Simulated Asian-Australian monsoon with a spectral element atmospheric general circulation model

International Conference on Water Resource and Environment 2016

地球科学;生态环境科学

Liu, X.Y.^1

College of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing

211101, China^1

关键词: Atmospheric general circulation models;    Bottom boundary conditions;    Intertropical convergence zone;    Precipitation data;    Precipitation rates;    Satellite remote sensing;    Spectral element model;    Surface air temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/39/1/012041/pdf
DOI  :  10.1088/1755-1315/39/1/012041

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A low-top version of SEMANS (Spectral Element Model with Atmospheric Near Space resolved) has been used to carry out numerical simulation on characteristics of Asian- Australian Monsoon (A-AM) in the work. The simulation results are validated with ERA- Interim reanalysis dataset and precipitation data from satellite remote sensing. It's shown that the model can reproduce the major climatic features of A-AM with stronger easterly in the tropical Eastern Pacific, and a weaker northerly component in the Northern Hemisphere.The simulated precipitation rate is larger and the double ITCZ (Inter-Tropical Convergence Zone) in the tropical Eastern Pacific in the northern spring is not reproduced. A due to the absence of variation longer than a year in the bottom boundary conditions, the model cannot reproduce the relationships between the monsoon indexes and the surface air temperature in the broad area near the equator.