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Sea Surface Topography Data Access and Tools

Sea Surface Topography Datasets

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Dataset Platforms Instruments Temporal Extent Location Keywords Spatial Extent Data Format
NASA-SSH Global Mean Sea Level from Simple Gridded Sea Surface Height TOPEX/POSEIDON, JASON-1, OSTM/JASON-2, JASON-3, Sentinel-6A SSALT, NRA, TMR, POSEIDON-2, JASON-1 Microwave Radiometer, POSEIDON-3, AMR, POSEIDON-3B, AMR-2, Poseidon-4 Radar Altimeter, AMR-C 1993-01-04 N: 66 S: -66 E: 180 W: -180 ASCII
NASA-SSH IOD Sea Surface Height Indicator TOPEX/POSEIDON, JASON-1, OSTM/JASON-2, JASON-3, Sentinel-6A SSALT, NRA, TMR, POSEIDON-2, JASON-1 Microwave Radiometer, POSEIDON-3, AMR, POSEIDON-3B, AMR-2, Poseidon-4 Radar Altimeter, AMR-C 1993-01-04 N: 66 S: -66 E: 180 W: -180 ASCII
NASA-SSH PDO Sea Surface Height Indicator TOPEX/POSEIDON, JASON-1, OSTM/JASON-2, JASON-3, Sentinel-6A SSALT, NRA, TMR, POSEIDON-2, JASON-1 Microwave Radiometer, POSEIDON-3, AMR, POSEIDON-3B, AMR-2, Poseidon-4 Radar Altimeter, AMR-C 1993-01-04 N: 66 S: -66 E: 180 W: -180 ASCII
NASA-SSH Simple Gridded Sea Surface Height from Standardized Reference Missions Only Version 1 TOPEX/POSEIDON, JASON-1, OSTM/JASON-2, JASON-3, Sentinel-6A SSALT, NRA, TMR, POSEIDON-2, JASON-1 Microwave Radiometer, POSEIDON-3, AMR, POSEIDON-3B, AMR-2, Poseidon-4 Radar Altimeter, AMR-C 1992-10-25 to Present GLOBAL OCEAN N: 90 S: -90 E: 180 W: -180 netCDF-4
Reconstructed Global Mean Sea Level 1900-2018 GRACE-FO, GRACE GRACE-FO MWI, GRACE-FO SCA, GRACE-FO ACC, GRACE SCA, GRACE INTERFEROMETER, GRACE ACC 1900-01-01 to 2018-12-31 GLOBAL N: 89.5 S: -89.5 E: 180 W: -180 netCDF-4
Reconstructed Sea Level Version 1 OSTM/JASON-2, Jason-1 Geodetic, JASON-1, TOPEX/POSEIDON AMR, POSEIDON-3, JASON-1 Microwave Radiometer, POSEIDON-2, TMR, SSALT 1950-01-03 to 2009-06-27 GLOBAL N: 90 S: -90 E: 180 W: -180 netCDF-4
SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly SARAL ALTIKA Altimeter 2020-03-18 N: 82 S: -82 E: 180 W: -180 netCDF-4
Seasat Level 1 Synthetic Aperture Radar Products SEASAT 1 SAR 1978-07-04 to 1978-10-12 GeoTIFF, HDF5, XML, KML, Text File
Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) NTC Intermediate Outputs with Instrument Calibrations F08 Sentinel-6A Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker 2020-11-30 GLOBAL OCEAN, GLOBAL N: 66.15 S: -66.15 E: 180 W: -180 netCDF-4
Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) NTC Intermediate Outputs with Instrument Calibrations G01 Sentinel-6A Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker 2020-11-30 GLOBAL OCEAN, GLOBAL N: 66.15 S: -66.15 E: 180 W: -180 netCDF-4
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Featured Sea Surface Topography Observation Method: SWOT
NASA's Surface Water and Ocean Topography (SWOT) platform monitors Earth’s surface water and measures how water bodies, such seas and oceans, change over time. SWOTS measures water surface heights using its primary instrument, the Ka-band Radar Interferometer (KaRIn).
Learn More About SWOT
Webinar thumbnail for the SWOT webinar to be held on March 20, 2024.

Accessing Data for the World's Water with SWOT

Learn how to discover, access, and use Surface Water and Ocean Topography (SWOT) mission data and how these data can lead to new, innovative science and applications in the world of water.

Sea Surface Topography Data Tools

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Tool Description Services
Hydrocron Hydrocron is an API that repackages hydrology datasets from SWOT into formats that make time-series analysis easier. Subsetting, Visualization
SWOT Swath Visualizer The Surface Water and Ocean Topography (SWOT) Swath Visualizer provides a visualization of two instruments’ coverage of Earth's surface: the Ka-band Radar Interferometer and altimeter. Analysis, Data Curation, Visualization
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