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Ocean Surface Topography from Space
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Latest El Niño/La Niña Watch Data
The latest image from NASA's Jason satellite is updated approximately every 15 days.
Latest El Nino/La Nina Watch Data
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Societal Benefits
Societal Benefits
Data and images from TOPEX/Poseidon and Jason altimeters are being used for practical applications.
Literature Database
Literature Database
A searchable database of ocean surface topography related published works.
Literature Database
OST Science Team
Updates on the latest research being completed by the team of international and interdisciplinary scientists.
FeaturesFeature Archive
When floods cross borders…
When floods cross borders…

Happy Birthday to Jason-3!
Happy Birthday to Jason-3!
January 17th celebrates the third anniversary of launch of Jason-3, after having orbited the Earth more than 14,000 times.

Monitoring global sea level change
Monitoring global sea level change
By Lee Fu and Dean Roemmich

Link to the Jason-3 Mission page Link to the Sea Level curve data
El Niño: 1997-1998 vs. 2015-2016
A side-by-side animation comparing the two events.
El Nino: 1997-1998 vs. 2015-2016
Sea Surface Height Anomaly: SARAL, Jason-2 and Jason-3 Measurements from 10-May-2019 to 20-May-2019
Along-Track Near Real-Time Data
SARAL, Jason-2 and Jason-3 Measurements from 10-May-2019 to 20-May-2019
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