Delivery of new Suomi NPP data ceases on Nov. 2, 2026. Users should transition to alternative products. Suomi NPP data announcement

Migration to Consolidated Ingest and Archive will interrupt data ingestion at PO.DAAC, ASF DAAC, and GES DISC on Oct. 28-30, 2026. Read more

Ocean Waves Data Access and Tools

Ocean waves data from NASA range from regularly updated high-resolution Sentinel-1 radar imagery to historical Seasat data. Our datasets and tools help users find and integrate the data they need to learn more about the nature of ocean waves and their contributions to sea and coastal processes.

Ocean Waves Datasets

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Dataset	Version	Platform	Instrument	Temporal Extent	Spatial Extent	Data Format
Sentinel-6A MF Jason-CS L1B P4 Altimeter Low Resolution (LR) NTC Geolocated Waveforms V2	V2	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 V2	V2	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 L1A P4 Altimeter High Resolution (HR) NTC Intermediate Outputs with Instrument Calibrations V2	V2	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 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 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 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 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 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 P4 Altimeter High Resolution (HR) NTC Ocean Surface Topography (Unvalidated) 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
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
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NTC Reduced Ocean Surface Topography (Unvalidated) 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
Sentinel-6A MF Jason-CS L2 P4 Altimeter High Resolution (HR) NTC Reduced 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
Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) NTC Ocean Surface Topography (Unvalidated) 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
Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) 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
Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) NTC Reduced Ocean Surface Topography (Unvalidated) 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
Sentinel-6A MF Jason-CS L2 P4 Altimeter Low Resolution (LR) NTC Reduced 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
Sentinel-6A MF Jason-CS L2P 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
Sentinel-6A MF Jason-CS L2P P4 Altimeter Low Resolution (LR) 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
Sentinel-6A MF Jason-CS L3 P4 Altimeter High Resolution (HR) NTC Ocean Surface Topography (Unfiltered) Version 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 L3 P4 Altimeter Low Resolution (LR) NTC Ocean Surface Topography (Unfiltered) Version G01	G01	Sentinel-6A	Poseidon-4 Radar Altimeter	2020-11-30	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
Sentinel-6B/Jason-CS L1A P4 Altimeter High Resolution (HR) STC Intermediate Outputs with Instrument Calibrations	G	Sentinel-6B	Poseidon-4 Radar Altimeter, AMR-C, DORIS, GNSS RECEIVER, GNSS-RO RECEIVER, Star Tracker	2025-11-17	N: 66.15 S: -66.15 E: 180 W: -180	netCDF-4
Sentinel-6B/Jason-CS L1B P4 Altimeter High Resolution (HR) STC Geolocated Waveforms	G	Sentinel-6B	Poseidon-4 Radar Altimeter	2025-11-17	N: 66.15 S: -66.15 E: 180 W: -180	netCDF-4
Sentinel-6B/Jason-CS L1B P4 Altimeter Low Resolution (LR) STC Geolocated Waveforms	G	Sentinel-6B	Poseidon-4 Radar Altimeter	2025-11-17	N: 66.15 S: -66.15 E: 180 W: -180	netCDF-4
Sentinel-6B/Jason-CS L2 Advanced Microwave Radiometer (AMR-C) NRT Geophysical Parameters	G	Sentinel-6B	AMR	2025-11-17	N: 66.15 S: -66.15 E: 180 W: -180	netCDF-4

Crustal Dynamics Data Information System webinar banner image showing Global Navigation Satellite System data.avigation

GNSS Products at NASA's CDDIS for Disaster Monitoring, Crustal Deformation, Extreme Weather, and Other Applications

Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!

A Japanese home drifts in the Pacific Ocean a few days after the March 11, 2011, earthquake and tsunami in northeastern Japan.

Warnings from the Ionosphere

GPS may be able to pace tsunamis.

7 MIN READ

A tsunami strikes northeast Japan after the 2011 Tohoku Earthquake, generating waves up to 133 feet high along some areas of the coast.

Sizing a Tsunami

GPS helps scientists quickly forecast massive waves.

8 MIN READ

image of tsunami impact on the ionosphere

GUARDIAN—Monitoring Earth's Ionosphere for Natural Hazards in Near Real-Time

Learn how to use the GNSS-based Upper Atmospheric Realtime Disaster Information and Alert Network (GUARDIAN) ionospheric monitoring software to supplement early warning systems (EWS) detections of natural hazards such as tsunamis, volcanic eruptions, earthquakes, and geomagnetic and solar storms.

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