GHRSST Level 2P Global Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite
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Short NameAMSR2-REMSS-L2P-v8a
DescriptionThe Advanced Microwave Scanning Radiometer 2 (AMSR2) was launched on 18 May 2012, onboard the Global Change Observation Mission - Water (GCOM-W) satellite developed by the Japan Aerospace Exploration Agency (JAXA). The GCOM-W mission aims to establish the global and long-term observation system to collect data, which is needed to understand mechanisms of climate and water cycle variations, and demonstrate its utilization. AMSR2 onboard the first generation of the GCOM-W satellite will continue Aqua/AMSR-E observations of water vapor, cloud liquid water, precipitation, SST, sea surface wind speed, sea ice concentration, snow depth, and soil moisture. AMSR2 is a remote sensing instrument for measuring weak microwave emission from the surface and the atmosphere of the Earth. From about 700 km above the Earth, AMSR2 will provide us highly accurate measurements of the intensity of microwave emission and scattering. The antenna of AMSR2 rotates once per 1.5 seconds and obtains data over a 1450 km swath. This conical scan mechanism enables AMSR2 to acquire a set of daytime and nighttime data with more than 99% coverage of the Earth every 2 days. Remote Sensing Systems (RSS, or REMSS), providers of these SST data for the Group for High Resolution Sea Surface Temperature (GHRSST) Project, performs a detailed processing of AMSR2 instrument data in two stages. The first stage produces a near-real-time (NRT) product (identified by "_rt_" within the file name) which is made as available as soon as possible. This is generally within 3 hours of when the data are recorded. Although suitable for many timely uses the NRT products are not intended to be archive quality. "Final" data (currently identified by "v7.2" within the file name) are processed when RSS receives the atmospheric model National Center for Environmental Prediction (NCEP) Final Analysis (FNL) Operational Global Analysis. The NCEP wind directions are particularly useful for retrieving more accurate SSTs and wind speeds. This dataset adheres to the GHRSST Data Processing Specification (GDS) version 2 format specifications.
Dataset TypeOPEN
MeasurementOCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE > Sub-skin Sea Surface Temperature
Processing Level2P
CoverageRegion: Global
Northernmost Latitude: 90 degrees
Southernmost Latitude: -90 degrees
Westernmost Longitude: -180 degrees
Easternmost Longitude: 180 degrees
Time Span: 2012-Jul-02 to Present
Granule Time Span: 2012-Jul-02 to 2020-Jul-03
ResolutionSpatial Resolution: 25 km (Along) x 25 km (Across)
ProjectionType: Satellite native swath
Detail: Geolocation information included for each pixel
Ellipsoid: none
Latency6 hours
Swath Width1450000 m
Sample Frequency1.5
Temporal Repeat (Nominal)12 Hour
Temporal Repeat (Min)2 Hour
Temporal Repeat (Max)2 Day
Name: Global Change Observation Mission 1st - Water (SHIZUKU) (GCOM-W1)
Orbit Period: 100 minutes
Inclination Angle: 98.19 degrees
Ascending Node: 2010-Sep-26 13:30:00
Name: Advanced Microwave Scanning Radiometer 2 (AMSR2)
Swath Width: 1450 km
Description: Advanced Microwave Scanning Radiometer 2 (AMSR2) onboard the GCOM- W1

ProjectGroup for High Resolution Sea Surface Temperature (GHRSST)
Data ProviderCreator: Remote Sensing Systems
Release Place: Santa Rosa, CA, USA
Release Date: 2017-Oct-31
Keyword(s)GHRSST, sea surface temperature, L2P, SST, surface temperature, REMSS, AMSR2, GDS2, GCOM-W
Questions related to this dataset? Contact
User's Guide
GDS2 User Manual
Documentation on the GDS version 2 format specification
Project Materials
AMSR2 Information
AMSR2 SSTs: algorithm description, browsing of data, and ftp of data
ASMR2 Instrument
Full details of the AMSR2
What is SST?
Sea Surface Temperature measurement description.
Citation Remote Sensing Systems. 2017. GHRSST Level 2P Global Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite. Ver. 8a. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

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