Imaging · collection · 2022
GPM GMI XCAL Common Calibrated Brightness Temperatures L1BASE 1.5 hours 13 km V07 (GPM_BASEGPMGMI_XCAL)
Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/gpm/gmi/base-xcal/07
Version 07 is the current version of the data set.
Description
Older versions are no longer available and have been superseded by the current version.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.
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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.
Links
Get the data
- Resource disc.gsfc.nasa.gov/datacollection/GPM_BASEGPMGMI_XCAL_07.html ↗
Access the dataset landing page from the GES DISC website.
landing page · download · from NASA CMR, data nasa gov
- Access the data via the OPeNDAP protocol cmr.earthdata.nasa.gov/virtual-directory/collections/C2259345466-GES_DISC/temporal ↗
metadata API · download · from NASA CMR
- GPM and partner sensors anomalous events gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html ↗
documentation · download · from NASA CMR, data nasa gov
- Release Notes arthurhou.pps.eosdis.nasa.gov/Documents/ReleaseNotesofGPM_Version07_GMI_TMI_BASE_1B_2.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- Instrument Description pps.gsfc.nasa.gov/gpminstruments.html ↗
documentation · download · from NASA CMR, data nasa gov
- README Document gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L1BASE/doc/README.GPM.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- FILE SPECIFICATION DOCUMENT gpmweb2https.pps.eosdis.nasa.gov/pub/GPMfilespec/filespec.GPM.pdf ↗
documentation · download · from NASA CMR, data nasa gov
- search.earthdata.nasa.gov /search/granules?p=C2259345466-GES_DISC ↗
Earthdata Search allows users to search, discover, visualize, refine, and access NASA Earth Observation data.
download · from NASA CMR
- Original Metadata cmr.earthdata.nasa.gov/search/concepts/C2259345466-GES_DISC.iso19115 ↗
download · from data nasa gov
- PNG docserver.gesdisc.eosdis.nasa.gov/public/project/Images/GPM_BASEGPMGMI_XCAL_05.png ↗
Brightness Temperature from GPM GMI (13 km x 13 km) for 06/30/2016 (GPM_BASEGPMGMI_XCAL)
download · preview image · from data nasa gov, NASA CMR
- Resource gpm.nasa.gov ↗
download · project · from data nasa gov, NASA CMR
Where it is published
- NASA Data Portal dataset page data.nasa.gov/dataset/gpm-gmi-xcal-common-calibrated-brightness-temperatures… ↗
landing page · from data nasa gov
- DOI doi.org/10.5067/gpm/gmi/base-xcal/07 ↗
DOI / persistent id · from NASA CMR
Catalogue records · 3
- CKAN API data.nasa.gov/api/3/action/package_show?id=7fb98363-2c9c-4ac8-8d9b-df55a7d8d… ↗
metadata API · from data nasa gov
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2259345466-GES_DISC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2259345466-GES_DISC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Atmospheric Water Vapor · Global Precipitation Measurement · GMI · Precipitation
- From keywords
- Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
- Inferred from text
- Hydrology 69%
Provenance · 2 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2259345466-GES_DISC | 12 d ago | JSON v1 |
| NASA Data Portal | 7fb98363-2c9c-4ac8-8d9b-df55a7d8d606 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3707 | enrichment · NASA CMR | taxonomy-embedding@1.0.0 | title+keywords+description (69%) |
| concepts[field].local:field:astronomy | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · data nasa gov | connector:data_nasa_gov@1.0.0 | |
| concepts[field].local:field:physics | mapping · data nasa gov | connector:data_nasa_gov@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[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 |