Grace Satellite Gravity Data

Grace fo data global surface mass anomalies observed by the grace fo satellites for the month indicated on the map.

Grace satellite gravity data.

Grace in the news. Forecasts of each. The gravity recovery and climate experiment follow on grace fo is a continuation of the mission on near identical. By observing changes in the earth s gravity field scientists can estimate changes in the amount of water stored in a region which cause changes in gravity.

Drought forecasts nasa researchers have developed new satellite based weekly global maps of soil moisture and groundwater wetness conditions and one to three month u s. Start with satellite only fields resolution 300 100 km level 2. Start with inter technique data fusion goce grace grace fo gnss tracking of low earth orbiters etc level 1. The gravity recovery and climate experiment grace launched by nasa on march 17 2002 is revealing more detail about the gravity field than has ever been available before.

Twin satellites took detailed measurements of earth s gravity field anomalies from its launch in march 2002 to the end of its science mission in october 2017. Grace follow on releases first level 1 data products for the generation of level 2 gravity field products. Over land red colors indicate below average terrestrial water amounts while blue colors show above average water amounts including ice snow soil moisture and groundwater. They are based on terrestrial water storage observations derived from grace fo satellite data and integrated with other observations using a sophisticated numerical model of land surface water and energy processes.

The grace twin satellites launched 17 march 2002 are making detailed measurements of earth s gravity field changes revolutionizing investigations about earth s water reservoirs over land ice oceans as well as earthquakes and crustal deformations. A purely geodetic mdt estimate constructed in 2008 from the mean sea surface and mean geoid based on grace data other space and in situ gravity data. Read more read more groundwater maps and u s. The gravity recovery and climate experiment grace was a joint mission of nasa and the german aerospace center dlr.

After more than 15 productive years in orbit the u s german grace gravity recovery and climate experiment satellite mission has ended science operations. Satellite gravity data into three levels. Grace provides a more than 10 year long data record for scientific analysis. Prolific earth gravity satellites end science mission october 27 2017.

Scientists at nasa s goddard space flight center generate groundwater and soil moisture drought indicators each week. Data provided by grace are substantially improving our knowledge of earth s gravity and of a number of important aspects of global change.