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Dataset Overview | National Centers for Environmental Information (NCEI)

Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily)

Precipitation - GPCP Daily

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The GPCP Daily analysis is a companion to the GPCP Monthly analysis, and provides globally complete precipitation estimates at a spatial resolution of one degree latitude-longitude and daily time scale from October 1996 to the present. Although derived using both some of the same, but also different, data sets and methods than used in the GPCP Monthly analysis, the GPCP Daily "adds up" to the GPCP Monthly. The GPCP Daily V1.3 analysis is currently computed by the University of Maryland and submitted to NCEI. The routine update of the product takes place two months after the end of the month, once all input data sets become available. The data set is part of World Climate Research Program (WCRP) and GEWEX activities, being part of the array of data sets describing the water and energy cycles of the planet under the auspices of the GEWEX Data and Assessment Panel (GDAP). Details of input data sets and methods can be found in: Huffman, G.J., R.F. Adler, M. Morrissey, D.T. Bolvin, S. Curtis, R. Joyce, B McGavock, J. Susskind, 2001: Global Precipitation at One-Degree Daily Resolution from Multi-Satellite Observations. J. Hydrometeor., 2(1), 36-50.

Dataset Citation

Cite as: Adler, Robert; Wang, Jian-Jian; Sapiano, Mathew; Huffman, George; Bolvin, David; Nelkin, Eric; and NOAA CDR Program (2017). Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) [Indicate subset used.]. NOAA National Centers for Environmental Information. doi:10.7289/V5RX998Z [access date]
Please refer to Credit tab for full citation information.

Dataset Identifiers

doi:10.7289/V5RX998Z
NCEI DSI 3631_02
gov.noaa.ncdc:C00999

ISO 19115-2 Metadata

gov.noaa.ncdc:C00999

Full Text · XML

Download Data	NCEI Data Download (download) Data access for the CDR product AWS S3 Explorer (Region: us-east-1) (download) Browse view to explore the S3 bucket.
Distribution Formats	netCDF (Version: 4) File Specification: The NetCDF data files comply with the Climate and Forecast (CF) Metadata Conventions and the NetCDF Attribute Convention for Dataset Discovery (ACDD).
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information ncei.info@noaa.gov
Dataset Point of Contact	Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov
Dataset Point of Contact	NOAA Climate Data Record Program Office DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 (828) 271-4800 gpcp_contacts@noaa.gov

Time Period	1996-10-01 to Present (time interval: 1-day)
Spatial Bounding Box Coordinates	West: -180.0 East: 180.0 South: -90.0 North: 90.0
Spatial Coverage Map

General Documentation	NCEI Dataset Landing Page Landing page for the dataset. Registry of Open Data on AWS Information on AWS data access. Azure Landing Page (Region: us-east) Information on Microsoft Azure data access.
Processing Documents	Source Code Package for GPCP CDR CDR Source Code (download) This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment. GPCP Daily Analysis (V1.3) Data Flow Diagram CDR Data Flow Diagram Flowcharts for the CDR product. Climate Algorithm Theoretical Basis Document for GPCP CDR Climate Algorithm Theoretical Basis Document for Global Precipitation Climatology Project (GPCP) Daily Analysis The ATBD for the CDR Product
Associated Resources	Data Stewardship Maturity Report for Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) DSMR Publication at the NOAA Institutional Repository Report documenting the Scientific Data Stewardship Maturity for this dataset. Data Stewardship Maturity Report for Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) DSMR Publication at the NOAA Institutional Repository Report documenting the Scientific Data Stewardship Maturity for this dataset. Huffman et al. (2001) J. Hydrometeor., 2(1), 36-50. Huffman et al. (2001) J. Hydrometeor., 2(1), 36-50. Science paper about the dataset. Global Precipitation Climatology Project (GPCP) - Daily, Version 1.2 (Version Superseded) NCEI Landing page for Version 1.2 of the Dataset Superseded dataset landing page. This version of the data should not be used except in rare cases (e.g., when reproducing studies that used this earlier version). Global Precipitation Climatology Project (GPCP) Global Precipitation Climatology Project (GPCP) Informational website about the GPCP collection, maintained by UMD. Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 2.3 (Monthly) NCEI landing page for Precipitation - GPCP Monthly Related dataset landing page with general information and access links for that dataset.

Publication Dates	publication: 2017-09-15 creation: 2017-05-01
Edition	Version 1.3
Data Presentation Form	Digital image
Dataset Progress Status	Ongoing - data is continually being updated
Data Update Frequency	Monthly
Supplemental Information	The GPCP Daily Version 1.3 Combined Precipitation Data Set, covering the period October 1996 through the present (with 2+ months delay). The primary product in the dataset is a combined observation-only dataset in the form of a gridded analysis based on satellite estimates of precipitation and the GPCP Monthly analysis. The data set archive consists of monthly unformatted REAL*4 binary files with ASCII headers, each of which holds 28-31 daily fields. Each file occupies almost 5 MB. The grid on which each field of values is presented is a 1 deg x 1 deg latitude--longitude (Cylindrical Equal Distance) global array of points. It is size 360x180, with X (longitude) incrementing most rapidly West to East from the Prime Meridian, and then Y (latitude) incrementing North to South.
Purpose	This dataset provides the basis for analysis of precipitation means and variations from the global scale to regional scales with a daily time resolution and uses both satellite and in situ precipitation observations.
Use Limitations	Although large-scale time and space biases are limited by scaling the analysis to the GPCP Monthly analysis, the accuracy of individual daily estimates at fine resolution is limited. See the Algorithm Theoretical Basis Document for a description of the use limitations for this dataset.

Dataset Citation	Cite as: Adler, Robert; Wang, Jian-Jian; Sapiano, Mathew; Huffman, George; Bolvin, David; Nelkin, Eric; and NOAA CDR Program (2017). Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) [Indicate subset used.]. NOAA National Centers for Environmental Information. doi:10.7289/V5RX998Z [access date] Publications using this dataset should also cite the following journal article: Huffman, G.J., R.F. Adler, M. Morrissey, D.T. Bolvin, S. Curtis, R. Joyce, B McGavock, J. Susskind, 2001: Global Precipitation at One-Degree Daily Resolution from Multi-Satellite Observations. J. Hydrometeor., 2(1), 36-50.
Cited Authors	Adler, Robert University of Maryland Wang, Jian-Jian University of Maryland Sapiano, Mathew University of Maryland Huffman, George NASA Bolvin, David NASA Nelkin, Eric NASA NOAA CDR Program DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Principal Investigators	Adler, Robert University of Maryland
Collaborators	Wang, Jian-Jian University of Maryland Sapiano, Mathew University of Maryland Huffman, George NASA Bolvin, David NASA Nelkin, Eric NASA NOAA CDR Program DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Publishers	NOAA National Centers for Environmental Information

Theme keywords	Global Change Master Directory (GCMD) Science Keywords Earth Science > Atmosphere > Precipitation Global Climate Observing System (GCOS) Essential Climate Variables (ECVs) Atmospheric - Surface - Precipitation
Data Center keywords	Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Platform keywords	Global Change Master Directory (GCMD) Platform Keywords GOES (Geostationary Operational Environmental Satellite) NOAA POES (Polar Orbiting Environmental Satellites) DMSP (Defense Meteorological Satellite Program) AQUA > Earth Observing System, AQUA METEOSAT MTSAT > Multi-functional Transport Satellite GMS (Japan Geostationary Meteorological Satellite) Meteorological Stations
Instrument keywords	Global Change Master Directory (GCMD) Instrument Keywords SSM/I > Special Sensor Microwave/Imager SSMIS > Special Sensor Microwave Imager/Sounder TOVS > TIROS Operational Vertical Sounder AIRS > Atmospheric Infrared Sounder Rain Gauges
Place keywords	Global Change Master Directory (GCMD) Location Keywords Geographic Region > Global
Project keywords	Global Change Master Directory (GCMD) Project Keywords GPCP > Global Precipitation Climatology Project NOAA Climate Data Record (CDR) Program NOAA OneStop Project
Data Resolution keywords	Global Change Master Directory (GCMD) Vertical Data Resolution Keywords > 1 km Global Change Master Directory (GCMD) Temporal Data Resolution Keywords Hourly - < Daily Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords 100 km - < 250 km or approximately 1 degree - < 2.5 degrees
Stratum keywords	Global Change Master Directory (GCMD) Location Keywords Vertical Location > Land Surface Vertical Location > Sea Surface

Use Constraints

Cite as: Adler, Robert; Wang, Jian-Jian; Sapiano, Mathew; Huffman, George; Bolvin, David; Nelkin, Eric; and NOAA CDR Program (2017). Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily) [Indicate subset used.]. NOAA National Centers for Environmental Information. doi:10.7289/V5RX998Z [access date]

Publications using this dataset should also cite the following journal article: Huffman, G.J., R.F. Adler, M. Morrissey, D.T. Bolvin, S. Curtis, R. Joyce, B McGavock, J. Susskind, 2001: Global Precipitation at One-Degree Daily Resolution from Multi-Satellite Observations. J. Hydrometeor., 2(1), 36-50.

See the Use Agreement for this CDR available on the CDR page.

Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.

Access Constraints

Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Fees

In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Lineage Statement	The data were produced through a joint effort between the University of Maryland and NASA and are archived at the NOAA National Centers for Environmental Information (NCEI). See associated documentation for more information about the creation of the dataset.
Processor	UMD/ESSIC > Earth System Science Interdisciplinary Center, University of Maryland
Processing Steps	The GPCP Daily code is made up of around 150 individual code files, which are distributed among 6 modules of code plus another 4 codes to create file listings and perform pre- and post processing diagnostics. The code is run by a single driver code (shell script)in the main directory that mirrors the monthly code (GPCPcdr_ECPd_Process1month.sh) that performs a check that all data is present and then calls each of the constituent parts of the processing code.
Processing Environment	Generation of the GPCP Monthly analysis is accomplished using moderate-sized workstations at the University of Maryland
Processing Documents	Source Code Package for GPCP CDR CDR Source Code (download) This source code is for reference only. The source code is provided to maintain transparency of the algorithm and processes used in creating the Climate Data Record (CDR). The source code is not intended to be portable to any computer system(s) beyond that of the original CDR producer's environment. GPCP Daily Analysis (V1.3) Data Flow Diagram CDR Data Flow Diagram Flowcharts for the CDR product. Climate Algorithm Theoretical Basis Document for GPCP CDR Climate Algorithm Theoretical Basis Document for Global Precipitation Climatology Project (GPCP) Daily Analysis The ATBD for the CDR Product
Source Datasets	GPCC Full Data Reanalysis Version 7 Landing Page GPCC Full Data Reanalysis Version 7 Landing Page Source dataset used in the product of GPCP v1.3 Daily Description of Source: GPCC Full Data Reanalysis Temporal extent used: 1996-10-01 to Present Spatial extent used: N:90 S:-90 E:180 W:-180 GPCC Monitoring Product: Near Real-Time Monthly Land-Surface Precipitation from Rain-Gauges based on SYNOP and CLIMAT data GPCC Monitoring Product: Near Real-Time Monthly Land-Surface Precipitation from Rain-Gauges based on SYNOP and CLIMAT data Source dataset used in the product of GPCP v1.3 Daily Description of Source: GPCC Monitoring Product Temporal extent used: 1996-10-01 to Present Spatial extent used: N:90 S:-90 E:180 W:-180 Globally Merged IR data Globally Merged IR data Source dataset used in the product of GPCP v1.3 Daily Description of Source: Globally Merged IR data Temporal extent used: 1996-10-01 to Present Spatial extent used: N:60 S:-60 E:180 W:-180 SSMI(S) Brightness Temperature - RSS SSMI(S) Brightness Temperature - RSS Source dataset used in the product of GPCP v1.3 Daily Description of Source: NCEI RSS SSMI/SSMIS Temporal extent used: 1996-10-01 to Present Spatial extent used: N:90 S:-90 E:180 W:-180 AIRS Version 6 Data AIRS Version 6 Data Source dataset used in the product of GPCP v1.3 Daily Description of Source: AIRS Temporal extent used: 2003 to Present Spatial extent used: N:90 S:-90 E:180 W:-180 Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) Global Gridded Products Special Sensor Microwave/Imager (SSM/I) and Special Sensor Microwave Imager Sounder (SSMIS) Global Gridded Products SSM/I and SSMIS Gridded Products Data Access Description of Source: Ferraro SSM/I and SSMIS Gridded Products Temporal extent used: 1996 to Present Spatial extent used: N:90 S:-90 E:180 W:-180

Lineage information for: repository
Processing Steps	2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.

Lineage information for: repository

Processing Steps

2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.

Last Modified: 2023-08-10
For questions about the information on this page, please email: ncei.info@noaa.gov

Global Precipitation Climatology Project (GPCP) Climate Data Record (CDR), Version 1.3 (Daily)

Precipitation - GPCP Daily

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