Climate Change Impacts on Water Resources in Yemen

作     者：Abdulla Noaman Georg Petersen Jens Kiesel Steven Wade 

作者机构：Faculty of Engineering Sana 'a University Sana 'a 2054 Yemen HYDROC Consult Langballig 24977 Germany HR Wallingford Ltd. Wallingford OX108BA UK 

出 版 物：《Journal of Earth Science and Engineering》 (地球科学与工程（英文版）)

年 卷 期：2013年第3卷第9期

页      面：629-638页

学科分类：07[理学] 08[工学] 081501[工学-水文学及水资源] 070602[理学-大气物理学与大气环境] 0815[工学-水利工程] 0706[理学-大气科学] 

主　　题：Climate change water resources groundwater spate flow arid wadi hydrology 

摘      要：Climate change impacts on water resources are expected to be significant in Yemen. Efforts have been made to understand the expected changes and develop mitigation possibilities for the expected scenarios for a future sustainable use of resources and mitigation of expected impacts. The paper describes the development of a detailed baseline database and the assessment of climate change and variability impacts on water resources over the 2030, 2050 and 2080 time horizon on a Yemen-wide scale. Based on downscaled Global Climate Model data, a range of scenarios were established, representing potential Mean, Warm ＆ Wet and Hot ＆ Dry conditions as derived by evaluating worst case scenarios from the ensemble of the global models for the specified years. The results of the model include an estimated runoff coefficient, monthly rainfall, runoff, infiltration and evaporation representing the water balance in the different catchments. Analysis of the different evaluated scenarios shows that in the Mid, Warm and Wet scenario the hydrological components are generally higher than in the baseline scenario. For the Hot ＆ Dry scenario, runoff, infiltration and evapotranspiration are decreasing due to the decreasing precipitation and increase in temperature. The relative changes in runoff are strongest.