GPM DPR Ka-band Received Power L1B 1.5 hours 5 km V07 (GPM_PRL1KA) 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 Older versions are no longer available and have been superseded by Version 07. This product contains the calibrated received power from the Ka-band of the Dual-frequency Precipitation Radar (DPR) aboard the core satellite of the Global Precipitation Measurement (GPM) mission. One of the reasons for adding the Ka-band frequency (35.5 GHz) channel to the DPR is to provide information on the drop-size distribution that can be obtained from non-Rayleigh scattering effects at the higher frequency. Another reason for the new Ka-band channel is to provide more accurate estimates of the phase-transition height in precipitating systems. This information is very important not only in increasing the accuracy of rain rate estimation by the DPR itself, but in improving rain estimation by passive microwave radiometers. The Ka-band Radar has a more complex scanning geometry, defined by two modes: Matched (MS) and High-sensitivity (HS). In the first type of scan (MS), the Ka Radar beams are matched to the central 25 beams of the Ku Radar, providing a swath of 120 km (within the 245km swath of the Ku Radar). In the second type of scan (HS), the Ka is operated in the high-sensitivity mode to detect light rain and snow. In this case, its beams are interlaced within the matched scan pattern, resulting in 49 cross-track beams which, however, still cover the 120-km swath.

Resources

Name Format Description Link
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=GPM_PRL1KA_07
21 Access the data via the OPeNDAP protocol. https://gpm1.gesdisc.eosdis.nasa.gov/opendap/GPM_L1B/GPM_PRL1KA.07/contents.html
33 README Document https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L1B/doc/README.GPM.pdf
33 L1C_ATBD.pdf https://arthurhou.pps.eosdis.nasa.gov/Documents/L1C_ATBD.pdf
33 Release Notes https://pps.gsfc.nasa.gov/Documents/ReleaseNote_DPRL1_productV07A_2021117.pdf
21 GPM and partner sensors anomalous events https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html
34 Land Ratio from GPM for 06/15/2016 (GPM_PRL1KA) https://docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GPM_PRL1KA_05.png
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/GPM_PRL1KA_07.html
21 Access the data via HTTPS https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L1B/GPM_PRL1KA.07/
21 GPM Project Home Page https://gpm.nasa.gov
33 FILE SPECIFICATION DOCUMENT https://gpmweb2https.pps.eosdis.nasa.gov/pub/stout/helpdesk/filespec.GPM.V7.pdf
21 Instrument Description https://pps.gsfc.nasa.gov/gpminstruments.html

Tags

  • precipitation
  • atmospheric-water-vapor
  • atmosphere
  • spectral-engineering
  • microwave
  • earth-science

Topics

Categories