Climatological data (R, Tavg, Tmin, and Tmax) interpolated for Poland from 1951 to 2023.

This dataset contains high-resolution, gridded climatological layers for Poland spanning 72 years, from 1951 to 2023. The dataset was developed as part of a research initiative to assess long-term water availability and drought conditions in the context of changing climate regimes. The input dataset includes monthly temperature and precipitation records from over 2,000 meteorological stations, provided by the Institute of Meteorology and Water Management – National Research Institute (URL: https://danepubliczne.imgw.pl/data/dane_pomiarowo_obserwacyjne/), as well as elevation data from the Shuttle Radar Topography Mission (SRTM, DOI: 10.5069/G9445JDF). The dataset is created by spatial interpolation using a hybrid regression-spline model. The resulting dataset contains monthly raster layers of the R, Tavg, Tmin, Tmax with a spatial resolution of 100 m x 100 m, an EPSG code of 3035, and an integer format of 16 bits with a scale multiplier of 0.01 for temperature and 0.1 for precipitation. The files are packed into ZIP archives, each containing ten years of the data. All files are freely available.