A heavy rain to rainstorm event on the west of Gansu Corridor in 2011 was analyzed, using observated precipitation data, NCEP/NCAR reanalysis data and simulated results. The results show that: The cause of heavy rain was geopotential height which be high in north and low in south, and the convergence of airflow of warm and moist from south and cold air from north on the west of Gansu Corridor. So much water vapor was provided by three vapor sources for this heavy rain process. Before the rainstorm, the atmospheric energy is accumulated, then the energy began to release when heavy rain occurred, and finally to the end of the rainstorm, the energy release over. The entire layer was updraft over the precipitation area when the heavy rain occurred. The strong updraft not only made the warm and moist air convergence and uplift but also released potential heat and heated atmosphere during the ascent, then formed positive feedback and made the vertical movement enhance. The Q-vector was analyzed. It is showed that distribution of Q-vector was in accordance with the precipitation area. There was no good correlation between the intensity of the Q-vector convergence and the intensity of rainstorm, but center value of Q-vector convergence less than -3×10-15 hPa-1·s-3 if only there is precipitation. So Q-vector convergence zone can be better forecast rainstorm and large rainfall districts, but not able to forecast rainstorm intensity. Finally, through numerical simulation, the actual precipitation value center was coincidence with simulated precipitation center. The movement and development of atmosphere circulation was analyzed by high space and time resolution numerical model results. Simulation of the MCAPE and radar reflectivity factor and other physic index has good instruction significance to this precipitation process.
[1]倪允琪, 周秀骥, 张人禾, 等. 我国南方暴雨的试验与研究[J]. 应用气象学报, 2006, 17(6):690-704.
[2]周秀骥, 薛纪善, 陶祖钰. 98 年华南暴雨科学试验研究[M]. 北京: 气象出版社, 2003: 1-228.
[3]陶诗言, 倪允琪, 赵思雄, 等. 1998 夏季中国暴雨形成机理与预报研究[M]. 北京: 气象出版社, 2001: 1-184.
[4]伍荣生, 高守亭, 谈哲敏, 等. 锋面过程与中尺度扰动[M]. 北京: 气象出版社, 2004: 1-168.
[5]孙建华, 张小玲, 卫捷, 等. 淮河流域暴雨过程的诊断分析和模拟[J]//张庆云, 王会军, 林朝晖, 等. 中国天气气候异常成因研究——2003 年. 北京: 气象出版社, 2004: 21-88.
[6]张文建, 许健民, 方宗义, 等. 暴雨系统的卫星遥感理论和方法[M]. 北京: 气象出版社, 2004: 1-429.
[7]程明虎, 刘黎平, 张沛源, 等. 暴雨系统的多普勒雷达反演理论和方法[M]. 北京: 气象出版社, 2004: 1-254.
[8]丁士晟. 吉林省大暴雨的统计分析[J]. 大气科学, 1983, 7(4): 432-437.
[9]卢娟, 孟莹, 潘静, 等. 近42年辽宁极端降水事件分析[J ]. 辽宁气象, 2004(4): 8-9.
[10]景学义, 方丽娟, 郭家林, 等. 黑龙江省暴雨的特征及天气学分类[J]. 自然灾害学报, 2005, 14 (1): 54-58.
[11]刘实. 东北地区夏季降水的气候变化区划[J]. 吉林气象, 2000(3): 12-14.
[12]何由, 阳坤, 姚檀栋, 等. 基于WRF模式对青藏高原一次强降水的模拟[J]. 高原气象, 2012, 31(5):1183-1191.
[13]姜学恭, 李夏子, 李彰俊, 等. 一次阻塞型华北对流性暴雨过程的诊断分析和数值模拟[J]. 高原气象, 2012, 31(5):1283-1393.
[14]赵玉春, 许小峰, 崔春光. 中尺度地形对梅雨锋暴雨影响的个例研究[J]. 高原气象, 2012, 31(5): 1268-1282.
[15]李安泰, 何宏让, 张云. WRF模式陆面参数扰动对一次西北暴雨影响的数值模拟[J]. 高原气象, 2012, 31(1):65-75.
[16]谌芸, 李泽椿. 青藏高原东北部区域性大到暴雨的诊断分析及数值模拟[J]. 气象学报, 2005, 63(3):289-300.
[17]王劲松, 李耀辉, 康凤琴, 等. 西北区东部一次暴雨的数值模拟试验[J]. 高原气象, 2002, 21(3):258-266.
[18]井喜, 李栋梁, 李明娟, 等. 青藏高原东北侧一次突发性大暴雨环境场综合分析[J]. 高原气象, 2008, 27(1):46-57.
[19]任余龙, 寿绍文, 李耀辉. 西北区东部一次大暴雨过程的湿位涡诊断与数值模拟[J]. 高原气象, 2007, 26(2):344-352.
[20]杜继稳, 李明娟, 张弘, 等. 青藏高原东北侧突发性暴雨地面能量场特征分析[J]. 高原气象, 2004, 23(4):453-457.
[21]张家宝, 邓子风. 新疆降水概论[M]. 北京:气象出版社, 1987: 1-31.
[22]西北暴雨编写组. 西北暴雨[M]. 北京:气象出版社, 1992: 1-24.
[23]白肇烨, 徐国昌. 中国西北天气[M]. 北京:气象出版社, 1988: 1-443.
[24]董安祥, 谩启宝, 向军. 西北地区降水之最[J]. 甘肃气象, 1977, 15(2): 12-13.
[25]栾晨, 宋敏红, 蔡英, 等. 西北区西部夏半年强降水分布与变化特征[J]. 高原气象, 2012, 31(3):629-637.
[26]文宝安. 物理量计算及其在暴雨分析预报中的应用——水汽通量与水汽通量散度[J]. 气象, 1980, 7: 34-36.
[27]戴兴刚, 李维京, 马柱国. 近几十年新疆水汽源地变化特征[J]. 自然科学进展, 2006, 16(2):1651-1656.
[28]杨莲梅, 张云惠, 汤浩. 2007年月新疆三次暴雨过程的水汽特征分析[J]. 高原气象, 2012, 31(4):963-973.
[29]陶诗言. 有关暴雨分析预报的一些问题[J]. 大气科学, 1977, 1: 64-72.
[30]苗爱梅, 贾利冬, 李智才, 等. “091111”山西特大暴雪过程的流型配置及物理量诊断分析[J]. 高原气象, 2011, 30(4):969-981.
[31]Hoskins B J, Pedder M. The diagnosis of middle latitude synoptic development[J]. Quart J Roy Meteor Soc, 1980, 106(450):707-719.
[32]杨小艳, 曹希孝. 准地转Q矢量诊断场与暴雨关系的分析[J]. 气象, 1995, 21(11):17-21.
[33]张杰. 中小尺度天气学[M]. 北京:气象出版社, 2006.
[34]董安祥, 郭蕙, 贾建颖, 等. 青藏高原东部一次大雪过程的Q矢量分析[J]. 南京气象学院报, 2001, 24(3):406-409.
[35]Dosell III C A, Ramsmussen E N. The effect of neglecting the virtual temperature correction CAPE calculations[J]. Wea Forecasting, 1994, 9: 625-629.
[36]俞小鼎, 姚秀萍, 熊廷南, 等. 多普勒天气雷达原理与业务应用[M]. 北京:气象出版社, 2006: 17-45.