Climate change scenarios for precipitation and potential evapotranspiration over central Belgium |
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| Authors: | P Baguis E Roulin P Willems V Ntegeka |
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| Institution: | 1. Department of Meteorological Research and Development, Royal Meteorological Institute of Belgium, Avenue Circulaire 3, B-1180, Brussels, Belgium
2. Department of Civil Engineering, Katholieke Universiteit Leuven, Faculty of Engineering, Kasteelpark Arenberg 40, B-3001, Leuven, Belgium
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| Abstract: | In this article, we examine climate model estimations for the future climate over central Belgium. Our analysis is focused mainly on two variables: potential evapotranspiration (PET) and precipitation. PET is calculated using the Penman equation with parameters appropriately calibrated for Belgium, based on RCM data from the European project PRUDENCE database. Next, we proceed into estimating the model capacity to reproduce the reference climate for PET and precipitation. The same analysis for precipitation is also performed based on GCM data from the IPCC AR4 database. Then, the climate change signal is evaluated over central Belgium using RCM and GCM simulations based on several SRES scenarios. The RCM simulations show a clear shift in the precipitation pattern with an increase during winter and a decrease during summer. However, the inclusion of another set of SRES scenarios from the GCM simulations leads to a less clear climate change signal. |
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