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On June 10, 2021 at 1:26:01 PM UTC, Gravatar Dirk Karger:
  • Updated description of resource CHELSA V1.2 (deprecated) in Climatologies at high resolution for the earth’s land surface areas from

    Climatologies are the mean monthly sum of precipitation in the years 1979–2013 for each month. As slight errors in the precipitation sums can accumulate over time, we applied an additional bias correction step using the GPCC Climatology Version 2015. We used the cells at which stations are present, calculated the bias between the annual accumulations and the GPCC climatology, and used a multilevel B-spline interpolation of the biases to a 0.25 grid to create the bias surface. This bias surface was then multiplied with the mean annual precipitation sums to create the final climatologies.
    CHELSA Version 1.2 based on ERA-Interim forcings and CMIP5