served as the basis for GEOID03 within the conterminous United States only. USGG2003 is very similar to G99SSS differing only in the use of GSFC00.1 instead of KMS98 for the offshore gravity field. The result of changing the altimeter-implied FAGA data was to significantly improve the gravimetric geoid primarily along the East Coast and especially in Florida (a reduction from 40 to 30 cm in misfit). This 25% improvement was determined by comparison with GPSBM2003 point data. USGG2003 uses the same data format and spacing as G99SSS and can easily swapped in software applications.

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

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