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Gridded Global Land Surface Precipitation Data based on in-situ raingauge observations.

Entry ID: DWD-GPCC

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Summary

Abstract: [Text from: U. Schneider, T. Fuchs, A. Meyer-Christoffer, B. Rudolf: Global Precipitation Analysis Products of the GPCC, Global Precipitation Climatology Centre (GPCC), Deutscher Wetterdienst, Offenbach a. M., Germany, July 2008.]

The new Global Precipitation Climatology is focussing on the period 1951-2000 and consists of data from ca. 50,300 stations. The climatology comprises ... normals collected by WMO (CLINOs), delivered by the countries to GPCC or calculated from time-seriesof monthly data (with at least 10 complete years of data) available in our data base. In case that time series of sufficient length (more than 40 years) for the period 1951-2000 were not available from a specific station, then climatological normals have also been calculated for 30-year reference periods 1961-1990, 1951-1980 or 1971-2000 with at least 20 years of data. If even this was not possible for a station, then normals have been calculated for the period 1931-1960, or for any other period with at least 10 complete years of data.

The Monitoring Product of monthly precipitation for global climate monitoring is based on SYNOP and monthly CLIMAT reports received near-realtime via GTS from about 7,500 stations (after high level QC) and is available within about 2 months after observation month. This is the GPCC product with the longest history: Operational monthly analysis started with year 1986 and has continuously been done every month since then. The analyses are based on intensive automatic and manual quality control of the input data. The GPCC Monitoring Product is the in situ component to the satellite-gauge com-
bined precipitation analyses of GPCP (Huffman et al. 1995, Adler et al. 2003) and of CMAP (Xie and Arkin 1997). It also supports regional climate monitoring. Figure 3 illustrates a seasonal precipitation anomaly monitoring application for the region of Europe.

The Full Data Reanalysis Product is of much higher accuracy compared to the GPCC near real-time products mentioned above. Therefore, its application is recommended for hydrometeorological model verification and water cycle studies, e.g. in context of UNESCO, GEWEX, and GTN-H (Global Terrestrial Network for Hydrology). This analysis product is based on all stations, near real-time and non real-time, in the GPCC data base supplying data for the individual month. The GPCC Full Data Reanalysis Product Version 4 covers the period from 1901 to 2007 (see example in Figure 4); this new extended product version using the new GPCC climatology as analysis background is available since 25 September 2008. The data coverage per month varies from less than 10,000 to more than 45,000 stations (Figure 7). The full data re-analyses will be updated at irregular time intervals subsequent to significant data base improvements.

The VASClimO 50-Year Data Set supplying gridded time-series of monthly precipitation for climate variability and trend studies is based on data being selected with respect to a (mostly) complete temporal data coverage and homogeneity of the time-series. The current version 1.1 is based on time-series of 9,343 stations covering the period 1951-2000 (Beck, Grieser and Rudolf, 2005). These long-term climatological analyses of homogenised area-averaged precipitation time-series are of special interest for GCOS and supported the Intergovernmental Panel on Climate Change (IPCC) Working Group I Fourth
Assessment Report (FAR), published in year 2007. Figure 5 shows an application example: Linear trends of annual total precipitation for 1951-2000. The VASClimO Data Set will be updated at irregular time intervals subsequent to significant data base improvements; in Spring 2009 a new Version 2 for period 1951-2005 will become available.

Related URL

Link: GET DATA

Description: Access the GPCC Monitoring Product.

Multimedia Sample

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Caption: GPCC Precipitation Normals for June, 0.25 degree resolution (DWD/WZN GPCC)

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: 90.0

S: -90.0

E: 180.0

W: -180.0

Data Set Citation

Dataset Originator/Creator: Global Precipitation Climatology Centre

Dataset Title: GPCC Monitoring Product

Dataset Release Date: continuous monthly updates

Dataset Publisher: Global Precipitation Climatology Centre

Version: Version 2

Data Presentation Form: Raster

Online Resource: ftp://ftp-anon.dwd.de/pub/data/gpcc/html/monitoring_download.html

Dataset Originator/Creator: Global Precipitation Climatology Centre

Dataset Title: GPCC Full Data Reanalysis Product

Dataset Release Date: 25 September 2008

Dataset Publisher: Global Precipitation Climatology Centre

Version: Version 4

Data Presentation Form: Raster

Online Resource: ftp://ftp-anon.dwd.de/pub/data/gpcc/html/fulldata_download.html

Dataset Originator/Creator: Global Precipitation Climatology Centre

Dataset Title: GPCC VASClimO 50-Year Data Set

Dataset Release Date: August 2005

Dataset Publisher: Global Precipitation Climatology Centre

Version: Version 1.1

Data Presentation Form: Raster

Online Resource: ftp://ftp-anon.dwd.de/pub/data/gpcc/html/download_gate.html

Dataset Originator/Creator: Global Precipitation Climatology Centre

Dataset Title: GPCC Precipitation Climatology

Dataset Publisher: Global Precipitation Climatology Centre

Version: Version 2008

Data Presentation Form: Raster

Online Resource: ftp://ftp-anon.dwd.de/pub/data/gpcc/html/gpcc_normals_download.html

Temporal Coverage

Start Date: 1901-01-01

Location Keywords

CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA

CONTINENT > AFRICA

Data Resolution

Latitude Resolution: 1.0 degree
Longitude Resolution: 1.0 degree
Horizontal Resolution Range: 250 km - < 500 km or approximately 2.5 degrees - < 5.0 degrees
Temporal Resolution: Monthly
Temporal Resolution Range: Monthly - < Annual

Science Keywords

ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT

ATMOSPHERE > PRECIPITATION > PRECIPITATION ANOMALIES

ATMOSPHERE > PRECIPITATION

ISO Topic Category

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Platform

GROUND STATIONS

Instrument

RAIN GAUGES

Project

GCOS > Global Climate Observing System

GEWEX > Global Energy and Water Cycle Experiment

GPCP > Global Precipitation Climatology Project

WCRP > World Climate Research Program

Quality All data reaching the GPCC are checked, processed and integrated in a
Relational Data Base Management System. Within the data bank, the records from
the different sources (SYNOP, CLIMAT, national data etc.) are stored in
...

Access Constraints The gridded analysis results of the GPCC are freely accessible.
However the station-related data delivered by the countries will not be
distributed by GPCC to third parties, in order to respect and protect the
ownership of the data originators.

Use Constraints Users of the data sets are kindly requested to give feed back and to refer to following GPCC publications:

U. Schneider, T. Fuchs, A. Meyer-Christoffer and B. Rudolf (2008): Global Precipitation Analysis Products of the GPCC. Global Precipitation Climatology Centre (GPCC), DWD, Internet Publikation, ...

Ancillary Keywords

EOSDIS

GLOBAL CLIMATOLOGY

Originating Center

GPCC

Data Center

Global Precipitation Climatology Centre

Data Center URL: http://gpcc.dwd.de/

Data Center Personnel
Name: TOBIAS FUCHS Phone: + 49 - 69 - 8062 2872 Fax: + 49 - 69 - 8062 3987 Email: gpcc at dwd.de Contact Address: Global Precipitation Climatology Centre GPCC c/o Deutscher Wetterdienst Postfach 10 04 65 City: Offenbach/Main Postal Code: D-63004 Country: GERMANY

Distribution

Distribution Media: online via website

Fees: free

Personnel

PETER FINGER

Role: TECHNICAL CONTACT

Phone: +49-69-8062-2767

Fax: +49-69-8062-3721

Email: peter.finger at dwd.de

Contact Address:

Deutscher Wetterdienst, GPCC

P.O.Box 100465

City: Offenbach/Main

Postal Code: D-63004

Country: Germany

TOBIAS FUCHS

Role: DIF AUTHOR

Role: INVESTIGATOR

Phone: + 49 - 69 - 8062 2872

Fax: + 49 - 69 - 8062 3987

Email: gpcc at dwd.de

Contact Address:

Global Precipitation Climatology Centre GPCC

c/o Deutscher Wetterdienst

Postfach 10 04 65

City: Offenbach/Main

Postal Code: D-63004

Country: GERMANY

Publications/References

Adler, R. F., G. J. Huffman, A. Chang, R. Ferraro, P.-P. Xie, J. Janowiak, B.
Rudolf, U. Schneider, S. Curtis, D. Bolvin, A. Gruber, J. Susskind, P. Arkin
and E. Nelkin, 2003: The Version-2 Global Precipitation Climatology Project
(GPCP) Monthly ...

Creation and Review Dates

Last DIF Revision Date: 2009-04-20

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