GHRSST Level 2P Global Subskin Sea Surface Temperature version 8.2 (v8.2) from the Advanced Microwave Scanning Radiometer 2 (AMSR2) by REMSS
(AMSR2-REMSS-L2P-v8.2)| Version | 8.2 |
| Processing Level | 2P |
| Start/Stop Date | 2012-Jul-02 to Present |
| Short Name | AMSR2-REMSS-L2P-v8.2 |
| Description | This product provides a “Final” (Refined) Level-2 Sea Surface Temperature (SST) (currently identified by "v8.2" within the file name) for the Group for High Resolution Sea Surface Temperature (GHRSST) Project, which is derived from the Advanced Microwave Scanning Radiometer 2 (AMSR2) by Remote Sensing Systems (RSS, or REMSS). 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. 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. The “Final” SSTs 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. The v8.2 supersedes the previous v8a dataset which can be found at https://www.doi.org/10.5067/GHAM2-2PR8A. |
| DOI | 10.5067/GHAM2-2PR82 |
| Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE |
| Swath Width | 1450 km |
| Platform/Sensor | GCOM-W1 / Platform Name: Global Change Observation Mission 1st-Water (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. |
| Project | Group for High Resolution Sea Surface Temperature (GHRSST) |
| Data Provider | Publisher: PO.DAAC Creator: Remote Sensing Systems Release Place: Santa Rosa, CA, USA Release Date: 2023-Jan-26 Resource: http://www.remss.com |
| Format | netCDF-4 |
| Keyword(s) | GHRSST, Sea Surface Temperature, L2P, SST, RSS, REMSS, AMSR2, GDS2, GCOM-W |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 25000 Meters x 25000 Meters Temporal Resolution: Hourly - < Daily Coverage Region: GLOBAL North Bounding Coordinate: 90 degrees South Bounding Coordinate: -90 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2012-Jul-02 to Present Granule Time Span: 2012-Jul-02 to 2024-Nov-22Swath Width: 1450 km Projection Projection Type: Satellite native swath Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/AMSR2-REMSS-L2P-v8.2/ | |
| podaac-ops-cumulus-public/AMSR2-REMSS-L2P-v8.2/ | |
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| Name | Long Name | Unit |
|---|---|---|
| cloud_liquid_water | cloud liquid water | kg m-2 |
| cool_skin | cool skin | K |
| diurnal_amplitude | estimated diurnal variability | K |
| dt_analysis | deviation from sst reference climatology | K |
| l2p_flags | L2P flags | |
| lat | latitude | degrees_north |
| lon | longitude | degrees_east |
| quality_level | quality_level | |
| rain_rate | rain rate | mm hr-1 |
| sea_surface_temperature | sea surface sub-skin temperature | K |
| sses_bias | SSES bias | K |
| sses_standard_deviation | SSES standard deviation | K |
| sst_dtime | time difference from reference time | second |
| time | reference time of sst file | seconds since 1981-01-01 00:00:00 |
| water_vapor | total columnar water vapor | kg m-2 |
| wind_speed | wind speed | m s-1 |
| GENERAL DOCUMENTATION | |
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| DATA RECIPE | |
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| USER'S GUIDE | |
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| DATA CITATION POLICY | |
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | Remote Sensing Systems. 2023. GHRSST Level 2P Global Subskin SST from the AMSR2. Ver. 8.2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHAM2-2PR82
For more information see Data Citations and Acknowledgments.
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| Journal Reference | Wentz, F.J. & Gentemann, C.L. & Hilburn, Kyle. 2005. Three years of ocean products from AMSR-E: evaluation and applications, IEEE Geosci. Remote Sens. Symp., 7. https://doi.org//10.1109/IGARSS.2005.1526780 Frank J. Wentz and Thomas Meissner. 2007. Algorithm Theoretical Basis Document for AMSR-E Ocean Algorithms, RSS Tech. Rpt. 051707. |
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| Version | Dataset | Version Date | Status | |
|---|---|---|---|---|
| 8a | GHRSST Level 2P Global Near-Real-Time Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite | 2021-06-14 | RETIRED. | 2021-06-14T18:17:00.000Z |
| 8a | GHRSST Level 2P Global Subskin Sea Surface Temperature version 8a from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite | 2021-06-15 | RETIRED. | 2021-06-15T17:05:00.000Z |
| 8.2 | GHRSST Level 2P Global Subskin Sea Surface Temperature version 8.2 (v8.2) from the Advanced Microwave Scanning Radiometer 2 (AMSR2) by REMSS | 2021-06-15 | ACTIVE | 2021-06-15T17:05:00.000Z |
| 8.2 | GHRSST Level 2P Global Near-Real-Time Subskin Sea Surface Temperature version 8.2 (v8.2) from the Advanced Microwave Scanning Radiometer 2 (AMSR2) on the GCOM-W satellite by REMSS | 2021-06-15 | ACTIVE | 2021-06-15T17:05:00.000Z |
| 7.2 | GHRSST Level 2P Global Subskin Sea Surface Temperature from the Advanced Microwave Scanning Radiometer 2 on the GCOM-W satellite | 2023-06-12 | RETIRED. | 2023-06-12T22:32:00.000Z |