Reconstructed GMSL from GRACE and In Situ 1900 to 2018 Dataset Release

2020-10-01

The PO.DAAC is pleased to announce the public release of Reconstructed Global Mean Sea Level (GMSL) from GRACE and In Situ observations 1900 to 2018. The dataset was produced by JPL scientist Thomas Frederikse and his colleagues for their recent Nature publication (Frederikse et al., 2020) under funding produced by NASA’s Making Earth System Data Records for Use in Research Environments (MEaSUREs) Program through a project called Heat and Ocean Mass from Gravity ESDR (HOMAGE).

Animation: Wind Speed from CYGNSS NOAA L2 v1.1 (2017-2020)

Animation of the NOAA CYGNSS Level 2 Science Wind Speed 25-km Product Version 1.1 dataset from 1 May 2017 to 23 September 2020, which provides the retrieved wind speed on a 25 kilometer grid obtained from the Delay Doppler Mapping Instrument (DDMI) aboard the CYGNSS satellite constellation. It can be accessed from the PO.DAAC Portal at https://podaac.jpl.nasa.gov/dataset/CYGNSS_NOAA_L2_SWSP_25KM_V1.1 (DOI: 10.5067/CYGNN-22511).

Data in Action: A Tale of Two Hurricanes in the Gulf of Mexico

At the end of August 2020, a unique event was observed in the Gulf of Mexico - the occurrence of two tropical cyclones within close spatio-temporal proximity to one another and their combined ocean response. Marco made landfall first, as a tropical storm on 24 August 2020, having weakened from a Category 1 hurricane before landfall. Laura made landfall on 27 August 2020 as a Category 4 hurricane, having intensified from a Category 2 within 24 hours prior to landfall.

Animation: Sea Surface Temperature Response to Tropical Cyclones Laura and Marco (2020)

Evolution of the NASA Multi-Scale Ultra-High Resolution (MUR) sea surface temperature (SST) anomaly response to Tropical Cyclones Laura and Marco in 2020. It is common to observe trails of cooler water, or cold wakes, along hurricane tracks as a result of wind-induced mixing and turbulence that brings cold waters at depth to the surface. The cold wakes associated with Laura and Marco are clearly observed as waters approximately 2°C cooler from normal across the entire eastern Gulf of Mexico that persisted for several days.

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