Imaging · collection · 2026

GPM GMI_R Common Calibrated Brightness Temperatures Collocated L1C 1.5 hours 13 km V08 (GPM_1CGPMGMI_R)

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/gpm/gmi/r/1c/08

Version 08 is the current version of the data set.

Description

Older versions will no longer be available and have been superseded by Version 08. All 1C products have a common L1C data structure, simple and generic.

Each L1C swath includes scan time, latitude and longitude, scan status, quality, incidence angle, Sun glint angle, and the intercalibrated brightness temperature (Tc). One or more swaths are included in a product. The radiometer data are recalibrated to a common basis so that precipitation products derived from them are consistent. 1CGMI contains common calibrated brightness temperatures from the GMI passive microwave instrument flown on the GPM satellite. 1C-R GMI is a remapped version of 1CGMI which is explained at the end of this section.

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Swath S1 has 9 channels which are similar to TRMM TMI (10V 10H 19V 19H 23V 37V 37H 89V 89H). Swath S2 has 4 channels similar to AMSU-B (166V 166H 183+/-3V 183+/-8V). Data for both swaths is observed in the same revolution of the instrument.

GMI geometric footprints are: 12x13.4 km (10.65 GHz), 6.0x13.4 km (18.7 GHz), 6.0x13.4 km (23.8 GHz), 6.0x13.4 km (36.5 GHz), 3.0x13.4 km (89 GHz), 3.0x13.4 km (166.5 GHz), 3.0x13.4 km (183.31GHz). GPM Project cross-calibrates all channels at spatial sampling: 6x13 km (cross-track x along-track at forward bore sight).

Topics

Stated by source: Atmospheric Water Vapor · Brightness Temperature · Global Precipitation Measurement · GMI · Precipitation
From keywords: Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics

Provenance · 2 source records, 20 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C4054954370-GES_DISC	8 d ago	JSON v1
NASA Data Portal	e1af001d-36ff-4469-b866-95cc76110219	5 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
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:engineering	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[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

GPM GMI_R Common Calibrated Brightness Temperatures Collocated L1C 1.5 hours 13 km V08 (GPM_1CGPMGMI_R)

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