Data · collection · 2026
GPM DPR Ka-band Received Power L1B 1.5 hours 5 km V08 (GPM_PRL1KA)
Listed in NASA Earthdata CMR
Version 08 is the current version of the data set.
Description
Older versions are no longer available and have been superseded by Version 08. 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.
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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.
Links
Get the data
- Access the data via HTTPS cmr.earthdata.nasa.gov/virtual-directory/collections/C4054953914-GES_DISC ↗
download · from NASA CMR
- search.earthdata.nasa.gov /search/granules?p=C4054953914-GES_DISC&q=GPM_PRL1KA_08 ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
Where it is published
- disc.gsfc.nasa.gov /datacollection/GPM_PRL1KA_08.html ↗
Access the dataset landing page from the GES DISC website.
landing page · from NASA CMR
Documentation and papers
- Release Notes pps.gsfc.nasa.gov/Documents/ReleaseNote_DPRL1_productV08.pdf ↗
documentation · from NASA CMR
- README Document docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/README.GPM.pdf ↗
documentation · from NASA CMR
- Algorithm Theoretical Basis Document arthurhou.pps.eosdis.nasa.gov/Documents/ATBD_DPR_L2_V08A.pdf ↗
documentation · from NASA CMR
- GPM and partner sensors anomalous events gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html ↗
documentation · from NASA CMR
- Instrument Description pps.gsfc.nasa.gov/gpminstruments.html ↗
documentation · from NASA CMR
- FILE SPECIFICATION DOCUMENT gpmweb2https.pps.eosdis.nasa.gov/pub/GPMfilespec/filespec.GPM.pdf ↗
documentation · from NASA CMR
- GPM Project Home Page gpm.nasa.gov ↗
project · from NASA CMR
- Land Ratio from GPM for 06/15/2016 (GPM_PRL1KA) docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GPM_PRL1KA_05.png ↗
preview image · from NASA CMR
Catalogue records · 3
- Access the data via the OPeNDAP protocol. cmr.earthdata.nasa.gov/virtual-directory/collections/C4054953914-GES_DISC/temporal ↗
metadata API · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C4054953914-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C4054953914-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Water Vapor · Brightness Temperature · Global Precipitation Measurement · GMI · Precipitation
Related
- Possibly the same asGPM DPR Ka-band Received Power L1B 1.5 hours 5 km V08 (GPM_PRL1KA)
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C4054953914-GES_DISC | 7 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:gmi | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/atmosphere/precipitation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/spectral-engineering/microwave/brightness-temperature | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:gpm | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| created_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| updated_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |