Bias-corrected data set of daily precipitation for a study region in Burkina Faso and parts of Ghana, Togo and Benin.

The precipitation simulations of the CORDEX Africa ensemble have been bias-corrected with a geostatistically based Quantile-Mapping with dry day correction.

The distribution parameters probability of rainfall and mean precipitation on wet days were Kriged to the ungauged locations from the observed parameters of point measurements (172 stations in total) for nine season (dry season NDJF and remaining eight months individually).

Observed precipitation was modelled with the exponential distribution, RCM precipitation was modeled with a Kernel Density Estimation of the CDF.

Future scenarios were bias-corrected with the Double-Quantile-Mapping approach presented in http://onlinelibrary.wiley.com/doi/10.1029/2010WR009689
/abstract

All models were stretched to the Gregorian calendar (original CORDEX-RCMs are available as 360d/a, 365d/a and 365.25d/a) to facilitate running impact models.

• Historical period: 1950-2005 (exception: SMHI-models start 1951) - calibration period

• Future period: 2006-2100 (exception: models driven by HadGEM2 end 2099) - validation period

• Temporal resolution: daily

• Spatial resolution: 0.44°

This is a test version - please inform me about any potential problems you may have with the data via manuel.lorenz@geo.uni-augsburg.de