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Ocean Data Access and Tools

NASA data span the geophysical parameters that characterize the global ocean and the physical processes operating within its depths and at its surface. Our datasets and tools help researchers translate these interconnected data points into actionable knowledge.

Visit Ocean Learning Resources to better understand the metadata for each data collection.

Ocean Datasets

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Dataset Version Platform Instrument Temporal Extent Spatial Extent Spatial Resolution Data Format
NCEP/DOE Reanalysis II in HDF-EOS5, for GSSTF2c, 1x1 deg Daily grid V2c (GSSTF_NCEP) at GES DISC 2c NCEP-GFS NOT APPLICABLE 1987-07-01 to 2009-01-01

N: 90 S: -90 E: 180 W: -180

NCEP/DOE Reanalysis II in HDF-EOS5, for GSSTF2c, 1x1 deg Monthly grid V2c (GSSTFM_NCEP) at GES DISC 2c NCEP-GFS NOT APPLICABLE 1987-07-01 to 2008-12-31

N: 90 S: -90 E: 180 W: -180

Neutrally buoyant float data for the SPURS-1 N. Atlantic field campaign 1.0 NeutrallyBuoyantFloat CTD 2012-09-18 to 2013-02-22

N: 26 S: 21 E: -34 W: -39

1 Meters x 1 Meters netCDF-4
New Caledonia Pre-SWOT Level-4 Hourly MITgcm LLC4320 Native Grid 2km Oceanographic Dataset Version 1.0 1.0 MITgcm Computer 2011-09-13 to 2012-11-15

N: -22 S: -26 E: 171 W: 166

2 Kilometers x 2 Kilometers netCDF-4
Nimbus-7 CZCS Level-0 Raw Data, version 1 1 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

binary
Nimbus-7 CZCS Level-1A Data, version 2 2 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-2 Regional Ocean Color (OC) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Binned Chlorophyll (CHL) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Binned Diffuse Attenuation Coefficient of Downwelling Irradiance (KD) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Binned Remote-Sensing Reflectance (RRS) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Mapped Chlorophyll (CHL) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Mapped Diffuse Attenuation Coefficient of Downwelling Irradiance (KD) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
Nimbus-7 CZCS Level-3 Global Mapped Remote-Sensing Reflectance (RRS) Data, version 2022.0 2022.0 Nimbus-7 CZCS 1978-10-30 to 1986-06-22

N: 90 S: -90 E: 180 W: -180

netCDF-4
NIMBUS-7 SMMR GLOBAL AIR-SEA PARAMETERS IN SWATH (Wentz) 1 Nimbus-7 SMMR 1979-11-01 to 1984-09-30

N: 90 S: -90 E: 180 W: -180

60000 Meters x 60000 Meters RAW
NISAR Beta Radar Raw Signal Calibration Data (Version 1) 1 NISAR L-SAR, S-SAR 2021-01-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, YAML
NISAR Beta Radar Raw Signal Science Data (Version 1) 1 NISAR L-SAR, S-SAR 2021-01-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, XML, PDF, YAML
NISAR Ephemeral Archive Radar Raw Signal Calibration Data 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, YAML
NISAR Ephemeral Archive Radar Raw Signal Science Data 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, XML, PDF, YAML
NISAR Permanent Archive Radar Raw Signal Science Data 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, XML, PDF, YAML
NISAR Permanent Private Archive Radar Raw Signal Calibration Data 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, YAML
NISAR Provisional Custom Products 1 NISAR 2008-01-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5
NISAR Provisional Radar Raw Signal Calibration Data (Version 1) 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, YAML
NISAR Provisional Radar Raw Signal Science Data (Version 1) 1 NISAR L-SAR, S-SAR 2025-08-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, XML, PDF, YAML
NISAR Validated Radar Raw Signal Calibration Data (Version 1) 1 NISAR L-SAR, S-SAR 2025-10-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, YAML
NISAR Validated Radar Raw Signal Science Data (Version 1) 1 NISAR L-SAR, S-SAR 2025-10-01 to Present

N: 90 S: -90 E: 180 W: -180

HDF5, XML, PDF, YAML
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Surface Water and Ocean Topography (SWOT) Platform

SWOT provides detailed surface topography and monitors water body changes over time. The platform enables high-resolution ocean monitoring at 15-150 km spatial scales, tracking ocean currents, coastal dynamics, storm surges, and regional sea level changes. On land, SWOT measures water storage changes in lakes, reservoirs, rivers, and wetlands, supporting river discharge estimates for water resource assessment.

Discover more from SWOT
Earthdata grapic identifier on patterned background

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.

Ocean Data Tools

View All Data Tools
Tool Description Services
SOTO State of the Ocean (SOTO) is an interactive web-based tool that generates informative maps, animations, and plots that communicate and prove the discovery and analysis of the state of the oceans. Analysis, Search and Discovery, Visualization
STREAM STREAM is a rapid water quality monitoring tool that processes satellite imagery to create maps showing chlorophyll-a, Total Suspended Solids, and water clarity at 20-30 meter resolution. Processing
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
Worldview Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events
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