This animation illustrates sea surface height anomalies (SSHA) from 1950 to 2009. The pre TOPEX/Poseidon (1992) SSHA data are derived from a cyclo-stationary EOF tuned to the AVISO SSHA and then applied to tide gauge data.
The GRACE twin satellites, launched 17 March 2002, are making detailed measurements of Earth's gravity field and are revolutionizing investigations about Earth's water reservoirs, large-scale solid earth changes, ice cover, and oceans. To aid in the interpretation of gravity change over the oceans, the GRACE Tellus project provides ocean bottom pressure (OBP) derived from the GRACE satellites. OBP is the sum of the mass of the atmosphere and ocean in a 'cylinder' above the seafloor.
Animation showing the extent of MY sea ice (white), FY sea ice (light gray), and open water (darker gray) from 20 June 2002 to 23 November 2009. Sea ice extent was derived from QuikSCAT data. Provided courtesy of David Long, Brigham Young University.
This visualization celebrates over a year of successful Aquarius observations. Sea surface salinity in the northern hemisphere is shown as the globe slowly rotates. The data cycles through a single year, 2012, and repeats. Two versions of the visualization are provided: a version with dates and a scientific color bar and another version without dates and a simpler color bar. The range of time shown is December 2011 through December 2012. The data continuously loops through this range every 6 seconds.
This visualization celebrates over a year of successful Aquarius observations. Sea surface salinity is shown at various locations around the globe. The range of time shown is December 2011 through December 2012. The data continuously loops through this range every 6 seconds. This visualization was generated based on version 2.0 of the Aquarius data products with all 3 scanning beams.
Early Career Achievement Medal - Michelle Gierach. This prestigious NASA medal is awarded to any Government employee for unusual and significant performance during the first 10 years of an individual’s early career
NASA’s Surface Water Ocean Topography (SWOT) satellite, expected to launch in 2021, will measure sea level height variations on spatial scales down to a few kilometers. This mission will ultimately allow the ocean’s submesoscale (spatial scales from kilometers to a few 10’s of kilometers) variations to be observed from space. AIRSWOT is the airborne calibration and validation instrument to support the planned SWOT mission, with a key objective to understand the spatial scales of ocean features that will potentially be resolved with SWOT.
