The Global Precipitation Climatology Centre (GPCC) is operated by the German Weather Service (DWD) under the auspices of the World Meteorologic Organization. It has the task of collecting global in-situ precipitation data to produce quantitative global precipitation and water balance analyses.
The "GPCC Monitoring Product" comprises monthly precipitation over land areas, calculated from data of routine measurements at global stations (6500 to 8000 SYNOP and CLIMAT reports per month). This gridded data set is a routine product, which is updated on a monthly basis. On the basis of GPCC's new Global Precipitation Climatology (V. 2011) focusing on the period 1951-2000 (based on climatological normals for ca. 67,200 stations) the Monitoring Product (Version 4) is calculated as anomaly analysis superimposed on the background climatology. The GPCC Monitoring Product is suitable for all applications, that need gridded, monthly near-realtime data of high quality, for example, comparisons with current satellite data.
In addition, we also have added the "GPCC Full Data Re-Analysis" (1901 - 2010) to our collection, which has a higher quality than the data monitoring product, but has not the near realtime availability.