Open Data Access
ERDDAP Data Server
The ERDDAP data server provides a simple, consistent way to subset and download environmental datasets in common file formats with options to make graphs and maps.
Notice: PolarWatch Operations Transition – Effective May 15, 2026
On May 15, 2026, PolarWatch operations will transition from the NOAA Southwest Fisheries Science Center (SWFSC) to the NOAA NESDIS CoastWatch Central program.
PolarWatch will continue to provide access to cryosphere datasets through the PolarWatch catalog.
The PolarWatch ERDDAP service (https://polarwatch.noaa.gov/erddap/index.html) will be retired on May 15, 2026. Datasets currently available through the PolarWatch ERDDAP will continue to be served through the following CoastWatch ERDDAP services:
A table listing the transitioning dataset URLs can be found here. Please note that this table may be updated periodically as the transition progresses.
For questions, please contact coastwatch.info@noaa.gov.
Latest BioGeoChemical-Argo Float data Latest Snapshot Archive (2026-01-04) of the BioGeoChemical-Argo Float data from SOCCOM and UW-MBARI is now available on our Data Server. Check out our Data Portal. January 28, 2026
Laser/Radar Altimeter (LaRA) Arctic Monthly Snow Depth Means Now Available!
Monthly mean LaRA snow depth data for the Arctic winter months (November through April) are now accessible.
These 5-year climatological monthly means were created by averaging satellite-derived snow depths from five winters spanning 2018–2023, using integrated observations from ICESat-2 and CryoSat-2.
Check out the data (ESA algorithm, AWI algorithm)
June 15, 2025
Join us live for CoastWatch Office Hours, a Q&A session on data access and CoastWatch tutorials. Click here for more information. June 15, 2025
The ERDDAP data server provides a simple, consistent way to subset and download environmental datasets in common file formats with options to make graphs and maps.