Our Rising Seas

Variability of Ocean Dynamic Topography

TOPEX/Poseidon Measurement System

Natural Hazards

For NASA engineer Shannon Statham, building spacecraft is all about being creative.

This animation illustrates the evolution of sea surface temperature (SST) anomalies (relative to the respective normal state) in the Pacific Ocean associated with the 2015-2016 El Niño.

Sentinel-6 Michael Freilich fairing logo

Applications of Spaceborne Altimetry

Greenland and Antarctica are home to most of the world's glacial ice – including its only two ice sheets – making them areas of particular interest to scientists.

It’s not only water processes that play a role in global sea level rise – ground movements can play a significant role as well.

On Aug. 26, 2015 at 9:30 a.m. PT, NASA hosted a media teleconference to discuss recent insights on sea level rise and the continuing challenge of predicting how fast and how much sea level will ris...

CNES Jason Logo

Ionospheric Total Electron Content

Mapping Global Ocean Circulation

Jason-1 5th Anniversary/Ocean Literacy Bookmark

Growing up in landlocked Zimbabwe, NASA JPL engineer Shailen Desai was far from the ocean but still experienced its effects on the climate. Now, he is contributing to an international effort to tra...

The Legacy of Topex/Poseidon

Jason-1 Measurement System

Whale Census and Habitat

Tracking the Oceans' Height To Understand Earth's Climate

Earth Science

TOPEX/Poseidon Sticker

This visualization shows total sea level change between 1992 and 2019, based on data collected from the TOPEX/Poseidon, Jason-1, Jason-2, and Jason-3 satellites. Blue regions are where sea level ha...

Oceans' Role in Climate - Jason-1

Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate, as previously thought, according to a new study based on 25 years of NASA and European satelli...

La Niña Series