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Sea Surface Topography Data Access and Tools

Sea Surface Topography Datasets

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Dataset Sort descending	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Spatial Resolution	Data Format
Reconstructed Global Mean Sea Level 1900-2018	1.0	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	N: 89.5 S: -89.5 E: 180 W: -180		netCDF-4
Reconstructed Sea Level Version 1	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	N: 90 S: -90 E: 180 W: -180	0.5 Decimal Degrees x 0.5 Decimal Degrees	netCDF-4
SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly	f	SARAL	ALTIKA Altimeter	2020-03-18	N: 82 S: -82 E: 180 W: -180	8000 Meters x 8000 Meters	netCDF-4
SASSIE ECCO Ocean Bottom Pressure and Sea Surface Height - Daily Mean llc1080 Grid (Version 1 Release 1)	V1R1	MITgcm		2014-01-15 to 2021-02-08			NETCDF4
SASSIE ECCO Ocean Bottom Pressure and Sea Surface Height - Snapshot llc1080 Grid (Version 1 Release 1)	V1R1	MITgcm		2014-01-15 to 2021-02-08			NETCDF4
Seasat Level 1 Synthetic Aperture Radar Products	1	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	F08	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker	2020-11-30	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	G01	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations	F	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker	2020-12-07	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter High Resolution (HR) NTC Geolocated Waveforms F08	F08	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter High Resolution (HR) NTC Geolocated Waveforms G01	G01	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter High Resolution (HR) STC Geolocated Waveforms	F	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-12-07	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter Low Resolution (LR) NTC Geolocated Waveforms F08	F08	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter Low Resolution (LR) NTC Geolocated Waveforms G01	G01	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L1B P4 Altimeter Low Resolution (LR) STC Geolocated Waveforms	F	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-12-07	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NRT Geophysical Parameters	F	Sentinel-6A	AMR	2020-11-28	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NTC Geophysical Parameters F08	F08	Sentinel-6A	AMR	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NTC Geophysical Parameters G01	G01	Sentinel-6A	AMR	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NTC Geophysical Parameters (Unvalidated) F08	F08	Sentinel-6A	AMR	2020-11-28	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NTC Geophysical Parameters (Unvalidated) G01	G01	Sentinel-6A	AMR	2020-11-28	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 Advanced Microwave Radiometer (AMR-C) STC Geophysical Parameters	F	Sentinel-6A	AMR	2020-12-06	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NRT Ocean Surface Topography	F	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER	2020-12-07	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NRT Reduced Ocean Surface Topography	F	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER	2020-12-07	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NTC Ocean Surface Topography F08	F08	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NTC Ocean Surface Topography G01	G01	Sentinel-6A	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER	2020-11-30	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4

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

An artist's rendition of the SWOT satellite emitting radar pulses to Earth's surface.

NASA's Surface Water and Ocean Topography (SWOT) Mission Data Release

Recently released datasets from the SWOT mission provide scientists with previously unavailable measurements of Earth's surface water.

9 MIN READ

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.

Global coverage of the Surface Water and Ocean Topography (SWOT) River Reach collection highlighting its 21 day global cycle of Water Surface Elevation (WSE).

From Space to Solutions: Access, Visualization, and Analysis Services for SWOT Hydrology

Join us on Wed., July 30 at 2:00 p.m. EDT (-04:00 UTC) to explore SWOT hydrology data collections of rivers and lakes, and to learn how to work with SWOT hydrology data using tools provided by both NASA's PO.DAAC and the USGS.

Earthdata graphic identifier on top of satellite image of Earth

Hydrocron: A New Tool for SWOT Time Series Analysis

Hydrocron enables users to receive all Surface Water and Ocean Topography (SWOT) observations for a specific river ID within a specified date range.

Sea Surface Topography Data Tools

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