The GRACE twin satellites, launched 17 March 2002, are making detailed measurements of Earth's gravity field and revolutionizing investigations about Earth's water reservoirs, over land and ice ...
and over the oceans.
GRACE is a collaboration of the US and German space agencies (NASA and DLR). The key partners are the University of Texas Center for Space Research, Geoforschungszentrum Potsdam, and the Jet Propulsion Laboratory.
GRACE TELLUS provides user-friendly data grids, with most corrections applied, to analyze changes in the mass of the Earth's hydrologic components. We do so by using GRACE mission data, with additional post-processing, alone or in combination with other data, to generate gridded products (monthly and time-averaged) with the most up-to-date corrections.
GRACE Data in spherical harmonic form, for both the time-averaged and time-variable fields, are available from either PO.DAAC or GFZ.
Other sources of derived GRACE products are also listed in the left bar under 'RELATED SITES'.
Very useful information on the spacecraft, its instruments, and gravity field recovery can be found at the GFZ website
ACKNOWLEDGEMENTS: GRACE Tellus was supported by the NASA Research, Education, and Applications Solution Network (REASON), and is now supported by NASA's 'Making Earth System Data Records for Use in Research Environments' (MEASURES) Program. We are grateful to NASA's Dr. Martha Maiden for her continued support. GRACE Tellus is a member of the Earth Science Information Partner (ESIP) Federation.
Why GRACE Tellus ? . Tellus was the Roman Goddess of the planet Earth, and in English it offers a wordplay, so we can ask 'What can GRACE, and time changes in gravitational acceleration TELL US about our changing planet'?
For any problems or suggestions, please contact victor.zlotnicki@jpl.nasa.gov
LAST UPDATE: 2008-11-20 V.Zlotnicki
Contributors: A.Thevenin, Akiko Hayashi, DPC.
