GPCP Precipitation Level 3 Monthly 0.5-Degree V3.0 beta (GPCPMON) at GES DISC
The Global Precipitation Climatology Project (GPCP) is the precipitation component of an internationally coordinated set of (mainly) satellite-based global products dealing with the Earth's water and energy cycles, under the auspices of the Global Water and Energy Experiment (GEWEX) Data and Assessment Panel (GDAP) of the World Climate Research Program. As the follow on to the GPCP Version 2.X products, GPCP Version 3 (GPCP V3.0) beta seeks to continue the long, homogeneous precipitation record using modern merging techniques and input data sets. The GPCPV3 suite currently consists the 0.5-degree monthly. Follow-on products may be added, which consist of (1) 0.5-degree pentad, (2) 0.5-degree daily, and (3) 0.1-degree 3-hourly. All GPCPV3 products will be internally consistent. The monthly product spans 1983 - 2016. Inputs consist of the GPROF SSMI/SSMIS orbit files that are used to calibrate the PERSIANN-CDR IR-based precipitation in the span 60NS. Outside of 58NS, TOVS/AIRS estimates, calibrated by the IR estimates and the GPCC gauge analyses are used. This satelite-only estimate is then merged with GPCC gauge analyses over land to compute the final product. In addition to the final precipitation field, ancillary precipitation and error estimates are provided.
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| Spatial Extent: | Bounding Rectangle: N: 90 S: -90 E: 180 W: -180 |
Data Format(s): | Distribution: netCDF |
| Temporal Extent: | Platform(s): | DMSP, NOAA POES, Aqua, GOES, METEOSAT, GMS, MTSAT, Himawari-8, WEATHER STATIONS | |
| Data Center(s): | NASA/GSFC/SED/ESD/GCDC/GESDISC | Instrument(s): | SSMIS, SSM/I, TOVS, AIRS, GOES-15 Imager, GOES-16 Imager, VISSR-METEOSAT, VISSR-GMS, MTSAT 1R Imager, MTSAT 2 Imager, AHI, RAIN GAUGES |
| Version: | 3.0 | ||
- Title: GPCP Precipitation Level 3 Monthly 0.5-Degree V3.0 beta
- Version: 3.0
- Creator: George J. Huffman and David T. Bolvin
- Editor: George J. Huffman and David T. Bolvin
- Publisher: NASA GES DISC
- Release Date: 2019-03-08T00:00:00.000Z
- Linkage: https://disc.gsfc.nasa.gov/datacollection/GPCPMON_3.0.html
- READ-ME: https://measures.gesdisc.eosdis.nasa.gov/data/GPCP/GPCPMON.3.0/doc/README.GPCPV3.0.pdf, README document
- ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD): https://docserver.gesdisc.eosdis.nasa.gov/public/project/MEaSUREs/GPCP/GPCP_ATBD_V3.0.pdf, The ATBD document
Collection Information
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Version Description
GPCPV3.0 the beta version (inaugural) -
DOI
10.5067/TTO0VJF2FSYR
- Search for granules from this collection
Data Identification
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Processing Level
3
- Quality A rudimentary estimate of the quality of the precipitation estimates is provided in the combined satellite-gauge precipitation random error field. The method used to estimate the random error is based on the technique described in Huffman (1997). In general, estimating meaningful error is a difficult prospect and is currently the subject of intensive research. Since inception, the GPCP has strived to maintain CDR standards in all its data sets, despite not officially being a CDR. Homogeneity in the record takes precedence over instantaneous accuracy. Over the long-term, GPCP represents the current state of the art. GPCP estimates are most accurate in the tropics, and less so in the subtropics and mid-latitudes. Above 58N and below 58S, the estimates are more approximate. High-quality gauge analyses are incorporated to vastly improve the estimates over land. Note that the land estimates are of lesser quality in the more challenging regions such as complex terrain and snow and ice covered surfaces. The GPCP estimates are most appropriate for studies where a long record is necessary, but less useful for short-interval studies and the examination of extremes.
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Collection Progress
Complete
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Use Constraints
The *data access policy* is "freely available" with three common-sense caveats: 1. The data set source should be acknowledged when the data are used. The American Meteorological Society guidelines contain suggested formats for referencing data sets (https://www.ametsoc.org/ams/index.cfm/publications/authors/journal-and-bams-authors/formatting-and-manuscript-components/references/dataset-references/). Following their example for data that are dynamically updated without distinct versions: Huffman, G.J., D.T. Bolvin, E.J. Nelkin, 2019: GPCP Version 3.0 SG Combined Precipitation Data Set, last updated <date>. GES DISC, Greenbelt, MD, accessed <date>, https://doi.org/10.5067/TTO0VJF2FSYR 2. New users are urged to obtain their own current, clean copy from an official archive, rather than taking a version from a third party that might be damaged or out of date. 3. Errors and difficulties in the original datasets should be reported to the dataset creators. Access and format issues at third-party sites should be directed to their contacts.
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Access Constraints
None
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Title: Algorithm Theoretical Basis Document (ATBD) for Global Precipitation Climatology Project Version 3.0 Precipitation Data
Publication Date: 2019-03-14
Author(s): Huffman, G.J., R.F. Adler, D.T. Bolvin, K. Hsu, C. Kidd, E.J. Nelkin, J. Tan, P. Xie
Data Dates
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| Last Revision |
Publication References
Related URLs
Other Descriptive Keywords
ISO Topic Categories
- CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
Acquisition Information
Projects
| Project Short Name | Campaigns | Project Dates |
|---|---|---|
| MEaSUREs | No campaigns listed. | No dates provided. |
Temporal Information
Spatial Information
| Coverage Type | Zone Identifier | Geometry | Granule Representation |
|---|---|---|---|
| HORIZONTAL | CARTESIAN | CARTESIAN |
Location Keywords
- GEOGRAPHIC REGION
- GLOBAL
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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GEORGE HUFFMAN
InvestigatorGEORGE HUFFMAN
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NASA Goddard Space Flight Center
Mailstop 612
Greenbelt, MD 20771
301-614-6308
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ZHONG LIU
Metadata AuthorZHONG LIU
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NASA
Goddard Space Flight Center
Mailstop 610.2
Greenbelt, MD 20771
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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, Maryland 20771
301-614-5224
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Archive And Distribution Information
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Format: netCDF
Format Type: Native
Media: Online Archive
Fees: None