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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
GRACE NON-TIDAL OCEAN GEOPOTENTIAL COEFFICIENTS GFZ RELEASE 6.0 GAB 6.0 GRACE 2002-04-05 to 2017-07-01

N: 88 S: -88 E: 180 W: -180

500 Kilometers x 500 Kilometers ASCII
GRACE NON-TIDAL OCEAN GEOPOTENTIAL COEFFICIENTS JPL RELEASE 6.0 GAB 6.0 GRACE KBR 2002-04-04 to 2017-06-30

N: 88 S: -88 E: 180 W: -180

500 Kilometers x 500 Kilometers ASCII
GRACE OCEAN BOTTOM GEOPOTENTIAL COEFFICIENTS CSR RELEASE 6.0 GAD 6.0 GRACE 2002-04-05 to 2017-06-30

N: 88 S: -88 E: 180 W: -180

500 Kilometers x 500 Kilometers ASCII
GRACE OCEAN BOTTOM GEOPOTENTIAL COEFFICIENTS GFZ RELEASE 6.0 GAD 6.0 GRACE 2002-04-05 to 2017-07-01

N: 88 S: -88 E: 180 W: -180

500 Kilometers x 500 Kilometers ASCII
GRACE OCEAN BOTTOM GEOPOTENTIAL COEFFICIENTS JPL RELEASE 6.0 GAD 6.0 GRACE 2002-04-04 to 2017-06-30

N: 88 S: -88 E: 180 W: -180

500 Kilometers x 500 Kilometers ASCII
GRACE/GRACE-FO Level-4 Monthly Global Ocean Mass Anomaly version 01 from NASA MEaSUREs HOMaGE project 1.0 GRACE-FO, GRACE 2002-04-17

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

360 Decimal Degrees x 180 Decimal Degrees netCDF-4
GRACE/GRACE-FO Level-4 Monthly Gravitational-Rotational-Deformation version 01 from NASA MEaSUREs HOMaGE 1.0 GRACE-FO, GRACE GRACE-FO MWI, GRACE INTERFEROMETER 2002-04-16 to Present

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

0.5 Decimal Degrees x 0.5 Decimal Degrees netCDF-4
Great Belt research cruise in the Southern Ocean 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2011-01-13 to Present

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

Great Lakes Ocean Color Validation 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2025-01-01 to Present

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

Gridded Altimeter Fields with Enhanced Coastal Coverage 1 OSTM/JASON-2, TOPEX/POSEIDON, JASON-1 POSEIDON-3, SSALT, POSEIDON-2 1992-10-14 to 2012-04-18

N: 48.5 S: 35.25 E: 180 W: -111.5

,

N: 48.5 S: 35.25 E: -132.25 W: -180

0.25 Decimal Degrees x 0.25 Decimal Degrees netCDF-4
Gridded Altimeter Fields with Enhanced Coastal Coverage Daily 1 OSTM/JASON-2, TOPEX/POSEIDON, JASON-1 POSEIDON-3, SSALT, POSEIDON-2 1992-10-14 to 2011-01-19

N: 49 S: 35 E: -111 W: -133

0.25 Decimal Degrees x 0.25 Decimal Degrees netCDF-4
GRIP HURRICANE IMAGING RADIOMETER (HIRAD) V1 1 NASA WB-57F HIRAD 2010-09-01 to 2010-09-16

N: 30.1404 S: 18.2751 E: -71.0313 W: -95.5915

netCDF-3
Gross Primary Production Maps of Tidal Wetlands across Conterminous USA, 2000-2019 1 Terra, MODELS MODIS, Computer 2000-03-05 to 2019-11-17

N: 47.6967 S: 23.5017 E: -65.9019 W: -128.026

GeoTIFF
Groundswell Africa Spatial Population and Migration Projections at One-Eighth Degree According to SSPs and RCPs, 2010-2050 1.00 MODELS Computer 2010-01-01 to 2050-12-31

N: 37.21 S: -34.51 E: 51.27 W: -17.33

Geodatabase
Groundswell Spatial Population and Migration Projections at One-Eighth Degree According to SSPs and RCPs, 2010-2050 1.00 MODELS Computer 2010-01-01 to 2050-12-31

N: 56 S: -56 E: 180 W: -180

Geodatabase, GeoPackage, PDF, PNG
Gulf of Alaska measurements in 1997 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 1997-10-10 to Present

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

Gulf of California (GOC) measurements in 2003 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2003-02-19 to Present

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

Gulf of California long-term sampling program 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 1995-11-29 to Present

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

Gulf of Guinea climate and ocean circulation study (EGEE) project - Gulf of Guinea off of west-central Africa 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2006-05-29 to Present

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

Gulf of Guinea climate and ocean circulation study (EGEES) 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2007-06-06 to Present

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

Gulf of Maine measurements in 2007 under the BIODIVERSITY program 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2007-04-26 to Present

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

Gulf of Maine measurements in 2008 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2008-04-07 to Present

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

Gulf of Maine North Atlantic Time Series (GNATS) 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2001-06-26 to Present

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

Gulf of Maine nutrient measurements from 1933 to 1991 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 1933-09-05 to Present

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

Gulf of Maine optical measurements between 2004 and 2007 0 BUOYS, MOORINGS, Water-based Platforms, AUVS, ROVS, Ships 2005-06-08 to Present

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

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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

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Tool Description Services
AppEEARS The Application for Extracting and Exploring Analysis Ready Samples (AppEEARS) offers a simple and efficient way to perform data access and transformation processes. Search and Discovery, Subsetting, Customization, Downloading, Visualization
CASEI The Catalog of Archived Suborbital Earth Science Investigations (CASEI) is a comprehensive inventory of contextual information for NASA's Earth Science airborne and field campaigns. Search and Discovery, Cataloging
CyAN File Search The CyAN File Search tool allows users to choose an area over the continental United States and Alaska to retrieve cyanobacteria datasets archived by the Cyanobacteria Assessment Network (CyAN) project. Analysis, Search and Discovery, Visualization
CyFi Explorer CyFi Explorer enables users to view corresponding Sentinel-2 satellite imagery for each cyanobacteria estimate, and estimate cyanobacteria density. Analysis, Search and Discovery, Visualization
Giovanni Giovanni is a web application for accessing, visualizing, and analyzing Earth science remote sensing data without downloading the data. Search and Discovery, Analysis, Access, Visualization, Downloading, Subsetting
Hydrocron Hydrocron is an API that repackages hydrology datasets from SWOT into formats that make time-series analysis easier. Subsetting, Visualization
Ocean Color Level 3 and 4 Browser The Ocean Color Level 3 and 4 Browser allows users to view, download, or order global composites at various spatial and temporal scales (level 3) or get results from analyses of lower-level data (level 4). Analysis, Search and Discovery, Visualization
Panoply Panoply is a cross-platform application that plots geo-referenced and other arrays from netCDF, HDF, GRIB, and other datasets. Visualization, Customization, Reformatting, Subsetting, Comparison
SeaBASS SeaBASS is public archive of ocean and atmosphere data captured in situ. The archive is maintained by NASA's Ocean Biology Processing Group (OBPG). Downloading
SeaDAS Sea, earth, atmosphere Data Analysis System (SeaDAS) is a comprehensive image analysis package for the processing, display, analysis, and quality control of ocean color data. Analysis, Visualization, Processing
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