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Taking a Measure of Sea Level Rise: Ocean Altimetry

The ocean is lumpy and sloshes around its basins for natural reasons. But it is also rising, slowly and steadily.


NASA Earth Observatory images by Joshua Stevens, using TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3 data courtesy of Ben Hamlington, NASA/JPL-Caltech, and tide gauge data from Permanent Service for Mean Sea Level (PSMSL). Video by NASA/JPL-Caltech. Story by Michael Carlowicz, with science interpretation by Ben Hamlington/NASA JPL, Richard Ray/NASA Goddard, and Josh Willis, NASA JPL.

Published November 5, 2020
Data acquired January 1, 1993

Sources:
In situ Measurement
JASON-1
JASON-2
JASON-3
TOPEX/Poseidon
Collection:
Sea Level Rise