GPM AMSR-E on AQUA Common Calibrated Brightness Temperatures L1C 1.5 hours 10.5 km V05 (GPM_1CAQUAAMSRE) at GES DISC
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. 1CSSMIS contains common calibrated brightness temperature from the SSMIS passive microwave instruments flown on the DMSP satellites. Swath S1 has 3 low frequency channels (19V 19H 22V). Swath S2 has 2 low frequency channels (37V 37H). Swath S3 has 4 high frequency channels (150H 183+/-1H 183+/-3H 183+/-7H). S4 has 2 high frequency channels (91V 91H). All the above frequencies are in GHz. Earth observations for all four swaths are taken during a 144o segment of the instrument rotation when SSMIS scans in the direction of foreward satellite motion. We define the spacecraft vector (v) at the center of this segment.
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| Spatial Extent: | Bounding Rectangle: N: 90.0 S: -90.0 E: 180.0 W: -180.0 |
Data Format(s): | Distribution: HDF5 |
| Temporal Extent: | Platform(s): | Aqua | |
| Data Center(s): | NASA/GSFC/SED/ESD/GCDC/GESDISC | Instrument(s): | AMSR-E |
| Version: | 05 | ||
- Title: GPM AMSR-E on AQUA Common Calibrated Brightness Temperatures L1C 1.5 hours 10.5 km V05
- Creator: Wesley Berg
- Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
- Release Date: 2017-10-02T00:00:00.000Z
- Linkage: https://disc.gsfc.nasa.gov/datacollection/GPM_1CAQUAAMSRE_05.html
- READ-ME: https://gpm1.gesdisc.eosdis.nasa.gov/data/doc/README.GPM.pdf, README Document
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://pps.gsfc.nasa.gov/Documents/L1C_ATBD.pdf
- GENERAL DOCUMENTATION: https://pps.gsfc.nasa.gov/Documents/V05ReleaseNotes/L1C_V05_Release_Notes.pdf, Release Notes
- ANOMALIES: ftp://gpmweb2.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html, GPM and partner sensors anomalous events
- GENERAL DOCUMENTATION: https://aqua.nasa.gov/amsr-e, Instrument Description
Collection Information
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DOI
10.5067/GPM/AMSRE/AQUA/1C/05
- Search for granules from this collection
Data Identification
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Processing Level
1
- Quality The L1C products contain brightness temperatures that have been intercalibrated to a common basis and are no longer the original instrument brightness temperatures. Channels not relevant to precipitation retrievals are not included. The recalibration for most radiometers is a simple 2-point, linear adjustment. For the water vapor sounding channels, this is a simple offset. In the case of AMSR2, the adjustments are piecewise linear with more than two points to approximate the non-linear nature of the calibration of that instrument. The goal is to make the brightness temperatures consistent to 0.1K. That is not to say the calibration is accurate to this level; there are no suitable standards to assure absolute accuracy. The 0.1K level of consistency has been achieved in most cases, but in the case of the channels near 90 GHz, the uncertainty is somewhat greater. Also, some radiometers are not stable enough to permit this level of consistency.
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Collection Progress
Complete
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Use Constraints
The data in the 1AGMI file are not calibrated at all. Do not use these data unless they can be correctly calibrated and interpreted.
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Access Constraints
None
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Title: Intercalibration of the GPM Radiometer Constellation
Publication Date: 2016-01-01
Author(s): Berg, W. et al.
Series: J. Atmos. Oceanic Technol.
Volume: 33
Pages: 2639-2654
DOI: 10.1175/JTECH-D-16-0100.1
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Title: Fundamental Climate Data Records of Microwave Brightness Temperatures
Publication Date: 2018-01-01
Author(s): Berg, W., R. Kroodsma, C. D. Kummerow, and D. S. McKague
Series: Remote Sensing
Volume: 10(8)
Pages: 1306
DOI: 10.3390/rs10081306
Data Dates
| Creation | |
| Last Revision |
Publication References
Related URLs
Other Descriptive Keywords
Ancillary Keywords
- Atmosphere, Precipitation, Water Vapor
ISO Topic Categories
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| GPM | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
Location Keywords
- GEOGRAPHIC REGION
- TROPICS
Data Centers
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NASA/GSFC/SED/ESD/GCDC/GESDISC
ARCHIVERGoddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
Data Contacts
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WESLEY BERG
InvestigatorWESLEY BERG
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Colorado State University
Fort Collins, CO 80523
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ANDREY SAVTCHENKO
Metadata AuthorANDREY SAVTCHENKO
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Distributed Active Archive Center Global Change Data Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
301-614-5705
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GES DISC HELP DESK SUPPORT GROUP
Data Center ContactGES DISC HELP DESK SUPPORT GROUP
NASA/GSFC/SED/ESD/GCDC/GESDISC-
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
Greenbelt, MD 20771
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Archive And Distribution Information
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Format: HDF5
Format Type: Native
Media: Online Archive
Average File Size: 24 MB
Fees: None