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Tracking changes in the solid Earth

GRACE data will also improve our understanding of Earth's lithosphere solid Earth. More precise measurements of the Earth's gravity field, such as those provided by GRACE, should lead to an improved understanding of the dynamics of the inner structure of the Earth.The characteristics of the continental lithosphere are the subject of varying opinions. Questions remain regarding its thermal and compositional nature, thickness, and mechanical properties. GRACE can track variations in the density of the lithosphere by looking at its impact on the Earth's gravitational field.Thus, data from GRACE will be used to compare competing models of the lower mantle viscosity and contribute to the improved understanding of mantle convection.

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The GRACE mission is jointly implemented by NASA and DLR under
the NASA Earth System Science Pathfinder Program.

Last Modified: Tue Feb 10, 2004