Imaging · collection · 2026

GPM SAPHIR on MT1 Common Calibrated Brightness Temperature L1C 1.5 hours 10 km V08 (GPM_1CMT1SAPHIR)

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/gpm/saphir/mt1/1c/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Older versions will no longer be available and have been superseded by Version 08. 1CAMSR2 contains common calibrated brightness temperature from the AMSR2 passive microwave instrument flown on the GCOMW1 satellite. This products contains 6 swaths.

Swath 1 has channels 10.65V 10.65H. Swath 2 has channels 18.7V 18.7H. Swath 3 has channels 23.8V 23.8H.

Read the rest (4 more)

Swath 4 has channels 36.5V 36.5H. Swath S5 has 2 high frequency A-Scan channels (89V 89H). Swath S6 has 2 high frequency B-Scan channels (89V 89H).

Data for all six swaths is observed in the same revolution of the instrument. High frequency A and high frequency B data are observed in separate feedhorns. 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.

SAPHIR geometric footprints are 10km x 10km for six channels near 183GHz. GPM Project cross-calibrates all channels at spatial sampling: 8x10 km.

Topics

Stated by source: Atmospheric Water Vapor · Megha-Tropiques · Precipitation · SAPHIR
From keywords: Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Inferred from text: Atmospheric sciences 68%

Provenance · 2 source records, 19 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C4054954435-GES_DISC	12 d ago	JSON v1
NASA Data Portal	736f2d00-d135-4596-ba53-f3a20c1693b9	10 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3701	enrichment · NASA CMR	taxonomy-embedding@1.1.0	title+keywords+description (68%)
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:saphir	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:mt1	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 SAPHIR on MT1 Common Calibrated Brightness Temperature L1C 1.5 hours 10 km V08 (GPM_1CMT1SAPHIR)

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