RegCM3对三江源地区气候的模拟  

Simulation of wetland area change effects on the climate in Sanjiangyuan area by RegCM3

作　　者：纪玲玲[1] 郭安红[2] 申双和[3] 王兰宁[2] 刘文泉[2] 

机构地区：[1]吉林省气象局,吉林长春130061 [2]中国气象科学研究院,北京100081 [3]南京信息工程大学,江苏南京210044

出　　处：《草业科学》2011年第3期365-371,共7页Pratacultural Science

基　　金：国家自然科学基金项目(40475018);国家科技部社会公益项目(2005dib3z109)

摘　　要：利用区域气候模式(RegCM3)研究三江源地区湿地面积的变化对该地区气候的影响,通过对气候模式下垫面覆盖类型参数化方案的改变,主要是湿地覆盖面积的变化,模拟湿地覆盖面积变化产生的气候效应,探讨湿地变化与气候变化之间的相互效应。模式数值模拟1980年和2000年两种近实况下垫面情况下三江源地区15年的气候变化,对18个气象站气温和降水量变化规律进行对比分析。结果表明,湿地面积下降,区域气温升高,降水量下降,这种趋势在西部地区表现尤为明显。Present study explored the effects of wetland area change in Sanjiangyuan area on the climate by using RegCM3 model.The meteorological effect was simulated by adjusting the parameterized scheme of underlying surface covering with the meteorological model,mainly the wetland area change,and the interactional effect between the change of marsh area and climate was agrued.The rule of temperature and rainfall variation among 18 different meteorological sites were analysed by simulating the climate change for 15 years using RegCM3 model through the actual underlying surface in 1980 and 2000.The results showed that when wetland area descended,the regional temperature increased,the rainfall decreased,this trend was more obvious in western area.

关 键 词：REGCM3 湿地面积 气候变化 定量分析 冷湿效应 

分 类 号：P467[天文地球—大气科学及气象学]