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A comparison study of the simulation accuracy between WRF and MM5 in simulating local atmospheric circulations over Greater Beijing
Alternative TitleA comparison study of the simulation accuracy between WRF and MM5 in simulating local atmospheric circulations over Greater Beijing
Liu ZhenXin1; Liu ShuHua1; Hu Fei3; Li Ju2; Ma YanJun4; Liu HePing5
2012
Source PublicationSCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
Volume55Issue:3Pages:418-427
AbstractSeveral multi-scale numerical simulation experiments were carried out using the mesoscale modeling systems MM5V3.7 and WRFV2.2 for Greater Beijing to estimate the accuracy of WRF and MM5 in simulating the characteristics and variations of mesoscale local circulation in the atmospheric boundary layer of this area. We simulated the horizontal distribution and diurnal variations of temperature and wind fields near the ground and compared them with Automatic Weather System (AWS) data collected from 19 AWS stations in Beijing. Correlation and error analyses were also made. The modeling and statistical results showed that both WRF and MM5 model the temperature field near the ground significantly better than they model the wind field. The temperature field simulated by MM5 is more coincident than that of WRF with the AWS observation records, while WRF does better than MM5 in simulating the wind field, especially under the condition of gusty wind. Neither WRF nor MM5 can capture the fine structure of urban architectural complexity, which is the main error in the wind field simulation. Both models underestimate the land surface temperature at night and overestimate the temperature during the day. All the above results are supported by statistical analysis.
Other AbstractSeveral multi-scale numerical simulation experiments were carried out using the mesoscale modeling systems MM5V3.7 and WRFV2.2 for Greater Beijing to estimate the accuracy of WRF and MM5 in simulating the characteristics and variations of mesoscale local circulation in the atmospheric boundary layer of this area. We simulated the horizontal distribution and diurnal variations of temperature and wind fields near the ground and compared them with Automatic Weather System (AWS) data collected from 19 AWS stations in Beijing. Correlation and error analyses were also made. The modeling and statistical results showed that both WRF and MM5 model the temperature field near the ground significantly better than they model the wind field. The temperature field simulated by MM5 is more coincident than that of WRF with the AWS observation records, while WRF does better than MM5 in simulating the wind field, especially under the condition of gusty wind. Neither WRF nor MM5 can capture the fine structure of urban architectural complexity, which is the main error in the wind field simulation. Both models underestimate the land surface temperature at night and overestimate the temperature during the day. All the above results are supported by statistical analysis.
KeywordAIR-QUALITY APPLICATIONS SWEDISH WEST-COAST BOUNDARY-LAYER LAND-SURFACE CONVECTIVE PARAMETERIZATION MESOSCALE MODEL PART I SENSITIVITY SCHEMES PBL WRF MM5 Greater Beijing local atmospheric circulation simulation accuracy comparison study
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Institute of Beijing Urban Meteorology, China Meteorological Administration] ; [China Scientific and Technological Ministry] ; [National Science and Technology Sustain Program] ; [Central Public Welfare Special Fund Program for the Institute and Higher Education]
CSCD IDCSCD:4538062
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/144097
Collection中国科学院金属研究所
Affiliation1.北京大学
2.China Meteorol Adm, Institute Beijing Urban Meteorol, Beijing 100089, Peoples R China
3.中国科学院
4.中国科学院金属研究所
5.中国科学院植物研究所
Recommended Citation
GB/T 7714
Liu ZhenXin,Liu ShuHua,Hu Fei,et al. A comparison study of the simulation accuracy between WRF and MM5 in simulating local atmospheric circulations over Greater Beijing[J]. SCIENCE CHINA-EARTH SCIENCES,2012,55(3):418-427.
APA Liu ZhenXin,Liu ShuHua,Hu Fei,Li Ju,Ma YanJun,&Liu HePing.(2012).A comparison study of the simulation accuracy between WRF and MM5 in simulating local atmospheric circulations over Greater Beijing.SCIENCE CHINA-EARTH SCIENCES,55(3),418-427.
MLA Liu ZhenXin,et al."A comparison study of the simulation accuracy between WRF and MM5 in simulating local atmospheric circulations over Greater Beijing".SCIENCE CHINA-EARTH SCIENCES 55.3(2012):418-427.
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