GRIM gravity model improvement using Lageos (GRIM3-L1)

Details GRIM gravity model improvement using Lageos (GRIM3-L1) GRIM gravity model improvement using Lageos (GRIM3-L1)

Sep 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.9285r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, Sept. 30, 1985, p. 9285-9299. CNES-supported research.

Physics

56

Celestial Geodesy, Geopotential, Lageos (Satellite), Geoids, Gravity Anomalies, Harmonics, Power Spectra, Satellite Tracking, Spherical Harmonics, Tables (Data)

Scientific paper

It is pointed out that a better knowledge of the geopotential is essential for disciplines dealing with precise point positioning, earth kinematics, interpretations of the earth interior, and ocean dynamics. Studies related to current experiments and future projects demonstrate the need for an improved gravity field in order to fully utilize the present-day capability of laser tracking and altimetry systems. In view of this situation, efforts are intensified for a geopotential model improvement on the basis of existing satellite tracking and terrestrial gravity data. The new gravity model GRIM3-L1 represents a first step toward an improved modeling of the geopotential, taking advantage of new data. GRIM3-L1 combines the optical laser satellite data normals of the GRIM3 model with new normal equation subsystems.

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