Statistics – Methodology
Scientific paper
Jan 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3302402l&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 2, CiteID L02402
Statistics
Methodology
25
Geodesy And Gravity: Time Variable Gravity (7223, 7230), Geodesy And Gravity: Global Change From Geodesy (1222, 1622, 1630, 1641, 1645, 4556), Geodesy And Gravity: Mass Balance (0762, 1223, 1631, 1836, 1843, 3010, 3322, 4532), Geodesy And Gravity: Satellite Geodesy: Results (6929, 7215, 7230, 7240), Geodesy And Gravity: Satellite Geodesy: Technical Issues (6994, 7969)
Scientific paper
New monthly estimates of the Earth's gravity field determined solely from GRACE inter-satellite range-rate measurements using an improved method of accelerometer calibration and the use of a baseline state parameterization are presented in this paper. Our methodology exploits the inherent power of the inter-satellite range-rate data at the expense of the GPS data, which are used solely for establishing an accurate orbital reference and for calibrating accelerometers. Resulting gravity solutions show significantly less error than previously published GRACE solutions, especially for spherical harmonic terms of degree 2 and terms of order 15,16.
Chinn Douglas
Klosko Steve M.
Lemoine Frank G.
Luthcke Scott B.
McCarthy J. J.
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