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《Chinese Journal of Atmospheric Sciences》 2015-01
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A Thermodynamic Mechanism Analysis on Enhancement or Dissipation of Convective Systems from the Mountains under Weak Synoptic Forcing

XIAO Xian;CHEN Mingxuan;GAO Feng;WANG Yingchun;Institute of Urban Meteorology,China Meteorology Adminstration;Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Science;University of Chinese Academy of Sciences;Beijing Meteorological Bureau;  
A preliminary analysis of thermodynamic mechanisms of two well-defined convective systems over Beijing area and its vicinity was studied with a three-dimensional cloud-scale numerical model and a rapid-update cycling 4DVar assimilation technique using data from four of China's new-generation weather radar stations(CINRADs). The two convective systems were both under weak synoptic forcing and precipitation stratification in the low-middle layer. The cooperation of the cold pool and wind field act as trigger and strengthening mechanisms for the storm, which could propagate from the mountains to the plains. Originally, the cold pool was generated due to the uneven distribution of the thermodynamic field, and blocks wind propagated at the southern edge of the cold pool. The mechanism resulted in relatively high convergence, relatively vertical wind shear and helicity. In the first case, which occurred on June 26, 2009, a relatively strong cool pool located to the south, cut off the warm southeastern inflow that caused distinct divergence from the plains to the mountains, causing storms to continually weaken on the mountains. However, outflow from the dissipating storms moved over southeast winds, resulting in high shear and helicity, and therefore new storms formed at the edge of the original cool pool. Due to low shear over the plains, the cool pool extended more quickly than the storms, causing the storms to dissipate. For the second case on August 1, 2009, the cold pool was located to the north. Veering winds that were forced and blocked by the cool pool and mountains formed distinct and strong convergences via. When storms reached the foothills, the original long-term cool pool still provided relatively high convergence, shear and helicity for the storm spreading from the mountains to the plains. New and original cool pools squeezed each other, resulting in an intensified northern storm. Storms drifted toward each other, eventually leading to linearly organized echoes. As linear echoes spread over the plains, the perturbation temperature shows the cold pool further intensified and expanded. Gust fronts intensified, tilted forward, and moved away from the storm. Thermodynamics of the linear echoes showed some characteristics of a squall line. However, the weak wind shear in the path of storm propagation resulted in disequilibrium with the cold pool. The gust front blew out the convergence line away from the original storm, which became weaker. These data, combined other investigations, imply that simulated helicity and shear are useful to indicate development of the storms. Finally, a conceptual model was developed using observed data and simulation results, showing low-level dynamic and thermodynamic collocation significantly affects development and evolution of these storms from the mountains to the plains.
【Fund】: 公益性行业(气象)科研专项项目GYHY201306008;; 国家自然科学基金项目41305041
【CateGory Index】: P445
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Chinese Journal Full-text Database 9 Hits
1 CHEN Mingxuan~1 WANG Yingchun~2 GAO Feng~1 WANG Tingling~(1,3) 1.Institute of Urban Meteorology,CMA,Beijing 100089,China 2.Beijing Meteorological Bureau,Beijing 100089,China 3.Chinese Academy of Meteorological Sciences,Beijing 100081,China;A low-level thermo-dynamical retrieval system based on the radar data 4DVar and a preliminary analysis of its applications in support of the Beijing 2008 Olympics[J];Acta Meteorologica Sinica;2011-01
2 CHEN Min FAN Shuiyong ZHENG Zuofang ZHONG Jiqin Institute of Urban Meteorology,CMA,Beijing 100089,China;The performance of the proximity sounding based on the BJ-RUC system and its preliminary implementation in the convective potential forecast[J];Acta Meteorologica Sinica;2011-01
3 Jiao Meiyan Bi Baogui (National Meteorological Center, Beijing 100081);Mesoscale Structure Analysis of Topography-induced Heavy Rainfall in Beijing in Summer[J];Meteorological Monthly;2005-06
4 Wang Yubin1 Zhou Haiguang2 Yu Dongchang1 Zhou Yong3 Su Debin1 Liang Feng1(1.Beijing Meteorological Bureau,100089;2.State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences;3.National Meteorological Information Center);Real Time Data Processing Technique on Very Short-Range and Nowcasting for Beijing 2008 Olympic Games[J];Meteorological Monthly;2008-07
5 WANG Tingting~1 WANG Yingchun~2 CHEN Mingxuan~3 ZHANG Wenlong~3 1 Chinese Academy of Meteorological Sciences,Beijing 100081 2 Beijing Meteorological Bureau,Beijing 100089 3 Institute of Urban Meteorology,CMA,Beijing 100089;The Contrastive Analysis of Formation of Dry and Moist Thunderstorms in Beijing[J];Meteorological Monthly;2011-02
6 XIAO Xian1,LIAO Fei2,XIAO Hui3,JI Lei4,YU Hai-yan4(1 Institute of Urban Meteorology,CMA,Beijing 100089,China;2.Guangzhou Institute of Tropical and Marine Meteorology,CMA,Guangzhou 510080,China;3.The Institute of Atmospheric Physics,Beijing 100029,China;4.Beijing Meteorology Bureau,Beijing 100089,China);SYSTEMATIC VARIATION OF DROP SIZE IN CONVECTIVE OF BEIJING AND RADAR-RAINFALL RELATIONS[J];Journal of Tropical Meteorology;2010-04
7 CHEN Mingxuan1 WANG Yingchun2 1. Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China 2. Beijing Meteorological Bureau, Beijing 100089, China;Numerical simulation study of interactional effects of the low-level vertical wind shear with the cold pool on a squall line evolution in North China[J];Acta Meteorologica Sinica;2012-03
8 CHEN Mingxuan;WANG Yingchun;XIAO Xian;GAO Feng;Institute of Urban Meteorology,China Meteorological Administration;Beijing Meteorological Service;;Initiation and propagation mechanism for the Beijing extreme heavy rainstorm clusters on 21 July 2012[J];Acta Meteorologica Sinica;2013-04
9 XIAO Xian;WANG Yingchun;CHEN Mingxuan;GAO Feng;Institute of Urban Meteorology,China Meteorological Administration;Beijing Meteorological Service;;A mechanism analysis of the thermo-dynamical field of a suddenly intensifying storm from mountains in the Beijing area with the radar data 4DVar[J];Acta Meteorologica Sinica;2013-05
Chinese Journal Full-text Database 10 Hits
1 WANG Yilin, and WU Wei Shandong Provincial Meteorological Institute, Jinan 250031, P.R.China;A New Method in Determining Potential Region of Precipitation Enhancement Above Coastal Land[J];中国海洋大学学报(英文版);2010-04
2 QIAN Jun-Ping 1,5, HUANG Fei2, WANG Guo-Fu3, LIU Wan-Xia1, CUI Zu-Qiang4, ZHENG Zhi-Hong4(1. Guangzhou Institute of Geography, Guangzhou 510070, China; 2. Departmeat of Marine Meterology, Ocean University of China, Qingdao 266003 China; 3.Meteorological Information Centre (NMIC), China Meteorological Administration (CMA), Beijing 100081, China; 4. Guangzhou Meteorological Satellite Ground Station, Guangzhou 510640, China; 5. School of Geography Science and Planning, Sun Yet-Sen University, Guangzhou 510275, China);Empirical Models for Retrieval of Atmospheric Horizontal Visibility over the Sea Based on MODIS Data[J];Periodical of Ocean University of China;2006-03
3 ZHANG Su-Ping1,YANG Yu-Qiang2,WANG Xin-Gong2,WEI Jian-Su3 (1.Physical Oceanography Lab.& Ocean-Atmosphere Interaction and Climate Lab.Ocean University of China,Qingdao 266100,China;2.Qingdao Meteorological Bureau,Qingdao 266003,China;3.Jiangsu Meteorological Observatory,Nanjing 210008,China);Seasonal Variations in the Atmospheric Stratification and the Relations with the Yellow Sea Fog Season[J];Periodical of Ocean University of China;2008-05
4 FU Gang1,LI Xiao-Lan,WEI Na(Dept.of Marine Meteorology,Ocean University of China,Qingdao 266100,China);Review on the Atmospheric Visibility Research[J];Periodical of Ocean University of China;2009-05
5 LI Bin1,2,SUN Ji-Lin1,YANG Xiao-Xia3,YANG Fan2,SUN Gui-Ping2(1.Ocean University of China,Qingdao 266100,China;2.Qingdao Meteorological Bureau,Qingdao 266003,China;3.Shandong Provincial Meteorological Observatory,Jinan 250031,China);Analysis of Mesoscale Circulation Characteristic on a Local Torrential Rain Event[J];Periodical of Ocean University of China;2009-06
6 CHEN Jing-Jing1,SHENG Li-Fang1,2,ZHENG Yuan-Xin1(College of Physical and Environmental Oceanography,Ocean University of China,1.Department of Ocean Meteorology;2.Laboratory of Physical Oceanography,Ocean-Atmosphere Interaction and Climate Laboratory,Qingdao 266100,China);The Correlation Analysis of Aerosol Optical Depth,Aerosol Index and Visibility in Qingdao Spring 2006[J];Periodical of Ocean University of China;2010-01
7 WANG Dan1,SHENG Li-Fang2,3(Ocean University of China,1.Marine Meteorology Department;2.Ocean-Atmosphere Interaction Laboratory;3.The Key Laboratory of Physical Oceanography,Ministry of Education,Qingdao 266100,China);Analysis of Characteristics of Sea-Surface Radiation and Its Impact Factors in East China Sea[J];Periodical of Ocean University of China;2010-12
8 WU Xiaomin,DAI Wantian,WANG Weicheng (Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Department of Thermal Engineering,Tsinghua University,Beijing 100084,China);Theoretical analysis of interface transformation during frost crystal growth[J];Journal of Tsinghua University(Science and Technology);2007-08
9 FAN Ming-Yue1,2,3,,NIU Sheng-Jie2,LEI Heng-Chi1,ZHANG Yun4,and WU Yu-Xia11 Laboratory of Cloud-Precipitation Physics and Severe Storms,Institute of Atmospheric Physics, Chinese Academy of Sciences,Beijing 1000292 Nanjing University of Information Science and Technology,Nanjing 2100443 Weather Modification Office of Shandong Province,Jinan 2500314 Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101;Numerical Study on the Effects of the Initial Perturbation on the Occurrence and Development of Convective Cloud[J];Climatic and Environmental Research;2008-03
10 SU Debin1,2,3,SUN Chengyun1,YU Dongchang1,LI Qingchun4,and L Daren21 Beijing Meteorological Bureau,Beijing 100089 2 Laboratory for Middle Atmospheric Layer and Global Environment Observation,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029 3 Graduate University of Chinese Academy of Sciences,Beijing 100049 4 Institute of Urban Meteorology,China Meteorological Administration,Beijing 100089;The Development and Application of a Very-Short-Range Interactive Prediction System[J];Climatic and Environmental Research;2010-05
China Proceedings of conference Full-text Database 10 Hits
1 Du Xiaohui 1* , Shi Huli 1,2 , Pei Jun 1 , Hu Zhengqun 1 1 National Astronomical Observatories , Chinese Academy of Science,Beijing100012, China; 2 Graduate University of Chinese Academy of Science, Beijing100049, China;Application of generalized extended interpolation model in CAPS virtual satellite positioning system[A];[C];2012
2 QIN JIA-xiu 1 SUN ZHI-yu 2 ZHANG YING-zhe 3 GENG XIAO-xia 4 (1.Yili Meteorological Bureau,Yili,835000;2.Xinjiang Meteorological Information Center.Urumqi,830002 3.Urumqi Meteorological Bureau,Urumqi,830002);Design and Actualization for Internet Application System of New Generation Weather Radar echo Production[A];[C];2011
3 Zhao Wen-bin~(1,2) Qi Lin-lin~3 1 NO.61741 of PLA,Beijing 100081 2 NO.61936 of PLA Haikou 570100 3 Institute of Aviation Weather,Air force Academy of Arming,Beijing 100085;The Application of Doppler Radar Radial Velocity Assimilation in Numerical simulation of heavy Rainfall[A];[C];2011
4 CHEN Qianhuo, CAO Qing (College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China);Influence Factors and Alleviation Measures of Urban Heat Island[A];[C];2010
5 LIU Xichuan,GAO Taichang,LIU Lei,YANG Shuchen(Institute of Meteorology,PLA Univ.of Sci.& Tech.,Nanjing 211101,China);Discussion about Synthesis Observation Methods for Present Weather Base on Multiple Sensors[A];[C];2010
6 GAO Taichang,LIU Xichuan,LIU Lei,JIANG Zhidong (Institute of Meteorology,PLA Univ.of Sci.& Tech.,Nanjing 211101,China);Research on Key Techniques about Precipitation Measuring by Optical Methods[A];[C];2010
7 WU Jianhua1,2 NIU Deli1 LIU Songlin1 ZHAO ziming1 (1. Institute of Surveying and Mapping, Information Engineering University,66 Middle Longhai Road, Zhengzhou 450052, China; 2. 71901 Troops, Liaocheng 252000, China );Displaying Estimated Rainfall Using Radar Based on GIS[A];[C];2009
8 LI Ying-hua GU Chun-ping (Nanjing Research Institute of Electronics Technology,Nanjing 210013);Beam Scanning Characteristics and Impact Studies for Phased Array Weather Radars[A];[C];2009
9 Weng Ling~1 Yao Zhenglan~2 Chen Yu~3 (1 Chishui Meteorological Bureau,Guizhou Chishui,564700;2 Zunyi Meteorological Bureau, Guizhou Zunyi,563000);Analysis on Tourism Climate Comfort Degree of Chishui[A];[C];2010
10 Zhen Yuanyuan Zhu Hongfang Zhang Xuecheng Fang Chong Yao Cheng (Anhui Meteorological Observatory Hefei 230031);Characteristic Analysis and Early-warning of Tornado Supercell Storm[A];[C];2009
【Secondary Citations】
Chinese Journal Full-text Database 10 Hits
1 Tong Hua 1), Liu Huizhi 2), Sang Jianguo 3), and Hu Fei 2) 1)(National Meteorological Center, Beijing 100081) 2)(State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Ch emistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 10002 9) 3)(Department of Atmospheric Sciences, School of Physics, Peking University, Bei jing 100871);The Impact of Urban Anthropogenic Heat on Beijing Heat Environment[J];Climatic and Environmental Research;2004-03
2 Tao Shiyan, Zhang Qingyun and Zhang Shunli (Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029);The Great Floods in the Changjiang River Valley in 1998[J];CLIMATIC AND ENVIRONMENTAL RESEARCH;1998-04
3 Huang Ronghui (Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080);The Features of the Catastrophic Flood over the Changjiang River Basin during the Summer of 1998 and Cause Exploration[J];CLIMATIC AND ENVIRONMENTAL RESEARCH;1998-04
4 Zhao Sixiong, Sun Jianhua, Chen Hong and Zhang Feng (Institute of Atmospheric Physics, Chinese Academy of Sciences,Beijing 100080);Study of Heavy Rainfall in the Changjiang River during July 1998[J];CLIMATIC AND ENVIRONMENTAL RESEARCH;1998-04
5 Chen Hong, Sun Jianhua, Bei Naifang, Wang Jun, Zhang Baoyan, Du Changxuan, Cai Zeyi and Zhao Sixiong (Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100080);Short Range Heavy Rain Numerical Prediction in the Institute of Atmospheric Physics, Chinese Academy of Sciences during Rainy Season of 1998[J];CLIMATIC AND ENVIRONMENTAL RESEARCH;1998-04
6 Wang Yan1,2,3 Cheng Mingxuan2 Wang Ling4 (1Tianjin Municipal Meteorological Office,Tianjin 300074;2Beijing Institute of Urban Meteorology,Beijing 100089; 3State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081; 4Beijing Municipal Meteorological Office,Beijing 100089);Application of VDRAS Products in Olympic Meteorological Service[J];Meteorological Science and Technology;2010-05
8 KOO CHEN-CHAO (Institute of Geophysics and Meteorology,Academia Sinica);ON THE UTILIZATION OF PAST DATA IN NUMERICAL WEATHER FORECASTING[J];Acta Meteorologica Sinica;1958-03
9 SHI AN-YING You LAI-GUANG(Meterological Service of Hopei)(Observatory of Meteorology, Central MeteorologicalService);THE MEASUREMENT AND ANALYSIS OF ICE-NUCLEUSCON CENTRATION AT PEKING DURING THE PERIOD FROM MARCH 18TH TO APRIL 30TH IN 1963[J];Acta Meteorologica Sinica;1964-04
10 Sun Shu-qing (Institute of Atmospheric Phgsics,Academia Sinica)Ma Ting-biao (Meteorological Observatory,Shan Xi Province)Sun Ji-gai (Meteorological Observatory,Ningxia Huizu Autonomous Region);ON THE RELATION BETWEEN THE LOW LEVEL JET AND RAINSTORM[J];Acta Meteorologica Sinica;1979-04
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