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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
SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms - SSHA Version D	D	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms, Version 1.0	1.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180	300 Meters x 300 Meters 6000 Meters x 6000 Meters	netCDF-4
SWOT Level 2 Nadir Altimeter Interim Geophysical Data Record with Waveforms Version D	D	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180	300 Meters x 300 Meters 6000 Meters x 6000 Meters	netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms	2.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180	300 Meters x 300 Meters 6000 Meters x 6000 Meters	netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - GDR	2.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - GDR, Version 1.0	1.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - GDR Version D	D	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - SSHA	2.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - SSHA, Version 1.0	1.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - SSHA Version D	D	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms, Version 1.0	1.0	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180	300 Meters x 300 Meters 6000 Meters x 6000 Meters	netCDF-4
SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms Version D	D	SWOT	Jason-class Altimeter, AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180	300 Meters x 300 Meters 6000 Meters x 6000 Meters	netCDF-4
SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product	2.0	SWOT	AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Level 2 Radiometer Brightness Temperatures and Troposphere Data Product Version D	D	SWOT	AMR	2022-12-16	N: 77.6 S: -77.6 E: 180 W: -180		netCDF-4
SWOT Simulated Level-2 KaRIn SSH from GLORYS for Cal/Val Version 1	1	COMPUTERS	Computer	2014-04-12 to 2015-12-31	N: 77.6 S: -77.6 E: 180 W: -180	2000 Meters x 2000 Meters	netCDF-4
SWOT Simulated Level-2 KaRIn SSH from GLORYS for Science Version 1	1	COMPUTERS	Computer	2014-04-12 to 2015-12-31	N: 77.6 S: -77.6 E: 180 W: -180	2000 Meters x 2000 Meters	netCDF-4
SWOT Simulated Level-2 KaRIn SSH from MITgcm ECCO LLC4320 for Cal/Val Version 1	1	MITgcm	Computer	2011-11-13 to 2012-11-12	N: 77.6 S: -77.6 E: 180 W: -180	2000 Meters x 2000 Meters	netCDF-4
SWOT Simulated Level-2 KaRIn SSH from MITgcm ECCO LLC4320 for Science Version 1	1	MITgcm	Computer	2011-11-13 to 2012-11-12	N: 77.6 S: -77.6 E: 180 W: -180	2000 Meters x 2000 Meters	netCDF-4
SWOT Simulated Level-2 Nadir SSH from GLORYS for Cal/Val Version 1	1	COMPUTERS	Computer	2014-04-12 to 2015-12-31	N: 77.6 S: -77.6 E: 180 W: -180	2 Kilometers x 2 Kilometers	netCDF-4
SWOT Simulated Level-2 Nadir SSH from GLORYS for Science Version 1	1	COMPUTERS	Computer	2014-04-12 to 2015-12-31	N: 77.6 S: -77.6 E: 180 W: -180	2 Kilometers x 2 Kilometers	netCDF-4
SWOT Simulated Level-2 Nadir SSH from MITgcm ECCO LLC4320 for Cal/Val Version 1	1	MITgcm	Computer	2011-11-13 to 2012-11-12	N: 77.6 S: -77.6 E: 180 W: -180	2 Kilometers x 2 Kilometers	netCDF-4
SWOT Simulated Level-2 Nadir SSH from MITgcm ECCO LLC4320 for Science Version 1	1	MITgcm	Computer	2011-11-13 to 2012-11-12	N: 77.6 S: -77.6 E: 180 W: -180	2 Kilometers x 2 Kilometers	netCDF-4
Tellus Level-4 Ocean Mass Anomaly Time Series from JPL GRACE/GRACE-FO Mascon CRI Filtered Release 06.3 version 04	RL06.3Mv04	GRACE-FO, GRACE	GRACE-FO MWI, GRACE INTERFEROMETER	2002-04-01	N: 90 S: -90 E: 180 W: -180	0.5 Decimal Degrees x 0.5 Decimal Degrees	ASCII
TOPEX/POSEIDON Geophysical Data Record Version F	F	TOPEX/POSEIDON	ALT (TOPEX), TMR	1992-10-13 to 2005-10-04	N: 66 S: -66 E: 180 W: -180		netCDF-4
TOVS GLA 5 DAY GRIDS from NOAA-11 V01 (TOVSA5NH) at GES DISC	01	NOAA-11	HIRS/2, MSU, TOVS	1988-10-12 to 1994-06-30	N: 90 S: -90 E: 180 W: -180

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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