KliWES 3.0

Since 2008, the LfULG project KliWES has been investigating the future development of key water balance variables in Saxony under changing climatic boundary conditions in order to create a reliable basis for decision-making. An ensemble of three models (ArcEGMO, Raven, BROOK90) and various climate projections spans the possible event space of the future water balance in Saxony. KliWES 3.0 further developed the predecessor project KliWES 2.0 through the following methodological improvements: integration of Saxon mining regions and the Weiße Elster catchment area, integration of bias-corrected projections of the Central German core ensemble, updating of meteorological/hydrological series, testing and evaluation of an ensemble approach (models and parameters) as well as automation for quality assurance and reproducible processing.

© Corina Hauffe

The results are: For 1961-2020, real evaporation has been increasing since around 1990. A further slight increase is expected by 2050, partly with decreasing groundwater recharge. Quality levels were assigned for the quality of the model results (ArcEGMO) in order to classify the regional reliability. Area-wide results (ArcEGMO) are freely accessible in the GWN Viewer.

https://gwn-sachsen.de/