GHRSST Level 3U Global Subskin Sea Surface Temperature from TMI onboard TRMM satellite
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| DOI | 10.5067/GHTMI-3UR71 |
| Short Name | TMI-REMSS-L3U-v7.1a |
| Description | 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, sea surface temperature (SST) and surface 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 processing orbit that results in day-to-day changes in the observation time of any given earth location between 38S and 38N. Remote Sensing Systems (REMSS) has produced a Version-7.1a TMI 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." |
| Version | 7.1a |
| Dataset Type | OPEN |
| Measurement | OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE > Skin Sea Surface Temperature |
| Processing Level | 3 |
| Coverage | Region: Global Northernmost Latitude: 90 degrees Southernmost Latitude: -90 degrees Westernmost Longitude: -180 degrees Easternmost Longitude: 180 degrees Time Span: 1997-Dec-08 to 2015-Jan-01 |
| Resolution | Spatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude) Temporal Resolution: |
| Projection | Type: Gridded Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
| Latency | 6 hours |
| Platform/Sensor | TRMM / Platform Name: Tropical Rainfall Measuring Mission (TRMM) Orbit Period: 92.4 minutes Inclination Angle: 35 degrees Ascending Node: 1998-Jan-01 13:30:00 TMI SENSOR Name: TRMM Microwave Imager (TMI) Swath Width: 878 km Description: The Tropical Rainfall Measuring Mission's (TRMM) Microwave Imager (TMI) is a passive microwave sensor designed to provide quantitative rainfall information over a wide swath under the TRMM satellite. |
| Project | Group for High Resolution Sea Surface Temperature (GHRSST) |
| Data Provider | Creator: Remote Sensing Systems (REMSS) Release Place: Santa Rosa, CA, USA Release Date: 2017-Nov-30 Resource: http://www.remss.com |
| Keyword(s) | CHRSST, REMSS, sea surface temperature, SST, L3U, GDS2 |
| Persistent ID | PODAAC-GHTMI-3UR71 |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
| User's Guide | |
| GDS2 User Manual | https://podaac-tools.jpl.nasa.gov/drive/files/OceanTemperature/ghrsst/docs/GDS20r5.pdf Documentation on the GDS version 2 format specification |
| Project Materials | |
| GHRSST Project | http://ghrsst.jpl.nasa.gov Portal to the GHRSST Global Data Assembly Center and data access |
| TMI Information | http://www.remss.com/missions/tmi Samples, Interface Control Document describing file contents, background ppt and other info |
| FAQs | |
| What is SST ? | https://podaac.jpl.nasa.gov/SeaSurfaceTemperature |
| Citation | Remote Sensing Systems (REMSS). 2017. GHRSST Level 3U Global Subskin Sea Surface Temperature from TMI onboard TRMM satellite. Ver. 7.1a. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/GHTMI-3UR71.
For more information see Data Citations and Acknowledgments.
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