Google Earth Community: GRACE Gravity Anomaly Model

GRACE, twin satellites launched in March 2002, are making detailed measurements of Earth's gravity field which will lead to discoveries about gravity and Earth's natural systems. These discoveries could have far-reaching benefits to society and the world's population. The GGM02 model is based on the analysis of 363 days of GRACE in-flight data, spread between April 4, 2002 and Dec 31, 2003. As before, this model is available in two forms: GGM02S - complete to harmonic degree 160 - is derived purely from GRACE satellite data, and is unconstrained by any other information; and GGM02C - complete to degree 200 - is constrained with terrestrial gravity information. Tapley, B., J. Ries, S. Bettadpur, D. Chambers, M. Cheng, F. Condi, B. Gunter, Z. Kang, P.Nagel, R. Pastor, T. Pekker, S.Poole, F. Wang, 'GGM02 - An improved Earth gravity field model from GRACE', Journal of Geodesy (2005), DOI 10.1007/s00190-005-0480-z The original publication is available at www.springerlink.com

GRACE

www.geology.sdsu.edu

Edited by SDSU_Geological_Sciences (07/02/08 11:04 PM)