We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project
Sea Surface Topography Data Access and Tools
Sea Surface Topography Datasets
| Dataset Sort descending | Version | Platforms | Instruments | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| 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 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 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 |
||
| TOVS GLA 5 DAY GRIDS from NOAA-9 V01 (TOVSA5NF) at GES DISC | 01 | NOAA-9 | TOVS, MSU, HIRS/2 | 1984-12-31 to 1987-01-01 |
N: 90 S: -90 E: 180 W: -180 |
SHOWING 10 OF 161
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).
Recently released datasets from the SWOT mission provide scientists with previously unavailable measurements of Earth's surface water.
9 MIN READ
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.
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.
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
| 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 |
SHOWING 2 OF 2
Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses