TOPEX/Poseidon Instruments

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.

A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 4 at Vandenberg Air Force Base carrying the Jason-3 spacecraft. Liftoff was at 10:42 a.m. PST (1:42 p.m. EST).

For NASA JPL engineer Parag Vaze, studying Earth’s rising ocean has been a career three decades in the making.

The Argo stop-motion animation aims to inspire children (and adults) to engage with marine science. It is quirky, fun and informative at the same time. The animation explains what an Argo float is,...

Watching Our Oceans

A key ocean observation satellite has been named after Earth scientist Michael Freilich

Sea Level Isn't Level - Why it matters

Jason-1 Spacecraft Animation

Decades of Discovery - How altimeters help us every day.

This video discusses the water cycle, which is the movement of water around the Earth, and its importance to life. Changes to the water cycle affect climate and vice versa.

Watch the Jason-3 Science Briefing from Friday, Jan 15, 2016 - panelists discussed the science and research of the Jason-3 mission.

Sea Surface Height 01/2006-04/2010

Sea level rise is an indicator that our planet is warming. When ice on land, such as mountain glaciers or the ice sheets of Greenland or Antarctica, melts, that water contributes to sea level rise.

Ice covers 10 percent of Earth's surface and helps moderate the planet's temperature.

Jason-CS/Sentinel-6 - How they will work

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...

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

The ocean is responsible for Earth's mild climate and makes life on Earth possible for all creatures.

Experts from NASA, ESA, EUMETSAT, and NOAA discuss the upcoming launch of Sentinel-6 Michael Freilich in a recorded live broadcast

For NASA scientist Severine Fournier, studying our planet knows no borders.

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...

To provide scientists with essential information about global and regional changes in the seas, NASA will launch the Jason-3 satellite from Vandenberg Air Force Base in California.

TOPEX/Poseidon Launch

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

Here we provide side by side comparisons of Pacific Ocean sea surface height (SSH) anomalies of what is presently happening in 2015 with the Pacific Ocean signal during the famous 1997 El Niño.