The precipitation estimates are derived by different methods in the tropics and the extratropics, and the documentation available at the above www page. A description of the global landsurface precipitation data products of the global precipitation climatology centre with sample applications. Global precipitation climatology project gpcp university of maryland college park. Rainfall data records of about 300 stations are acquired from national meteorological services. They can be used for the most recent months for which gpcp is unavailable. Users are stongly discouraged from using the gpcp interim for months when the full gpcp is available.
The general approach was to combine the precipitation information available from each of several sources into a final merged product, taking advantage of the strengths of each data type. In addition to the combination of these data sets, estimates of the uncertainties in the rainfall analysis are provided as a part of the gpcp products. The general approach is to combine the precipitation information available from each source into a final merged. Global precipitation climatology project gpcp pentad. The data set source should be acknowledged when the data are used. The global precipitation climatology project gpcp data set that was established by the world climate research programme.
Ahps precipitation analysis national weather service. The current release of the gpcp pentad precipitation analysis is an. Global precipitation climatology project gpcp monthly. This data set was obtained from the nasa goddard space flight center.
Rainfall is the primary source of fresh water for humans, plants, and animals. The gauge data are assembled and analyzed by the global precipitation climatology centre gpcc of the deutscher wetterdienst and by the. The global precipitation climatology project gpcp was established by the world climate research programme to quantify the distribution of precipitation around the globe over many years. Time series of monthly areal averaged arc2 rainfall mmday compared to arc1, gpcp and cmap from 19832009. The data from the various satellites are then merged into global gridded form, are qualitycontrolled, and estimates of precipitation from the goes precipitation index gpi are produced. In fact, there is no significant change in mean global rainfall since 1979 according to the global precipitation climatology project gpcp product adler et. Experimental gpcp pentad 5day precipitation analysis. Essic and cooperative institute for climate and satellites cics gpcp monthly analysis gpcp interimlatest month interim gpcp estimates are provisional estimates of gpcp available 10 days after the end of the month. Comparison of satellite rainfall data with observations. The global precipitation climatology project gpcp was established by the.
Hoapsgpcc global daily precipitation data set is a combined analysis of. These maps depict monthly total rainfall around the world. Gpcp monthly data the gpcp monthly dataset is a widelyused global monthly gridded precipitation dataset. In this section the gpcp version2 dataset will be compared with two independent gauge datasetsone over ocean and one over land. Jisao data global precipitation climatology project gpcp precipitation merged precipitation for 1979 2010, version 2. Overview and access to gpcp, trmm, and gpm precipitation. Interim cdr icdr available 10 days after end of month for realtime climate analysis v2.
Newly released trmm version 7 products, gpcp version 2. These missions study rainfall and other types precipitation around the globe. The first is the widely used global precipitation climatology project gpcp version 2. The official website for nasa precipitation measurement missions. The global precipitation measurement gpm mission provides a new generation of satellite observations of rain and snow worldwide every three hours for scientific research and societal benefits. Gpcp monthly analysis gpcpinterimlatest month interim gpcp estimates are provisional estimates of gpcp available 10 days after the end of the month. Gpcp daily data the gpcp 1 degree daily precipitation dataset provides daily rainfall accumulation globally on a onedegree grid in latitude and longitude starting in october 1996 and continuing through the present with some delay for processing. Global precipitation climatology project gpcp version 2.
Trmm data downloads precipitation measurement missions. Freely accessible sources of meteorological data rainfall. Aggregation periods of 1, 3, 6, 9, 12, 24 and 48 months are calculated and available as. Data set, a global, monthly precipitation dataset covering the period july 1987. Intercomparison of era5, erainterim and gpcp rainfall. Apdrc datadoc gpcp merged daily precipitation version 1. These data are then forwarded to the gpcp merged data center and the gpi estimates are made available publically on. You can also use gpcp or cmap precipitation data which are freely available. The gpcp products version 1 have been the subject of comparison with surface rainfall data in previous studies huffman et al. The correspondence between five precipitation products, including cmorph, gpcp2, trmm 3b43, gpcc, and itpcas, and groundbased measurements of precipitation were evaluated on annual, seasonal, and monthly scales during 20002014 in the qinlingdaba mountains over china, which is a significant area with vital value of climate and hydrology. Precipitation gpcp daily national climatic data center. Global precipitation climatology project gpcp nasas mesoscale atmospheric processes laboratory produces the global precipitation climatology project gpcp monthly precipitation dataset from 1979present by combining observations and satellite precipitation data into 2.
The version2 global precipitation climatology project. Global precipitation climatology project gpcp climate data record cdr, version 2. Multiple time spans, ranging from 1 to 72 hours, are available. Evaluation of precipitation from cmorph, gpcp2, trmm 3b43. The gpcp combined precipitation data were provided by the nasagoddard space flight centers laboratory for atmospheres, which develops and computes the dataset as a contribution to the gewex global precipitation climatology project. A description of the global landsurface precipitation data products of the global precipitation climatology centre with sample applications including centennial trend analysis from 1901present. The global precipitation climatology project gpcp daily precipitation is produced at the nasa goddard space flight center.
Sg, pentad, and onedegree daily 1dd combined precipitation data sets. Pdf the global precipitation climatology project gpcp. Variable, statistic, level, download file, create plotsubset. The following was contributed by angeline pendergrass ncar, july, 2014. This dataset provides scientific researchers a high quality climate data record cdr of global precipitation, from the global precipitation climatology project gpcp.
The gpcp data still tends to underestimate rainfall at gauge 6210, but less so at gauge 5350. Can i get a free source of daily rainfall data for the entire globe. Gaugebased gridded monthly precipitation data sets for the global land surface format. The data are monthly analyses defined on a global 2. It is therefore clear that there is far less spatial variation in the satellite rainfall data than the gauge data, which is probably related to the resolution of the satellite data calibration process. Download all files relating to the monthly gpcp products. In support of this work an international group of precipitation experts developed and produces the gpcp version 2 monthly satellitegauge sg, pentad, and. Gpccs monitoring product is used as landsurface reference for the gpcp. However, we were able to use only a tenth of these records in one of the previous studies see, e. These data include quality controlled daily, monthly, seasonal, and yearly measurements of temperature, precipitation, wind, and degree days as well as radar data and 30year climate normals. How to download historical climate data from noaa youtube. Jisao data global precipitation climatology project gpcp daily precipitation version 1dd v1.
Since satellites estimate rainfall through a transform of received radiance, the. In the near future we will provide also this source of rainfall data. Gpcp data products 15 product name and version spatial resolution and coverage temporal resolution and coverage data format gpcp version 2. Global precipitation climatology project gpcp daily precipitation. The gpcps present goal is to provide monthly mean precipitation data on a global 2. The global precipitation climatology project gpcp comprises a total of 27 products. This data combines gage reports and radarderived precipitation estimates. Global precipitation climatology project gpcp gewex. Highresolution monthly rainfall database for ethiopia. Climate data online cdo the national climatic data.
The dataset begins in 1979 and continues through the present, with some delay for processing. Products available gpcc anomaly analysis product best for longterm change analysis. The planets wettest areas are getting a little wetter, according to nasa scientists analysis of more than 25 years of ground and spacebased rainfall. 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.
The global precipitation climatology project gpcp was established by the world climate research program wcrp to address the problem of quantifying the distribution of precipitation around the globe over many years. Tropical rainfall measuring mission trmm satellite provide precipitation data. The careful combination of satellitebased rainfall estimates provides the most complete. Climate data online cdo provides free access to ncdcs archive of global historical weather and climate data in addition to station history information. Rain also moves heat between the atmosphere, oceans, and land. Global precipitation climatology project gpcp clearinghouse. Climate prediction center gpcp geostationary satellite. Precipitation data are taken from gpccs full data monthly product and temperature data from noaas climate prediction center cpc monthly global surface air temperature data set. Download gpcpinterim data the gpcpinterim is not intended for permanentlongterm use, only as a interim estimate until the release of the full gpcp. Kempler4 1george mason university, 2adnet systems, inc. The gpcp monthly product provides a consistent analysis of global precipitation from an integration of various satellite data sets over land and ocean and a gauge analysis over land.
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