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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
Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 6.0	6.0	OSTM/JASON-2, JASON-1, TOPEX/POSEIDON, JASON-3, Sentinel-6A	AMR, POSEIDON-3, JASON-1 Microwave Radiometer, POSEIDON-2, TMR, POSEIDON-3B	1992-09-25 to 2025-05-22	N: 66 S: -66 E: 180 W: -180		netCDF-4
Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 6.1	6.1	OSTM/JASON-2, JASON-1, TOPEX/POSEIDON, JASON-3, Sentinel-6A	AMR, POSEIDON-3, JASON-1 Microwave Radiometer, POSEIDON-2, TMR, POSEIDON-3B	1992-09-25 to 2026-01-04	N: 66 S: -66 E: 180 W: -180		netCDF-4
JASON-1 ENHANCED JASON MICROWAVE RADIOMETER	1	JASON-1	JASON-1 Microwave Radiometer	2002-01-15 to 2012-02-11	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 GDR SSHA version E NetCDF	E	JASON-1	JASON-1 Microwave Radiometer, POSEIDON-2	2002-01-14 to 2012-03-03	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 GDR SSHA version E NetCDF Geodetic	E	Jason-1 Geodetic	JASON-1 Microwave Radiometer, POSEIDON-2	2012-05-07 to 2013-06-21	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 GDR version E NetCDF	E	JASON-1	DORIS, JASON-1 Microwave Radiometer, POSEIDON-2	2002-01-14 to 2012-03-03	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 GDR version E NetCDF Geodetic	E	Jason-1 Geodetic	DORIS, JASON-1 Microwave Radiometer, POSEIDON-2	2012-05-07 to 2013-06-21	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 SGDR version E NetCDF	E	JASON-1	TRSR, DORIS, JASON-1 Microwave Radiometer, POSEIDON-2	2002-01-14 to 2012-03-03	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-1 SGDR version E NetCDF Geodetic	E	Jason-1 Geodetic	TRSR, DORIS, JASON-1 Microwave Radiometer, POSEIDON-2	2012-05-07 to 2013-06-21	N: 66.15 S: -66.15 E: 180 W: -180		netCDF-4
Jason-3 GPS based orbit and SSHA OGDR	G	JASON-3	AMR, GPSP, POSEIDON-3	2020-10-29	N: 66 S: -66 E: 180 W: -180		netCDF-4
Jason-3 Wet Path Delay Correction	F	JASON-3	AMR, GPSP, POSEIDON-3	2016-02-12	N: 66 S: -66 E: 180 W: -180		ascii
MEaSUREs Gridded Sea Surface Height Anomalies Version 2205	2205	OSTM/JASON-2, JASON-1, TOPEX/POSEIDON, JASON-3, Sentinel-6A	AMR, POSEIDON-3, JASON-1 Microwave Radiometer, POSEIDON-2, POSEIDON-3B, Poseidon-4 Radar Altimeter, AMR-C	1992-10-01 to 2022-12-22	N: 80 S: -80 E: 180 W: -180	0.17 Decimal Degrees x 0.17 Decimal Degrees	netCDF-4
MERRA-2 const_2d_asm_Nx: 2d, constants 0.625 x 0.5 degree V5.12.4 (M2C0NXASM)	5.12.4	MERRA-2	NOT APPLICABLE	1980-01-01 to 2020-12-31	N: 90 S: -90 E: 180 W: -180	0.625 Kilometers x 0.5 Kilometers
NASA-SSH Along-Track Sea Surface Height from Standardized Reference Missions Version 1	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	N: 90 S: -90 E: 180 W: -180	10 Kilometers x 10 Kilometers	netCDF-4
NASA-SSH Along-Track Sea Surface Height from Standardized Reference Missions Version 1.1	1.1	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	N: 90 S: -90 E: 180 W: -180	10 Kilometers x 10 Kilometers	netCDF-4
NASA-SSH ENSO Sea Surface Height Indicator	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	1993-01-04	N: 66 S: -66 E: 180 W: -180		ASCII
NASA-SSH Global Mean Sea Level from Simple Gridded Sea Surface Height	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	1993-01-04	N: 66 S: -66 E: 180 W: -180		ASCII
NASA-SSH IOD Sea Surface Height Indicator	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	1993-01-04	N: 66 S: -66 E: 180 W: -180		ASCII
NASA-SSH PDO Sea Surface Height Indicator	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	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	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	N: 90 S: -90 E: 180 W: -180	0.5 Decimal Degrees x 0.5 Decimal Degrees	netCDF-4
NASA-SSH Simple Gridded Sea Surface Height from Standardized Reference Missions Only Version 1.1	1.1	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	1992-10-21 to Present	N: 90 S: -90 E: 180 W: -180	0.5 Decimal Degrees x 0.5 Decimal Degrees	netCDF-4
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

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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Items

Tool Sort descending	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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