PO.DAAC

Check out the recording of our latest Earthdata Webinar: Accessing Data for the World's Water with SWOT! Launched in December 2022, the Surface Water and Ocean Topography (SWOT) mission provides an unprecedented look at Earth's water. A joint undertaking by NASA and CNES (Centre National D'Etudes Spatiales) with contributions from CSA (the Canadian Space Agency) and the United Kingdom Space Agency, SWOT measurements for surface water extent and water body elevation for rivers, lakes, and the ocean are now publicly available for scientific research and applications.

From March 20th 2024, NOAA-20 is executing the Rephasing Maneuver, which takes approximately 15 days. During this time, NOAA-20 will not meet its orbit requirements. Users should exercise caution when using the NOAA-20 science data. Some missing granules and data degradation are expected.

The PO.DAAC is pleased to announce the availability of the version 6.0 SMAP Sea Surface Salinity (SSS) validated datasets from Remote Sensing Systems (RSS) and sponsored by the NASA Ocean Salinity Science Team. The SMAP satellite was launched on 31 January 2015 with a near-polar orbit at an inclination of 98 degrees and an altitude of 685 km.

Please be informed that the OSCAR third degree and 1 degree datasets will be retired from PO.DAAC in April. The datasets to be retired are:

• OSCAR_L4_OC_third-deg
• OSCAR_L4_OC_third-deg_YEARLY
• OSCAR_L4_OC_1deg

Users are encouraged to use the newest version, OSCAR Version 2.0, which provides daily averaged surface currents over a quarter degree grid. OSCAR Version 2.0 is available in three latencies below:

• OSCAR_L4_OC_NRT_V2.0
• OSCAR_L4_OC_INTERIM_V2.0
• OSCAR_L4_OC_FINAL_V2.0

Launched in December 2022, the Surface Water and Ocean Topography (SWOT) mission provides an unprecedented look at Earth's water. A joint undertaking by NASA and CNES (Centre National D'Etudes Spatiales) with contributions from CSA (the Canadian Space Agency) and the United Kingdom Space Agency, SWOT measurements for surface water extent and water body elevation for rivers, lakes, and the ocean are now publicly available for scientific research and applications.

The PO.DAAC is pleased to announce the availability of the Rongowai-CYGNSS Airborne Level 1 Science Data Record Version 1.0 dataset produced by the University of Auckland (UoA) Rongowai Science Payloads Operations Centre in New Zealand. The dataset contains the geo-located Delay Doppler Maps (DDMs) calibrated into Power Received (Watts) and Bistatic Radar Cross Section (BRCS) expressed in units of meters squared from the Delay Doppler Mapping Instrument onboard an Air New Zealand domestic Q300 (tail number ZK-NFA) flight.