| 2009年7月广西一次暴雨过程的数值模拟和诊断分析 |
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| 引用本文： | 骆凯,秦丽,徐开江,李耀东.2009年7月广西一次暴雨过程的数值模拟和诊断分析[J].气象与减灾研究,2011(4):37-44. |
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| 作者姓名： | 骆凯 秦丽 徐开江 李耀东 |
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| 作者单位： | [1]解放军95072部队气象中心,广西南宁530021 [2]解放军95429部队气象中心,云南昆明650031 [3]北京航空气象研究所,北京100085 |
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| 基金项目： | 国家自然科学基金项目（编号：41175046） |
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| 摘 要： | 运用WRF模式对2009年7月发生在广西地区的一次暴雨过程进行了数值模拟,并利用模拟结果进行诊断分析.结果表明,模式能够合理地再现此次暴雨天气过程.在对流层中低层,水汽通量散度的负高值区、假相当位温广义波作用量密度和z-螺旋度的正高值区,与强降水落区都存在较好的对应关系；水汽通量散度负值中心大小及负值区向上伸展的高度、...
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| 关 键 词： | 暴雨 数值模拟 水汽通量散度 广义波作用量密度 z-螺旋度 |
NUMERICAL SIMULATION AND DIAGNOSITC ANALYSIS OF A JULY 2009 RAINSTORM PROCESS IN GUANGXI PROVINCE |
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| Luo Kai,Qin Li,Xu Kaijiang,Li Yaodong.NUMERICAL SIMULATION AND DIAGNOSITC ANALYSIS OF A JULY 2009 RAINSTORM PROCESS IN GUANGXI PROVINCE[J].Meteorology and Disaster Reduction Research,2011(4):37-44. |
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| Authors: | Luo Kai Qin Li Xu Kaijiang Li Yaodong |
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| Affiliation: | 1.Meteorology center,No.95072 Army of PLA,Nanning 530021,China 2.Meteorology center,No.95429 Army of PLA,Kunming 650031,China 3.Beijing Aviation Meteorological Institule,Beijing 100085,China |
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| Abstract: | The WRF model is used to simulate a case of rainstorm occurred in Guangxi province in July 2009,the results of model output are used to diagnostic analysis.It is indicated that in mid-lower troposphere the high value areas of negative moist flux divergence,positive wave-activity density of pseudo-equivalent potential temperature and positive z-helicity have good correlations with the location of heavy rain.The negative value and extension height of moist flux divergence,and the value of wave-activity density of pseudo-equivalent potential temperature have some correlations with the intensity of precipitation.The variation of z-helicity intensity is also a valuable indicator of the intensity of heavy rain. |
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| Keywords: | Rainstorm Numerical simulation Moist flux divergence General wave-activity density z-helicity |
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