Open AccessResearch Spotlight: Model of Earth's gravity field developed from combined satellite data
Author(s) -
Kumar Mohi,
Tretkoff Ernie
Publication year - 2010
Publication title -
eos, transactions american geophysical union
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 86
eISSN - 2324-9250
pISSN - 0096-3941
DOI - 10.1029/eo091i049p00468-02
Subject(s) - gravitational field , geology , satellite , gravity of earth , earth (classical element) , geodesy , geophysics , gravitation , field (mathematics) , figure of the earth , physics , astronomy , mathematics , pure mathematics
Models of Earth's gravity field show how the planet's density varies in its interior and on its surface, depending on topography and geologic composition. For instance, dense mountains create an area of stronger gravitational pull. Pail et al. developed a new model of Earth's gravity field using measurements from both the Gravity Recovery and Climate Experiment (GRACE) satellites and the Gravity Field and Steady‐State Ocean Circulation Explorer (GOCE) satellite.