TOPEX/Poseidon Ground Tracks

Sentinel-6 Michael Freilich Launch footage

t - 12 minutes

Our planet is changing. Our ocean is rising. And it affects us all. That’s why a new international satellite will continue the decades-long watch over our global ocean and help us better understand...

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

Jason-3 Launch

SpaceX Falcon 9 Rocket

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

Jason-1 Poster

QuickTime VR of TOPEX/Poseidon

Decades of Discovery - How altimeters help us every day.

TOPEX/Poseidon launch

Our World: How High is the Ocean?

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.

SSH and SST - Indian Ocean

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.

Earth’s rising seas are some of the most visible signs of our warming planet. Over the last 23 years, NASA satellite missions have observed a steady rise in global sea levels as polar ice sheets me...

OSTM/Jason-2 Spacecraft

This is an artist's concept of the Sentinel-6 Michael Freilich spacecraft.

Sea Surface Height 01/2006-04/2010

SSH and SST - Pacific Ocean

High Resolution Jason-1 launch images

Launch preparations are progressing! (11/21/01) Photos: Stacy Mitchell of John Hopkins APL/TIMED project

Earth’s global sea levels are rising – and are doing so at an accelerating rate.

One of the best ways to understand Earth's ocean is from the perspective of space.

TOPEX/Poseidon Instruments