GPM DPR Ka Environment L2A 1.5 hours 5 km V07 (GPM_2AKaENV) at GES DISC

Description

Version 07 is the current version of the data set. Older versions will no longer be available and have been superseded by Version 07. . This is environmental data that includes the profiles of atmospheric parameters assumed in the L2 retrieval algorithm. The 2AKa algorithm provides precipitation estimates from the Ka radar of the Dual-Frequency Precipitation Radar on the core GPM spacecraft. The product contains two swaths of data corresponding to the scans of the Ka radar. The first swath contains matched scans (MS), which are intended to be co-aligned with the Ku-band instantaneous fields of view (IFOV). The second swath contains the high-sensitivity scans (HS), which are interleaved between the Ku/Ka-MS swaths. Both swaths are narrow and centered within the interior of the Ku swath. This is a single-frequency retrieval of precipitation; no information from the Ku radar is used. The retrievals are performed at each radar range bin along the slant path of the radar IFOV for each swath. This is a single-frequency retrieval that relies on Ka-band data only. While the 2ADPR dual-frequency retrieval should give better overall estimates, that algorithm requires co-aligned Ku-band data. This 2AKa product will be produced independently and would not be impacted by any operational issues with the Ku-band radar. The high sensitivity to smaller hydrometeors should result in precipitation estimates in lighter precipitation than the Ku-only data.

Resources

Name Format Description Link
21 Instrument Description https://pps.gsfc.nasa.gov/gpminstruments.html
21 Access the dataset landing page from the GES DISC website. https://disc.gsfc.nasa.gov/datacollection/GPM_2AKaENV_07.html
21 Access the data via HTTPS https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L2/GPM_2AKaENV.07
21 Access the data via the OPeNDAP protocol https://gpm1.gesdisc.eosdis.nasa.gov/opendap/GPM_L2/GPM_2AKaENV.07/contents.html
33 FILE SPECIFICATION DOCUMENT https://gpmweb2https.pps.eosdis.nasa.gov/pub/stout/helpdesk/filespec.GPM.V7.pdf
21 GPM and partner sensors anomalous events https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html
34 GPM_2AKaENV.png https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/browse/GPM_2AKaENV.png
21 Use the Earthdata Search to find and retrieve data sets across multiple data centers. https://search.earthdata.nasa.gov/search?q=GPM_2AKaENV_07
21 GPM Project Home Page https://gpm.nasa.gov

Tags

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

Topics

Categories