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  • CYGNSS Level 2 Ocean Surface Heat Flux Science Data Record Version 2.0 Dataset

    PO.DAAC is pleased to announce the release of the CYGNSS L2 Ocean Surface Heat Flux Science Data Record (SDR) Version 2.0.

    This graphic illustrates information gathered from CYGNSS Level 2 Ocean Surface Heat Flux Science Data Record (SDR) Version 2.0 dataset release.
  • New PO.DAAC animation now available!

    Global Sea Surface Foundation Temperature v5.1 produced by the Remote Sensing Systems

    This graphic illustrates information gathered from the Remote Sensing Systems GHRSST L4 MW_OI SST derived from the microwave sensors (GPM and AMSR2)
  • Data in Action: New NASA Sea Surface Height Grids to Study the Climate

    Gridded maps of sea surface height (SSH) have widespread use among the scientific and operational oceanography and climate science communities, including monitoring the global mean sea level.

  • MEaSUREs Gridded Sea Surface Height Anomalies Version 2205 Dataset Release

    PO.DAAC is pleased to announce the public release of the JPL MEaSUREs Gridded Sea Surface Height Anomalies Level 4 Version 2205 dataset.

  • PO.DAAC Dataset Migration to Earthdata Cloud in AWS - Phase 4 - Batch 1

    PO.DAAC continues to migrate its data archive to NASA's Earthdata Cloud, hosted in Amazon Web Services (AWS).

    This graphic illustrates that the PO.DAAC data archive is being migrated to the NASA Earthdata Cloud.
  • Oceans Melting Greenland (OMG) Airborne and In Situ Field Campaign Datasets Release

    PO.DAAC is pleased to announce the release of multiple datasets from Oceans Melting Greenland (OMG).

    This image illustrates the OMG deployed probes from aircraft to measure temperature and conductivity in hard-to-reach areas near coastal Greenland.
  • PO.DAAC Dataset Migration to Earthdata Cloud in AWS - Phase 3 - Batch 2

    PO.DAAC continues to migrate its data archive to NASA's Earthdata Cloud, hosted in Amazon Web Services (AWS).

    This graphic illustrates that the PO.DAAC data archive is being migrated to the NASA Earthdata Cloud.
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Science Disciplines

  • Read below about Ocean Measurements Click on this icon to read more about Ocean Measurements
    Ocean
  • Read below about Cryosphere Measurements Click on this icon to read more about Cryosphere Measurements
    Cryosphere
  • Read below about Terrestrial Hydrosphere Measurements Click on this icon to read more about Terrestrial Hydrosphere Measurements
    Terrestrial Hydrosphere
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Ocean Measurements

The Ocean includes geophysical parameters that characterize the oceans (e.g., temperature, salinity, sea surface topography, circulation, etc.) as well as those physical processes operating within the Earth’s oceans and at its surface. Select from below to learn more about the related measurements.

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    Globe icon / screenshot representing Ocean Temperature Measurement
    Ocean Temperature
    Globe icon / screenshot representing Ocean Waves Measurement
    Ocean Waves
    Globe icon / screenshot representing Ocean Winds Measurement
    Ocean Winds
    Globe icon / screenshot representing Salinity/Density Measurement
    Salinity/Density
    Globe icon / screenshot representing Ocean Surface Topography Measurement
    Ocean Surface Topography
    Globe icon / screenshot representing Ocean Circulation Measurement
    Ocean Circulation
    Globe icon / screenshot representing Ocean Heat Budget Measurement
    Ocean Heat Budget
    Globe icon / screenshot representing Gravity/Gravitational Field Measurement
    Gravity/Gravitational Field
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    Cryosphere Measurements

    The Cryosphere includes the portions of Earth's surface where water is in solid form, including sea ice, snow cover, glaciers, ice sheets, and frozen ground. Select from below to learn more about the related measurements.

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    Globe icon / screenshot representing the featured (clicked) Measurement

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      Globe icon / screenshot representing Glaciers/Ice Sheets Measurement
      Glaciers/Ice Sheets
      Globe icon / screenshot representing Sea Ice Measurement
      Sea Ice
      Find Data

      Terrestrial Hydrosphere Measurements

      Terrestrial Hydrosphere includes water on the land surface and underground in the form of lakes, rivers, groundwater, and total water storage. Select from below to learn more about the related measurements.

      Find Data
      Globe icon / screenshot representing the featured (clicked) Measurement

      Learn More

        Globe icon / screenshot representing Surface Water Measurement
        Surface Water

        Announcements

        Aug
        04
        CYGNSS Level 2 Ocean Surface Heat Flux Science Data Record Version 2.0 Dataset Release

        PO.DAAC is pleased to announce the release of the CYGNSS Level 2 Ocean Surface Heat Flux Science Data Record (SDR) Version 2.0, which provides time-tagged and geolocated ocean surface heat flux parameters with 25x25 kilometer footprint resolution from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. The reported sample locations are determined by the specular points corresponding to the Delay Doppler Maps (DDMs).

        Aug
        03
        PO.DAAC Dataset Migration to Earthdata Cloud in AWS - OSCAR datasets

        As PO.DAAC continues to migrate its data archive to NASA’s Earthdata Cloud, hosted in Amazon Web Services (AWS), we are pleased to announce the addition of 3 new cloud datasets. In an effort to best support the users as they begin transitioning their workflows or data access points to a cloud-based process, PO.DAAC is making the existing datasets from its archive available from and within the Earthdata Cloud as soon as they are available. Information and tutorials about how to access these datasets can be found on the Cloud Data Migration Page.

        Aug
        01
        Sentinel-6 Michael Freilich Reprocessing Updates: Version 2 Completed, Version F Retired

        Reprocessed L1A, L1B and L2 altimetry data from the Sentinel-6 Michael Freilich/Jason CS radar altimeter mission were released through the PO.DAAC for the first time on July 28th, 2022. The new releases include Non-Time Critical (NTC) data reprocessed with the latest Sentinel-6 processing baseline (F06). The new datasets are considered Version 2; they replace the corresponding datasets initially released as Version F. Please see the previous release announcement from July 28th for additional information.

        Jul
        28
        Release Sentinel-6 Michael Freilich Reprocessing Datasets

        The PO.DAAC is pleased to announce the release of reprocessed L1A, L1B and L2 altimetry data from the Sentinel-6 Michael Freilich/Jason CS radar altimeter mission. This mission aims to provide high-precision measurements of global sea-level that build upon the extensive record of observation from the previous Jason series altimetry missions.

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