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Science Applications Summary

The estimates of the Earth gravity field from GRACE, in conjunction with other space-based measurements, in situ data and geophysical models will be used to determine the time varying changes in the mass of the Earth's dynamical system due to different geophysical processes as described in detail in this brochure.

Static Gravity Field Measurements

APPLICATION RESOLUTION
Oceanic Heat Flux >1000 km
Ocean Currents >1000 km
Solid Earth Sciences >300 km

Time Variable Gravity Field Measurements

APPLICATION RESOLUTION TIME SCALE COMMENTS
Oceanic Heat Flux >1000 Seasonal 30 day estimate
Ocean Bottom Pressure >500 km Seasonal 30 day estimate
Deep Ocean Currents >500 km Seasonal 30 day estimate
Sea Level Rise >700 km Secular 5 year estimate
Evapo-Transpiration >300 km Seasonal 30 day estimate
Greenland/Antarctic Ice   Secular
Seasonal
5 year estimate
1 year estimate

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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
CSR/TSGC Team Web