Our Rising Seas

On the left is Sea Surface Height Anomalies (SSHA) relative to the sea level mean (1993-2018). On the right is Global Mean Sea Level (GMSL) with the sea level trend as the straight line. The data a...

Jason-1 Fact Sheet

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...

A Year in the Life Of El Niño

TOPEX/Poseidon Measurement System

Jason-1 Measurement System

Changing conditions in the Pacific have stirred up Earth’s largest ocean and redistributed its heat, piling up warm waters along U.S. Western shores and raising sea level in the process.

Sentinel-6 Michael Freilich spacecraft logo

Sea levels across the globe are rising as a result of a changing climate — and the rate at which they are rising is accelerating. NASA Science Live was recorded Tuesday, Nov. 17, 2020, and featured...

A look at how NASA is dealing with the threat of sea level rise to its coastal infrastructure.

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...

OSTM/Jason-2 insignia for launch vehicle

Ionospheric Total Electron Content

Ocean Dynamic Topography

Jason-1 Fact Sheet

TOPEX/Poseidon Fact Sheet

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...

Applications of Spaceborne Altimetry

Tracking the Oceans' Height To Understand Earth's Climate

Launching aboard the joint U.S.-European Sentinel-6 Michael Freilich satellite is NASA’s next instrument that will help improve weather forecasting.

Sentinel-6 Michael Freilich fairing logo

TOPEX/Poseidon Sticker

Sea Level

Jason-1 JPL Open House '99 Display

Water & Energy