GPCC Interpolation Test Dataset at 1.0°

Peter Finger, Markus Ziese, Anja Meyer-Christoffer, Udo Schneider & Andreas Becker
The GPCC Interpolation Test Dataset (ITD) was created to provide "open" precipitation data for users to compare their interpolation results with the GPCC interpolation procedure. Depart from the operational interpolation of anomalies, monthly precipitation totals were interpolated, because the necessary long term means to compute the anomalies could not be provided. As described in Becker et al. (2013; DOI:10.5194/essd-5-71-2013), the interpolation was done at a finer subgrid and subsequent area and land portion weighting. Only...