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
TOPEX/Poseidon Data Access and Tools
Datasets
| Dataset Sort descending | Instrument | Temporal Extent | Version | Data State | Data Format | Science Keywords |
|---|---|---|---|---|---|---|
| NASA-SSH Global Mean Sea Level from Simple Gridded Sea Surface Height | 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 | 1 | ACTIVE | ASCII | Sea Level, Sea Surface Height |
| NASA-SSH IOD Sea Surface Height Indicator | 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 | 1 | ACTIVE | ASCII | Sea Level, Sea Surface Height |
| NASA-SSH PDO Sea Surface Height Indicator | 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 | 1 | ACTIVE | ASCII | Sea Level, Sea Surface Height |
| NASA-SSH Simple Gridded Sea Surface Height from Standardized Reference Missions Only Version 1 | 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 | 1 | ACTIVE | netCDF-4 | Sea Surface Height, Sea Surface Height Anomaly (SSHA) |
| NASA-SSH Simple Gridded Sea Surface Height from Standardized Reference Missions Only Version 1.1 | 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 | 1.1 | ACTIVE | netCDF-4 | Sea Surface Height, Sea Surface Height Anomaly (SSHA) |
| Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Final 0.25 Degree (Version 2.0) | AVHRR-2, JASON-1 Microwave Radiometer, POSEIDON-2, ALT (TOPEX), TMR, SSALT, AVHRR-3, GRACE-FO ACC, KBR, GRACE SCA, AMR, POSEIDON-3, SSM/I, ERS-2 Altimeter, GFO Altimeter, RA-2, SEAWINDS, ERS-1 ALTIMETER, POSEIDON-3B | 1993-01-01 to 2022-08-05 | 2.0 | COMPLETE | netCDF-4 | Ocean Currents |
| Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Interim 0.25 Degree (Version 2.0) | AVHRR-2, JASON-1 Microwave Radiometer, POSEIDON-2, ALT (TOPEX), TMR, SSALT, AVHRR-3, GRACE-FO ACC, KBR, GRACE SCA, AMR, POSEIDON-3, SSM/I, ERS-2 Altimeter, GFO Altimeter, RA-2, SEAWINDS, ERS-1 ALTIMETER, POSEIDON-3B | 2020-01-01 to Present | 2.0 | ACTIVE | netCDF-4 | Ocean Currents |
| Ocean Surface Current Analyses Real-time (OSCAR) Surface Currents - Near Real Time 0.25 Degree (Version 2.0) | AVHRR-2, JASON-1 Microwave Radiometer, POSEIDON-2, ALT (TOPEX), TMR, SSALT, AVHRR-3, GRACE-FO ACC, KBR, GRACE SCA, AMR, POSEIDON-3, SSM/I, ERS-2 Altimeter, GFO Altimeter, RA-2, SEAWINDS, ERS-1 ALTIMETER, POSEIDON-3B | 2021-01-01 to Present | 2.0 | ACTIVE | netCDF-4 | Ocean Currents |
| Pre SWOT Hydrology GRRATS Daily River Heights and Storage Version 2 | POSEIDON-3, ALT (TOPEX), RA-2, POSEIDON-3B, POSEIDON-2, ALTIMETERS | 1992-04-06 to 2018-04-20 | 2 | COMPLETE | netCDF-4 | Surface Water Features |
| Reconstructed Sea Level Version 1 | AMR, POSEIDON-3, JASON-1 Microwave Radiometer, POSEIDON-2, TMR, SSALT | 1950-01-03 to 2009-06-27 | 1 | COMPLETE | netCDF-4 | Sea Surface Height |
| Satellite Laser Ranging (SLR) Predictions from NASA CDDIS | RETROREFLECTOR ARRAY, LASER RANGING STATION | 1998-01-01 to Present | 1 | ACTIVE | Geodetics | |
| TOPEX ALTIMETER SENSOR DATA RECORD | TMR, ALT (TOPEX) | 1992-09-25 to 2005-10-04 | A | COMPLETE | RAW | Sea Surface Topography |
| TOPEX/POSEIDON Geophysical Data Record Version F | ALT (TOPEX), TMR | 1992-10-13 to 2005-10-04 | F | COMPLETE | netCDF-4 | Sea Surface Height, Significant Wave Height |
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