GPCP Version 3.2 Monthly Satellite-Gauge (SG) Combined Precipitation Data Set
d728008
This dataset contains Version 3.2 of The Global Precipitation Climatology Project (GPCP) Satellite-Gauge (SG) Combined Precipitation Data Set at monthly resolution (GPCPMON). The variables included are combined SG precipitation, combined SG precipitation random error, multi-satellite precipitation, probability of liquid phase, wind-loss adjusted gauge precipitation, satellite source index, gauge relative weighing, and quality index. As the follow-on to the GPCP Version 2.X products, GPCP Version 3 (GPCP V3.2) seeks to continue the long, homogeneous precipitation record using modern merging techniques and input data sets. The GPCP V3 suite currently consists of the 0.5-degree Monthly and Daily products. A follow-on 0.1-degree 3-hourly product is expected. All GPCP V3 products are constructed to be internally consistent. The Monthly product spans 1983 to the present, with roughly quarterly updates. Inputs consist of the Goddard Profiling Algorithm (GPROF) applied to the 6 AM/PM (local solar time) Special Sensor Microwave Imager / Special Sensor Microwave Imager-Sounder (SSMI/SSMIS) passive microwave (PMW) orbit files that are used to calibrate the Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks (PERSIANN-CDR) infrared (IR) based precipitation in the span 60 degrees N-S, which are in turn calibrated to the monthly 2.5-degree Microwave Emission brightness Temperature Histograms (METH) product computed from the same SSMI/SSMIS data. The METH-GPROF-adjusted PERSIANN-CDR IR estimates are then climatologically adjusted to the blended Tropical Combined Climatology (TCC) at low latitudes and Merged CloudSat, Tropical Rainfall Measuring Mission (TRMM), and GPM (MCTG) climatology at higher latitudes. These climatologies are computed from shorter-term, but higher-quality precipitation datasets that are considered to provide the best global climatology of precipitation. Outside of 58 degrees N-S, estimates computed from Television-Infrared Operational Satellite (TIROS) Operational Vertical Sounder / Advanced Infrared Sounder (TOVS/AIRS) data, adjusted climatologically to the MCTG, are used. The PERSIANN-CDR / TOVS/AIRS estimates are then merged in the region between 35 degrees N-S and 58 degrees N-S, and this multi-satellite product is then merged with Global Precipitation Climatology Centre (GPCC) gauge analyses over land to obtain the complete Monthly product. In addition to the merged precipitation field, random error, Quality Index, and probability of liquid phase estimates are provided. GPCP Version 3 was initiated under a NASA Making Earth Science Data Records for Use in Research Environments (MEaSUREs) program (PI: George Huffman, NASA GSFC) and is now being upgraded under a current NASA MEaSUREs project (PI: Ali Behrangi, University of Arizona). The GPCP is computed as a contribution to the World Climate Research Program (WCRP) and Global Water and Energy Exchange (GEWEX) activity and is part of the array of data sets describing the water and energy cycles of the planet. Prior versions of the GPCP analysis have been produced by a consortium of individual scientists at various government and university institutions and most recently as part of the NOAA Climate Data Record (CDR) Program. The current GPCP Monthly SG product described here blends precipitation estimates from polar-orbit PMW imagers (SSMI, SSMIS), polar orbit IR sounders (TOVS, AIRS), and geostationary IR imagers (GOES, MeteoSat, GMS, MTSat, and Himawari); and then combines in Global Precipitation Climatology Centre (GPCC) precipitation gauge analyses, the Tropical Combined Climatology (TCC); and the Merged CloudSat, TRMM, and GPM (MCTG) climatology products. For more information, see the GPCPMON official site at NASA GES DISC [https://disc.gsfc.nasa.gov/datasets/GPCPMON_3.2/summary].
dataset
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climatologyMeteorologyAtmosphere
dataset
revision
2014-10-16
Aqua > Earth Observing System, Aqua
DMSP > Defense Meteorological Satellite Program
GMS > Japan Geostationary Meteorological Satellite
GOES > NOAA Geostationary Operational Environmental Satellites
Himawari-8
METEOSAT > Meteosat Operational Programme
MTSAT > Multi-functional Transport Satellite
NOAA POES > NOAA Polar Orbiting Environmental Satellites
WEATHER STATIONS > WEATHER STATIONS
revision
2024-08-09
AHI > Advanced Himawari Imager
AIRS > Atmospheric Infrared Sounder
GOES-15 Imager > Geostationary Operational Environmental Satellite 15-Imager
GOES-16 Imager > Geostationary Operational Environmental Satellite 16-Imager
MTSAT 1R Imager
MTSAT 2 Imager
RAIN GAUGES > RAIN GAUGES
SSM/I > Special Sensor Microwave/Imager
SSMIS > Special Sensor Microwave Imager/Sounder
TOVS > TIROS Operational Vertical Sounder
VISSR-GMS > Visible and Infrared Spin Scan Radiometer (GMS Series)
VISSR-METEOSAT > Visible and Infrared Spin Scan Radiometer (METEOSAT Series)
revision
2024-08-09
MEaSUREs > Making Earth System Data Records for Use in Research Environments
revision
2024-08-09
EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE
revision
2024-08-09
-180
180
90
-90
1983-01-01T00:00:00Z
2024-01-01T00:00:00Z
publication
2024-09-04
quarterly
Creative Commons Attribution 4.0 International License
None
UCAR/NCAR - Research Data Archive
National Center for Atmospheric Research
CISL/DECS
P.O. Box 3000
Boulder
80307
U.S.A.
(303)-497-1217
303-497-1291
pointOfContact
NCAR Research Data Archive
National Center for Atmospheric Research
CISL/DECS
P.O. Box 3000
Boulder
80307
U.S.A.
303-497-1291
name: NCAR Research Data Archive
description: The Research Data Archive (RDA), managed by the Data Engineering and Curation Section (DECS) of the Computational and Information Systems Laboratory (CISL) at NCAR, contains a large and diverse collection of meteorological and oceanographic observations, operational and reanalysis model outputs, and remote sensing datasets to support atmospheric and geosciences research, along with ancillary datasets, such as topography/bathymetry, vegetation, and land use.
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2024-09-06T21:05:01Z