GHRSST Level 3U Global Subskin Sea Surface Temperature from GMI onboard GPM satellite
(GMI-REMSS-L3U-v8.2a)| Version | 8.2a |
| Processing Level | 3 |
| Start/Stop Date | 2014-Mar-04 to Present |
| Short Name | GMI-REMSS-L3U-v8.2a |
| Description | The Global Precipitation Measurement (GPM) satellite was launched on February 27th, 2014 with the GPM Microwave Imager (GMI) instrument on board. The GPM mission is a joint effort between NASA, the Japan Aerospace Exploration Agency (JAXA) and other international partners. In march 2005, NASA has chosen the Ball Aerospace and Technologies Corp., Boulder, Colorado to build the GMI instrument on the continued success of the Tropical Rainfall Measuring Mission (TRMM) satellite by expanding current coverage of precipitation from the tropics to the entire world. GMI is a dual-polarization, multi-channel, conical-scanning, passive microwave radiometer with frequent revisit times. One of the primary differences between GPM and other satellites with microwave radiometers is the orbit, which is inclined 65 degrees, allowing a full sampling of all local Earth times repeated approximately every 2 weeks. The GPM platform undergoes yaw maneuvers approximately every 40 days to compensate for the sun's changing position and prevent the side of the spacecraft facing the sun from overheating. Today, the GMI instrument plays an essential role in the worldwide measurement of precipitation and environmental forecasting. Sea Surface Temperature (SST) is one of its major products. The GMI data from the Remote Sensing System (REMSS) have been produced using an updated RTM, Version-8. The V8 brightness temperatures from GMI are slightly different from the V7 brightness temperatures; The SST datasets are available in near-real time (NRT) as they arrive, with a delay of about 3 to 6 hours, including the Daily, 3-Day, Weekly, and Monthly time series products. |
| DOI | 10.5067/GHGMI-3UR8A |
| Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE |
| Platform/Sensor | GPM / Platform Name: Global Precipitation Measurement Core Observatory (GPM) Orbit Period: 95.0 minutes Inclination Angle: 65.0 degrees GMI SENSOR Name: GPM Microwave Imager (GMI) Swath Width: 904.0 kilometers Description: Spacecraft angular distance from orbital plane relative to the Equator. |
| Project | Group for High Resolution Sea Surface Temperature (GHRSST) |
| Data Provider | Publisher: Remote Sensing Systems Creator: Remote Sensing Systems Release Place: Santa Rosa, CA, USA Release Date: 2017-Nov-30 Resource: http://www.remss.com |
| Format | netCDF-4 |
| Keyword(s) | GHRSST, sea surface temperature, SST, REMSS, GMI, GPM, L3U, GDS2 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 0.25 Decimal Degrees x 0.25 Decimal Degrees 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: 2014-Mar-04 to Present Granule Time Span: 2014-Mar-04 to 2024-Oct-02 Projection Projection Type: Satellite native swath Projection Detail: Geolocation information included for each pixel |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/GMI-REMSS-L3U-v8.2a/ | |
| podaac-ops-cumulus-public/GMI-REMSS-L3U-v8.2a/ | |
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| Name | Long Name | Unit |
|---|---|---|
| cloud_liquid_water | cloud liquid water | kg m-2 |
| confidence_flag | confidence flag | |
| 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 |
| proximity_confidence | proximity confidence value | |
| quality_level | quality level | |
| rain_rate | rain rate | mm hr-1 |
| rejection_flag | rejection flag | |
| sea_ice_fraction | sea ice fraction | 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 |
| DATA RECIPE | |
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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. 2017. GMI 25km gridded SST data set. Ver. 8.2a. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHGMI-3UR8A
For more information see Data Citations and Acknowledgments.
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| Journal Reference | http://www.remss.com/missions/gmi.html . |
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