The GPCC increased the accuracy of the station coordinates for the interpolation in September 2017. A bug in our software prohibited the utilization of this higher
accuracy and caused analyses based on only a few stations. In January 2018, this bug was fixed and the analysis for December 2017 was ok. The analyses for August
till November 2017 were reprocessed, these files have "_update" in there file name. Please use the updated files for further analyses.