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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
Site Highlights
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
Altimetry Explainers!
Altimetry Explainers!
Jason-CS/Sentinel-6, Societal Benefits of altimetry, Sea Level Rise

Sea Level Rise Accelerating
Sea Level Rise Accelerating
According to a new study, the rate of global sea level rise has been accelerating in recent decades, rather than increasing steadily.

Take the Driver's Seat on Sea Level Science
Take the Driver's Seat on Sea Level Science
This new simulator allows anyone with a computer to perform idealized experiments with sea level and learn about its complexities.

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 11-Jun-2018 to 21-Jun-2018
Along-Track Near Real-Time Data
SARAL, Jason-2 and Jason-3 Measurements from 11-Jun-2018 to 21-Jun-2018
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