QuickTime VR of TOPEX/Poseidon

Sea Level Isn't Level - Why it matters

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

This artist's concept show Jason-3 over the Amazon.

Jason-1 atop the Delta II Photo: Tom Shain

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

Karl and Seymour learn how carbon dioxide is formed in this sketch from The Lollygaggers, a global warming sketch comedy.

These photos were taken during the Dual Payload Attach Fitting (DPAF) mating operation with Jason-1. (11/13/01) Photos: Scott Michel

Jason-1 in full flight configuration

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

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

The SpaceX Falcon 9 rocket carrying the Sentinel-6 Michael Freilich spacecraft lifts off from Space Launch Complex 4 at Vandenberg Air Force Base in California, Nov. 21, 2020, at 9:17 a.m. PST

Fathoming the forces that determine global sea levels can be daunting. We present a guide to the basics of ocean surface topography.

Inside half of the Delta Clam shell faring

In many communities in the U.S., sea level rise is already a factor in people’s lives in the form of high-tide flooding.

Mission team members perform acoustic tests of the Sentinel-6 Michael Freilich satellite in a chamber outfitted with giant speakers that blast the spacecraft with sound. This is to ensure that the ...

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...

NASA Climate Watcher Waves Goodbye

High Resolution Jason-1 launch images

This artist's concept shows Jason-3 over the California coast.

El Niño is characterized by unusually warm ocean temperatures in the eastern equatorial Pacific. The warmer water associated with El Niño displaces colder water in the upper layer of the ocean caus...

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

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...

These photos were taken during the Payload Attach Fitting (PAF) mating operation with Jason-1. (11/14/01) Photos: Scott Michel

Sea Surface Height - Global Average from 1993 - 2011.

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