The combination of satellite and topographic/isostatic potential models for mean anomaly determinationsA method is presented for the estimation of a global gravity anomaly field using the combination of satellite-derived potential coefficient models and the coefficients implied by the Airy-Heiskanen topographic/isostatic potential (Rummel et al., 1988) from topographic models with a 30-km depth of compensation. Gravity anomalies calculated with this method are compared with a terrestrial 1 x 1 degree anomaly file where the anomaly standard deviations were less than 10 mgals. Using the GEM T1 model (Marsh et al., 1988) to degree 36, the rms anomaly discrepency was + or - 19 mgals, while the rms values for the terrestrial anomalies was + or - 28 mgals.
Document ID
19890057880
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Rapp, Richard H. (Ohio State Univ. Columbus, OH, United States)
Pavlis, Nikolaos (Ohio State University Columbus, United States)