GHRSST Level 4 GAMSSA_28km Global Foundation Sea Surface Temperature Analysis v1.0 dataset (GDS2)
DOI10.5067/GHGAM-4FA1A
Short NameGAMSSA_28km-ABOM-L4-GLOB-v01
DescriptionA Group for High Resolution Sea Surface Temperature (GHRSST) Level 4 sea surface temperature analysis, produced daily on an operational basis at the Australian Bureau of Meteorology (BoM) using optimal interpolation (OI) on a global 0.25 degree grid. This Global Australian Multi-Sensor SST Analysis (GAMSSA) v1.0 system blends satellite SST observations from passive infrared and passive microwave radiometers with in situ data from ships, drifting buoys and moorings from the Global Telecommunications System (GTS). SST observations that have experienced recent surface wind speeds less than 6 m/s during the day or less than 2 m/s during night are rejected from the analysis. The processing results in daily foundation SST estimates that are largely free of nocturnal cooling and diurnal warming effects. Sea ice concentrations are supplied by the NOAA/NCEP 12.7 km sea ice analysis. In the absence of observations, the analysis relaxes to the Reynolds and Smith (1994) Monthly 1 degree SST climatology for 1961 - 1990.
Version1.0
Dataset TypeACTIVE
MeasurementOCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
Processing Level4
CoverageRegion: GLOBAL
North Bounding Coordinate: 90 degrees
South Bounding Coordinate: -90 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2008-Jul-23 to Present
Granule Time Span: 2008-Jul-23 to 2021-Apr-16
ResolutionSpatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude)
Temporal Resolution: 1 Day
ProjectionProjection Type: Cylindrical Lat-Lon
Projection Detail: Regular 0.25 degree grid
Ellipsoid: WGS 84
Platform/Sensor
InSitu
Platform
Name: InSitu (InSitu)
Orbit Period: -999.0 minutes
Inclination Angle: -999.0 degrees
/
InSitu
SENSOR
Name: Ships and Moored and Drifting Buoys (InSitu)
Swath Width: -999.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

SUOMI-NPP
Platform
Name: Suomi National Polar-orbiting Partnership (SUOMI-NPP)
Orbit Period: 101.0 minutes
Inclination Angle: 97.1 degrees
/
VIIRS
SENSOR
Name: Visible Infrared Imaging Radiometer Suite (VIIRS)
Swath Width: 3040.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

GCOM-W1
Platform
Name: Global Change Observation Mission 1st - Water (SHIZUKU) (GCOM-W1)
Orbit Period: 100.0 minutes
Inclination Angle: 98.19 degrees
/
AMSR2
SENSOR
Name: Advanced Microwave Scanning Radiometer 2 (AMSR2)
Swath Width: 1450.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

METOP-A
Platform
Name: Meteorological Operational Satellite - A (METOP-A)
Orbit Period: 101.3 minutes
Inclination Angle: 98.7 degrees
/
AVHRR-3
SENSOR
Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3)
Swath Width: 2400.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

NOAA-20
Platform
Name: National Oceanic & Atmospheric Administration-20 (NOAA-20)
Orbit Period: 102.0 minutes
Inclination Angle: 99.0 degrees
/
VIIRS
SENSOR
Name: Visible Infrared Imaging Radiometer Suite (VIIRS)
Swath Width: 3040.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

METOP-B
Platform
Name: Meteorological Operational Satellite - B (METOP-B)
Orbit Period: 101.3 minutes
Inclination Angle: 98.7 degrees
/
AVHRR-3
SENSOR
Name: Advanced Very High Resolution Radiometer-3 (AVHRR-3)
Swath Width: 2400.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderPublisher: Australian Bureau of Meteorology
Creator: Australian Bureau of Meteorology
Release Place: Australian Bureau of Meteorology, Melbourne, Australia
Release Date: 2019-Sep-18
Resource: http://www.bom.gov.au/australia/charts/bulletins/apob77.pdf

Keyword(s)GAMSSA, ABOM, AUS, GLOB, GHRSST, sea surface temperature, sst, gds2
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
GENERAL DOCUMENTATION
DATA CITATION POLICY
Citation Australian Bureau of Meteorology. 2019. BLUElink Global Australian Multi-Sensor SST Analysis (GAMSSA), daily, 1/4 degree resolution. Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHGAM-4FA1A

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For more information see Data Citations and Acknowledgments.

Journal Reference Zhong, Aihong and Helen Beggs (2008) Analysis and Prediction Operations Bulletin No. 77 - Operational Implementation of Global Australian Multi-Sensor Sea Surface Temperature Analysis, Web Document, 2 October 2008. http://www.bom.gov.au/australia/charts/bulletins/apob77.pdf