| MM5 Simulations of the China Regional Climate During the LGM. Ⅱ： Influence of Change of Land Area,Vegetation, and Large-scale Circulation Background |
| |
| 引用本文： | 刘煜,;何金海,;李维亮,;陈隆勋.MM5 Simulations of the China Regional Climate During the LGM. Ⅱ： Influence of Change of Land Area,Vegetation, and Large-scale Circulation Background[J].Acta Meteorologica Sinica,2008,22(1):22-30. |
| |
| 作者姓名： | 刘煜 ;何金海 ;李维亮 ;陈隆勋 |
| |
| 作者单位： | LIU Yu（Chinese Academy of Meteorological Sciences, Belting 100081; Nanjing University of Information Science and Technology, Nanjing 210044） ;
HE Jinhai（Nanjing University of Information Science and Technology, Nanjing 210044） ;
LI Weiliang（Chinese Academy of Meteorological Sciences, Belting 100081） ;
CHEN Longxun（Chinese Academy of Meteorological Sciences, Belting 100081） ; |
| |
| 基金项目： | Supported by Key Projects of the National Natural Science Foundation of China under Nos. 40231011, 90102055, and 40233034. |
| |
| 摘 要： | Using a regional climate model MM5 nested to an atmospheric global climate model CCM3, a series of simulations and sensitivity experiments have been performed to investigate the relative LGM climate response to changes of land-sea distribution, vegetation, and large-scale circulation background over China. Model results show that compared with the present climate, the fluctuations of sea-land distribution in eastern Asia during the LGM result in the temperature decrease in winter and increase in summer. It has significant impact on the temperature and precipitation in the east coastal region of China. The impact on precipitation in the east coastal region of China is the most significant one, with 25%-50% decrease in the total precipitation change during the LGM. On the other hand, the changes in sea-land distribution have less influence on the climate of inland and western part of China. During the LGM, significant changes in vegetation result in temperature alternating with winter increase and summer decrease, but differences in the annual mean temperature are minor. During the LGM, the global climate, i.e., the large-scale circulation background has changed significantly. These changes have significant influences on temperature and precipitation over China. They result in considerable temperature decreases in this area, and direct the primary patterns and characteristics of temperature changes. Results display that, northeastern China has the greatest temperature decrease, and the temperature decrease in the Tibetan Plateau is larger than in the eastern part of China located at the same latitude. Moreover, the change of large-scale circulation background also controls the pattern of precipitation change. Results also show that, most of the changes in precipitation over western and northeastern parts of China are the consequences of changing large-scale circulation background, of which 50%-75% of precipitation changes over northern and eastern China are the results of changes in large-scale circulation backgrou
|
| 关 键 词： | 海岸分布 植被 患流量 LGM 中国 气候 |
MM5 Simulations of the China Regional Climate During the LGM. Ⅱ： Influence of Change of Land Area,Vegetation, and Large-scale Circulation Background |
| |
| LIU Yu,HE Jinhai,LI Weiliang,CHEN Longxun,.MM5 Simulations of the China Regional Climate During the LGM. Ⅱ： Influence of Change of Land Area,Vegetation, and Large-scale Circulation Background[J].Acta Meteorologica Sinica,2008,22(1):22-30. |
| |
| Authors: | LIU Yu HE Jinhai LI Weiliang CHEN Longxun |
| |
| Institution: | LIU Yu, HE Jinhai , LI Weiliang, CHEN Longxun( 1 Chinese Academy of Meteorological Sciences, Beijing 100081 2 Nanjing University of Information Science and Technology, Nanjing 210044) |
| |
| Abstract: | sea-land distribution, vegetation, large-scale circulation background, LGM, China regional climate |
| |
| Keywords: | sea-land distribution vegetation large-scale circulation background LGM China regionalclimate |
| 本文献已被 维普 等数据库收录！ |
|
