Earth  ID: 30503

Ocean Bottom Pressure from GRACE

The twin Gravity Recovery and Climate Experiment (GRACE) satellites, launched on March 17, 2002, have been making detailed measurements of Earth’s gravity field from space and revolutionizing investigations about Earth's ocean, water reservoirs, large-scale solid Earth changes, and ice cover. To aid in the interpretation of gravity change over the oceans, the GRACE Tellus project provides ocean bottom pressure maps derived from the GRACE satellite data. Ocean bottom pressure is the sum of the mass of the atmosphere and ocean in a "cylinder" above the seafloor. This visualization shows monthly changes in ocean bottom pressure data obtained by the GRACE satellites from November 2002 to January 2012. Purple and blue shades indicate regions with relatively low ocean bottom pressure, while red and white shades indicate regions with relatively high ocean bottom pressure. Scientists use these data to observe and monitor changes in deep ocean currents, which transport water and energy around the globe.

Credits

Jessica Hausman (NASA/JPL CalTech): Project Support
Marit Jentoft-Nilsen (GST): Technical Support
Please give credit for this item to:
PODAAC

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http://svs.gsfc.nasa.gov/30503

Mission:
Gravity Recovery and Climate Experiment (GRACE)

Data Used:
Gravity Recovery and Climate Experiment (GRACE) 12/2002 12/2012
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

Keywords:
SVS >> Gravity
SVS >> HDTV
GCMD >> Earth Science >> Oceans
SVS >> Hyperwall
NASA Science >> Earth
SVS >> Presentation

GCMD keywords can be found on the Internet with the following citation: Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0