Improvement of land surface temperature simulation over the Tibetan Plateau and the associated impact on circulation in East Asia

被引：29
|
作者：
Zhuo, Haifeng [1 ,2 ]
Liu, Yimin [1 ]
Jin, Jiming [3 ,4 ]
机构：
[1] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
[2] Univ Chinese Acad Sci, Beijing, Peoples R China
[3] Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling, Peoples R China
[4] Utah State Univ, Dept Watershed Sci & Plants Soils & Climate, Logan, UT 84322 USA
来源：
ATMOSPHERIC SCIENCE LETTERS | 2016年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Tibetan Plateau; land surface temperature; East Asian summer monsoon; WRF; CLM; INFRARED COOLING PROFILE; SKIN TEMPERATURE; SUMMER; MODEL; VARIABILITY; CHINA;
D O I：
10.1002/asl.638
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
A new sensible-heat (SH) parameterization was used in the Weather Research and Forecasting model to improve the vertical heat transfer simulation in arid regions. With this new scheme, the simulated SH decreased, resulting in a 2 degrees C reduction of the cold bias in the land surface temperature over the Tibetan Plateau. The weakened SH led to anticyclonic circulation and cyclonical flow changes in the northern East China due to Rossby wave propagation. The summer-rainfall in East Asian is marginally improved. It is suggested that the SH simulation over the Plateau is a land-atmosphere coupling issue that is important to the dynamical downscaling in East Asian.
引用
收藏
页码：162 / 168
页数：7
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