基于VIC模型的黄河上游未来径流变化分析

被引:15
作者
魏洁
畅建霞
陈磊
机构
[1] 西安理工大学西北旱区生态水利工程国家重点实验室培育基地
关键词
水文预报; 气候变化; 径流; Delta方法; VIC模型; 黄河上游;
D O I
暂无
中图分类号
P333.1 [水量平衡];
学科分类号
081501 ;
摘要
为研究变化环境下黄河上游流域降水、气温与径流的变化特征,采用Delta方法对大气环流模式(GCMs)中BCC-CSM1.1模式数据进行降尺度处理,建立未来时期的气候变化情景,应用VIC分布式水文模型,对流域未来径流过程进行预估。结果表明,与基准期(1971—2010年)相比,三种情景下黄河上游未来(2011—2050年)多年平均降水增加4.31%5.74%;多年平均最高气温和最低气温升高1.04~1.61℃,其中冬季升温最为明显;多年平均径流量分别增加2.65%、2.66%和8.07%,且增加幅度随时间推移逐渐减小,长期呈下降趋势;就年内分配来看,径流在冬季有所增加,夏季略有减少。
引用
收藏
页码:65 / 74
页数:10
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