PO.DAAC

The PO.DAAC is pleased to announce the public release of the NOAA/STAR GHRSST global 0.02-deg L3S-LEO_PM v2.80 dataset produced from Low Earth Orbiting (LEO) JPSS satellites (currently, NPP and N20) with VIIRS sensor onboard, replacing NOAA POES system with AVHRR GAC (4km/nadir).

The L3S LEO_PM (L3S: Level 3 “super-collated”) aggregates two individual global L3U SST datasets (10.5067/GHVRS-3UO61 and 10.5067/GHV20-3UO61). The dataset consists of two daily files, one daytime and one nighttime, corresponding to nominal JPSS local equator crossing times around 01:30/13:30, respectively, in netCDF-4 format compliant with the GHRSST Data Specification version 2 (GDS2).

The PO.DAAC is pleased to announce the release of the Multi-Mission Optimally Interpolated Sea Surface Salinity (OISSS) Level 4 V1.0 dataset. This dataset grids the Level-2 orbital swath data from the AQUARIUS/SAC-D mission (25 August 2011 to 7 June 2015), the Soil Moisture Active Passive (SMAP) mission (April, 2015 - present) and Soil Moisture and Ocean Salinity (SMOS) onto a 0.25-degree spatial and 4-day temporal grid using Optimal Interpolation (OI) .

NASA's Physical Oceanography Distributed Active Archive Center (PO.DAAC) is pleased to announce the initial release of datasets from the Sentinel-6 Michael Freilich/Jason CS radar altimeter mission, which aims to provide high-precision measurements of global sea-level that build upon the extensive record of observations from the previous Jason series altimetry missions.

Due to the recent release of the CYGNSS Climate Data Record (CDR) Version 1.1 (DOIs: 10.5067/CYGNS-L1C11, 10.5067/CYGNS-L2C11, 10.5067/CYGNS-L3C11) datasets, the forward processing of the Version 1.0 CDR (DOIs: ) datasets has ceased, resulting in a complete historical data record from 18 March 2017 to 28 February 2021.

The PO.DAAC is pleased to announce the public release of the updated Tellus JPL/GFZ/CSR GRACE and GRACE-FO Level-3 Monthly Ocean/Land Water-Equivalent-Thickness Surface-Mass Anomaly Release 6.0 (RL06) version 04 (v04) datasets. The Gravity Recovery and Climate Experiment (GRACE) mission is a joint partnership between NASA and the German Aerospace Center (DLR).