GPM GMI XCAL Common Calibrated Brightness Temperatures L1BASE 1.5 hours 13 km V07 (GPM_BASEGPMGMI_XCAL) at GES DISC

Description

Version 07 is the current version of the data set. Older versions are no longer available and have been superseded by the current version. Consistent rainfall retrievals from each instrument mandate the basic sensor radiance measurements (brightness temperature, Tb) to be consistently inter-calibrated. Fundamental to this concept is the existence of the GPM Microwave Imager (GMI), a conically scanning multifrequency radiometer in non-sun-synchronous orbit, which serves as a radiometric transfer standard for the other passive microwave sensors on cooperative (polar orbiting) constellation satellites. This GPM inter-satellite calibration process is known as XCAL. GMIBASEXCAL is the standard GMI calibration product with reduced precision of all physical fields. It consists of one full orbit with no overlaps to other orbits in the production although up to 200 overlap scans may be used for multi-scan calibration in the process. This GPM GMI product contains "GMI Antenna Temperatures", and is written as a multi-Swath Structure. Swath S1 has channels 1-9: 10V 10H 19V 19H 23V 37V 37H 89V 89H. Swath S2 has channels 10-13: 166V 166H 183+/-3V 183+/-8V. S3 S4 are full rotation versions of S1 S2.

Resources

Name Format Description Link
21 GPM Project Home Page https://gpm.nasa.gov
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/GPM_BASEGPMGMI_XCAL_07.html
21 Access the data via HTTPS https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L1BASE/GPM_BASEGPMGMI_XCAL.07/
21 Access the data via the OPeNDAP protocol https://gpm1.gesdisc.eosdis.nasa.gov/opendap/GPM_L1BASE/GPM_BASEGPMGMI_XCAL.07/contents.html
33 README Document https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L1BASE/doc/README.GPM.pdf
33 FILE SPECIFICATION DOCUMENT https://gpmweb2https.pps.eosdis.nasa.gov/pub/GPMfilespec/filespec.GPM.pdf
33 Release Notes https://arthurhou.pps.eosdis.nasa.gov/Documents/ReleaseNotesofGPM_Version07_GMI_TMI_BASE_1B_2.pdf
21 GPM and partner sensors anomalous events https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html
21 Instrument Description https://pps.gsfc.nasa.gov/gpminstruments.html
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=GPM_BASEGPMGMI_XCAL_07
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FGPM%2FGMI%2FBASE-XCAL%2F07
34 Brightness Temperature from GPM GMI (13 km x 13 km) for 06/30/2016 (GPM_BASEGPMGMI_XCAL) https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GPM_BASEGPMGMI_XCAL_05.png

Tags

  • precipitation
  • atmospheric-water-vapor
  • atmosphere
  • earth-science

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