Delivery of Suomi National Polar-orbiting Partnership (Suomi NPP) satellite data products will cease on November 1, 2026. Data users should transition now to alternative products from NOAA-21 and NOAA-20.
Suomi NPP data announcement
Sea Surface Topography Data Access and Tools
Sea Surface Topography Datasets
| Dataset Sort descending | Version | Platform | Instrument | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| TOVS GLA 5 DAY GRIDS from NOAA-9 V01 (TOVSA5NF) | 01 | NOAA-9 | TOVS, MSU, HIRS/2 | 1984-12-31 to 1987-01-01 |
N: 90 S: -90 E: 180 W: -180 |
||
| TOVS GLA MONTHLY GRIDS from NOAA-10 V01 (TOVSAMNG) | 01 | NOAA-10 | HIRS/2, MSU, TOVS | 1986-11-30 to 1991-09-01 |
N: 90 S: -90 E: 180 W: -180 |
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 |
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