This dataset provides high-resolution (0.22° / ~25 km) daily climate projections for the Central Asia domain (CORDEX CAS-22). The data is derived from COSMO-CLM (CCLM6-0) regional climate simulations dynamically downscaling the MPI-ESM1-2-HR Earth System Model. It includes a historical period (1984–2014) and future projections (2019–2099) under SSP1-2.6, SSP3-7.0, and SSP5-8.5 scenarios. The product was generated by performing temporal aggregation (daily mean, max, min, and sum) on raw sub-daily output using CDO. This work is part of the "Green Vision Central Asia" initiative supported by the German Federal Foreign Office.
State-of-the-art hydrological impact studies are based on weather data from regional climate model ensembles and require a certain degree of accuracy.
Despite regional downscaling to finer resolution, RCM simulations often show considerable biases when compared to observed data and bias-correction is an attempt to improve the quality and reliability.
However, correction methods are based on the stationarity assumption which presumes that future physical processes in the atmosphere are comparable to the period used to correct the simulations.
This dataset provides bias-corrected daily precipitation, min/mean/max air temperature of ten CORDEX RCM runs covering the country of Ethiopia for historical (1970-1999) and over the 21st century for RCP 4.5 and RCP 8.5.