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
(AMSR2-REMSS-L2P_RT-v8.2)| Version | 8.2 |
| Processing Level | 2P |
| Start/Stop Date | 2012-Jul-02 to Present |
| Short Name | AMSR2-REMSS-L2P_RT-v8.2 |
| Description | This product provides a near-real-time (NRT) Level-2 Sea Surface Temperature (SST) (identified by "_rt_" 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 NRT SST is made as available as soon as possible, generally within 3 hours latency. The v8.2 supersedes the previous v8a dataset which can be found at https://www.doi.org/10.5067/GHAM2-2TR8A. |
| DOI | 10.5067/GHAM2-2TR82 |
| 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, NRT |
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-Oct-22Swath Width: 1450 km Projection Projection Type: Satellite native swath Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
| DIRECT ACCESS | |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/AMSR2-REMSS-L2P_RT-v8.2/ | |
| podaac-ops-cumulus-public/AMSR2-REMSS-L2P_RT-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 NRT SST from the AMSR2. Ver. 8.2. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHAM2-2TR82
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 |