TOPEX/Poseidon
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TOPEX/Poseidon was a joint satellite altimeter mission between NASA, the U.S. space agency; and CNES, the French space agency, to map ocean surface topography. Launched on August 10, 1992, it was the
Artist's rendering of the TOPEX/Poseidon satellite.
The accurate determination of the ocean height is made by first characterizing the precise height of the spacecraft above the center of the Earth.
The 1997-98 El Nino
Satellite geodesy
Videos
Satellite geodesy is geodesy by means of artificial satellites—the measurement of the form and dimensions of Earth, the location of objects on its surface and the figure of the Earth's gravity field b
TOPEX/Poseidon
…TOPEX/Poseidon was a joint satellite altimeter mission between NASA, the U.S. space agency; and CNES, the French space agency, to map ocean surface topography. Launched on August 10, 1992, it was…
Wettzell Laser Ranging System, a satellite laser ranging station
Artist's conception of GRACE
This graph shows the rise in global sea level (in millimeters) measured by the NASA/CNES ocean altimeter mission TOPEX/Poseidon (on the left) and its follow-on mission Jason-1. Image credit: University of Colorado