TOPEX/Poseidon Launch

OSTM/Jason-2 - All instruments plus data animation

High Resolution Jason-1 launch images

Jason-3 Animation

Jason-1 launch images

TOPEX/Poseidon Artist's Concept

OSTM/Jason-2 Line Drawing

SSH and SST - Indian Ocean

Jason-3 3D Model

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...

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...

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...

TOPEX/Poseidon Instruments

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

Altimeter Mission Series

Jason-1 readies for launch in its bay at Vandenberg, AFB (10/31/01)

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

Sea Surface Height - Global Average from 1993 - 2011.

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

Sea Level Isn't Level - Why it matters

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

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

Jason-3 Lifts Off!

NASA and its partners announced the renaming of the mission, previously known as Sentinel-6A/Jason-CS.

SSH and SST - Global

It's hard to "see" sea level rise by just looking at the ocean, but its effects are very real.