GHRSST Level 2P Global Subskin Sea Surface Temperature from TRMM Microwave Imager (TMI) onboard Tropical Rainfall Measurement Mission (TRMM) satellite
(TMI-REMSS-L2P-v4)| Version | 4.0 |
| Processing Level | 2P |
| Start/Stop Date | 1998-Jan-01 to 2015-Jan-11 |
| Short Name | TMI-REMSS-L2P-v4 |
| Description | GDS2 Version -The Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) is a well calibrated passive microwave radiometer, similar to the Special Sensor Microwave Imager (SSM/I), that contains lower frequency channels required for sea surface temperature (SST) retrievals. The TRMM is part of the NASA's mission to planet Earth, and is a joint venture between NASA and the Japan Aerospace Exploration Agency (JAXA) to measure precipitation, water vapor, SST and wind in the global tropical regions and was launched in 27 November 1997 from the Tanegashima Space Center in Tanegashima, Japan. The TRMM satellite travels west to east in a 402 km altitude semi-equatorial precessing orbit that results in day-to-day changes in the observation time of any given earth location between 38S and 38N. Remote Sensing Systems has produced a Version-4 TMI ocean SST dataset for the Group for High Resolution Sea Surface Temperature (GHRSST) by applying an algorithm to the 10.7 GHz channel through a removal of surface roughness effects. In contrast to infrared SST observations, microwave retrievals can be measured through clouds, which are nearly transparent at 10.7 GHz. Microwave retrievals are also insensitive to water vapor and aerosols. The algorithm for retrieving SSTs from radiometer data is described in "AMSR Ocean Algorithm." |
| DOI | 10.5067/GHTMI-2PR04 |
| Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE |
| Swath Width | 878 km |
| Platform/Sensor | TRMM / Platform Name: Tropical Rainfall Measuring Mission (TRMM) Orbit Period: 92.4 minutes Inclination Angle: 35.0 degrees TMI SENSOR Name: TRMM Microwave Imager (TMI) Swath Width: 878.0 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: 2014-Dec-01 Resource: http://www.remss.com |
| Format | netCDF-4 |
| Keyword(s) | GHRSST, sea surface temperature, L2P, sst, surface temperature, tmi, gds2, remss |
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: 38N-38S North Bounding Coordinate: 39.01 degrees South Bounding Coordinate: -39.06 degrees West Bounding Coordinate: -179.99 degrees East Bounding Coordinate: 180 degrees Time Span: 1998-Jan-01 to 2015-Jan-11 Granule Time Span: 1998-Jan-01 to 2015-Jan-11Swath Width: 878 km Projection Projection Type: Satellite native swath Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
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Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/TMI-REMSS-L2P-v4/ | |
| podaac-ops-cumulus-public/TMI-REMSS-L2P-v4/ | |
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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 CITATION POLICY | |
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| DATA RECIPE | |
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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. 2014. TMI geolocated L2 swath SST data set. Ver. 4.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHTMI-2PR04
For more information see Data Citations and Acknowledgments.
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| Journal Reference | http://www.remss.com/missions/tmi . |
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