Follow this link to skip to the main content NASA Jet Propulsion Laboratory California Institute of Technology JPL HOME EARTH SOLAR SYSTEM STARS & GALAXIES SCIENCE & TECHNOLOGY BRING THE UNIVERSE TO YOU JPL Email News RSS Podcast Video
JPL Banner
Ocean Surface Topography from Space
Along-Track Near Real-Time Sea Surface Height Anomaly Data

These maps show a daily sample of the along-track near-real-time (NRT) sea surface height anomaly (SSHA) measurements from SARAL and the Jason-2 satellite altimeter mission. The seasonal cycle and trend have not been removed. Each map is generated from a 10-day window of SSHA measurements. The NRT SSHA measurements from these missions are typically available within 5 to 7 hours of real time. These measurements can be used for meteorological applications (i.e. weather), marine operations (i.e. fishing, boating, offshore operations), and other applications where knowledge of current ocean conditions are relevant.

To access the data files please see:


Link to
Site Manager: Margaret Srinivasan
Webmaster: Kristy Kawasaki
JPL Clearance: CL01-1707