人民黄河2024，Vol.46Issue(5)：50-55,6.DOI:10.3969/j.issn.1000-1379.2024.05.008
气候变暖影响下黄河源区潜在蒸发量预测不确定性研究
Study on the Uncertainty of Predicting Potential Evaporation in the Source Regions of the Yellow River Under the Influence of Climate Warming
摘要
Abstract
Evaporation is an essential link between surface energy balance and water balance,and high-cold regions are sensitive to climate change.However,there is a large amount of uncertainty in the evaporation prediction process in the high-cold areas,which poses severe chal-lenges to scientifically analyzing the hydrological cycle changes and water resources management in river basins.Therefore,taking the source area of the Yellow River in the"high-cold region"as an example,this paper used five evaporation calculation models with different physical mechanisms(P-M,Har,J-H,Mak and P-T)to clarify the impact of model uncertainty on the prediction of potential evaporation in the ba-sin.Secondly,by coupling the"evaporation calculation model,GCMs and RCPs"model,the impact of various uncertainties on the uncer-tainty of potential evaporation prediction in different future periods(short-term,medium-term,and long-term)was explored.The contribution of their independent and interactive effects to the uncertainty of potential evaporation prediction was separated using the variance analysis method.The results show that the potential evaporation model based on solar radiation and temperature is significantly greater than the poten-tial evaporation model based on physical mechanism,and its annual potential evaporation difference is about 150 mm.The uncertainty of RCPs is the main factor leading to the uncertainty of evaporation prediction,accounting for about 65%,and the contribution of the interaction between multiple uncertainty sources to the uncertainty of evaporation prediction is particularly prominent in the"spring and winter"seasons.关键词
气候变暖/潜在蒸发量/预测不确定性/黄河源区Key words
climate warming/potential evaporation/prediction uncertainty/source regions of Yellow River分类
建筑与水利引用本文复制引用
殷晖,白福青,马金辉,田浩翔..气候变暖影响下黄河源区潜在蒸发量预测不确定性研究[J].人民黄河,2024,46(5):50-55,6.基金项目
浙江省水利厅重点课题(RB2115) （RB2115）
浙江水利水电学院课题(SWHZX202003) （SWHZX202003）
浙江省大学生创新创业项目(S202311481029,S202311481030) （S202311481029,S202311481030）
