Plateau Meteorology

Plateau Meteorology >

2015 , Vol. 34 >Issue 5: 1474 - 1485

DOI: https://doi.org/10.7522/j.issn.1000-0534.2014.00057

Two Clouds Merger Cases Observation by Dual Linear Polarization Radar

  • HUANG Yong ,
  • WU Linlin ,
  • FENG Yan ,
  • ZHAI Jing ,
  • LIU Huijuan ,
  • YUAN Ye
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  • Anhui Meteorological Institute, Hefei 230031, China;2. Anhui Key Lab of Atmospheric Science and Satellite Remote Sensing, Hefei 230031, China;3. Anhui Weather Modification Office, Hefei 230031, China

Received date: 2013-08-29

  Online published: 2015-10-28

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Abstract

Clouds merger is a common phenomenon in convective weather.And the conformation, dynamic character, effective for precipitation of merging process had been found from a lot of observational facts.However, the micro-physical progressed and characters cloud only been researched by numerical simulate.For the purpose to find out the micro-physical characters of clouds merging data of dual linear polarization radar at Shouxian station were analyzed and two clouds merger cases were researched on early July 2008.As the results shown, only several merging processes of small echo blocks have be found in in the region of convective clouds merging in satellite imagery.With merger of echo blocks, the reflectivity, radial velocity and specific differential propagation phase shift are all raised.As to differential reflectivity, the strong centers are moved to the joint of two blocks at the initial stage.Then two centers are combined into a new center, and a negative center is appeared symmetrically.Furthermore, there are rain drops fields at the joint during the period of echoes merging.And only in the merger process, which is initial form the low layer, the quantity of ice partial could be increased.

Key words： Convective clouds me; Dual linear polariza; Particle phase state; Observation study

Cite this article

HUANG Yong , WU Linlin , FENG Yan , ZHAI Jing , LIU Huijuan , YUAN Ye . Two Clouds Merger Cases Observation by Dual Linear Polarization Radar[J]. Plateau Meteorology, 2015 , 34(5) : 1474 -1485 . DOI: 10.7522/j.issn.1000-0534.2014.00057

References

[1]项续康.1989年7月川东大暴雨中尺度对流系统分析[J].气象, 1995, 21(3): 30-34.
[2]漆梁波.特大暴雨非常规资料的初步分析[J].气象, 2002, 28(1): 34-38.
[3]陈秋萍, 冯晋勤, 陈冰, 等.新一代天气雷达观测的福建夏季对流云特征[J].应用气象学报, 2003, 14(增刊l): 180-186.
[4]林永辉, 布和朝鲁.2001 年8 月初上海强暴雨中尺度对流系统的数值模拟研究[J].气象学报, 2003, 61(2): 196-202.
[5]郭荣芬, 鲁亚斌, 李燕, 等.“伊布都”台风影响云南的暴雨过程分析[J].高原气象, 2005, 24(5): 784-791.
[6]张腾飞, 张杰, 马联翔.一次西南涡影响云南强降水过程分析[J].气象科学, 2006, 26(4): 376-383.
[7]李改琴, 梁海河, 王树文, 等.2007.台风海棠远距离暴雨中尺度系统特征[J].气象, 33(8): 18-22.
[8]孙晶, 楼小凤, 胡志晋, 等.梅雨期暴雨个例模拟及其中小尺度结构特征分析研究[J].大气科学, 2007, 31(1): 1-18.
[9]何立富, 陈涛, 周庆亮, 等.北京“7.10”暴雨β中尺度对流系统分析[J].应用气象学报, 2007, 18(5): 655-665.
[10]王昂生, 赵小宁, 康玉霞, 等.昔阳地区冰雹云形成过程的一些特征[J].大气科学, 1980, 4(2): 456-460.
[11]许爱华, 马中元, 郭艳.“7.17”庐山雷击事件分析[J].气象, 2004, 30(6): 35-38.
[12]曹治强, 方宗义, 方翔.2007年7月皖苏北部龙卷风初步分析[J].气象, 2008, 34(7): 33-37.
[13]叶宗秀, 陈倩, 郭昌明, 等.冰雹云的闪电频数特征及其在防雹中的应用[J].高原气象, 1982, 1(2): 53-59.
[14]于仁成.高空槽过境前后的雹云回波特点[J].气象, 1982, 8(12): 28-29.
[15]黄勇, 覃丹宇, 邱学兴.暴雨过程中对流云合并现象的观测与分析[J].大气科学, 2012, 36 (6): 1135-1149.
[16]甄长忠.78810冰雹过程的分析[J].大气科学, 1981, 5(4): 456-460.
[17]王昂生, 赵小宁, 康玉霞, 等.昔阳地区冰雹云形成过程的一些特征[J].大气科学, 1980, 4(2): 456-460.
[18]胡雯, 黄勇, 汪腊宝.夏季江淮区域对流云合并的基本特征及影响[J].高原气象, 2010, 29(1): 206-213.
[19]黄勇, 王雪芹, 苏爱芳, 等.江淮夏季强天气过程中对流云合并现象的卫星观测[J].遥感学报, 2013, 17(2): 352-362.
[20]Orville H D, Kuo Y H, Farley R D, et al.Numerical simulation of cloud interactions[J].J Rech Atmos, 1980, 14: 499-516.
[21]Tao W K, Simpson J.Cloud interactions and merging: Numerical simulations[J].J Atmos Sci, 1984, 41: 2901-2917.
[22]Tao W K, Simpson J.A further study of cumulus interactions and mergers: Three dimensional simulations with trajectory analyses[J].J Atmos Sci, 1989, 46: 2974-3004.
[23]黄美元, 徐华英, 吉武胜.积云合并及相互影响的数值模拟研究[J].中国科学(B辑), 1987, 17(2): 214-224.
[24]Turpeinen O, Yan M K.Comparisons of result form a three-dimensional cloud model with statistics of radar echo on day 261 of GATE[J].Mon Wea Rev, 1981, 109(7): 1495-1511.
[25]罗哲贤, 徐祥德, 陈联寿.涡旋合并的数值研究[J].大气科学, 2002, 26(6): 807-816.
[26]付丹红, 郭学良.积云合并在强对流系统形成中的作用[J].大气科学, 2007, 31(4): 635-644.
[27]翟菁, 胡雯, 冯妍, 等.不同发展阶段对流云合并过程的数值模拟[J].大气科学, 2012, 36(4): 697-712.
[28]刘黎平, 王致君.我国双线偏振雷达探测理论及应用研究[J].高原气象, 1997, 16(1): 99-104.
[29]刘黎平, 王致君.双线偏振雷达探测的云和地物回波的特性及其识别方法[J].高原气象, 1996, 15(3): 303-310.
[30]肖艳姣, 王斌, 陈晓辉, 等.移动X波段双线偏振多普勒天气雷达差分相位数据质量控制[J].高原气象, 2012, 31(1): 223-230.
[31]史朝, 何建新, 李学华, 等.X波段天气雷达地物回波的双偏振参量特征分析及应用[J].高原气象, 2013, 32(5): 1478-1484, doi: 10.7522/j.issn.1000-0534.2012.00137.
[32]杜牧云, 刘黎平, 胡志群.双线偏振雷达差分反射率因子系统误差订正[J].高原气象, 2013, 32(4): 1174-1185, doi: 10.7522/j.issn.1000-0534.2012.00084.
[33]马建立, 苏德斌, 金永利, 等.X波段双线性偏振雷达电磁波衰减对冰雹识别的影响[J].高原气象, 2012, 31(3): 825-835.
[34]胡志群, 刘黎平, 吴林林.C波段偏振雷达几种系统误差标定方法对比分析[J].高原气象, 2014, 33(1): 221-231, doi: 10.7522/j.issn.1000-0534.2013.00134.
[35]Ryzhkov A V, Zrnic D S.Assessment of rainfall measurement that uses specific differential phase[J].J Appl Meteor, 1996, 35(11): 2080-2090.
[36]Zrnic D S, Ryzhkov A.Advantages of rain measurements using specific differential phase[J].J Atmos Oceanic Technol, 1996, 13(2): 454-464.
[37]刘黎平, 钱永甫, 王致君.用双线偏振雷达研究云内粒子相态及尺度的空间分布[J].气象学报, 1996, 54(5): 590-599.
[38]Gorgucci E, Chandrasekar V, Bringi V N, et al.Estimation of raindrop size distribution parameters from polarimetric radar measurements[J].J Atmos Sci, 2002, 59(15): 2373-2384.
[39]Brandes E A, Zhang Guifu, Vivekanandan J.Drop size distribution retrieval with polarimetric radar: Model and application[J].J Appl Meteor, 2004, 43(3): 461-475.
[40]Liu Liping, Hu Zhiqun, Fang Wengui, et al.Calibration and data quality analysis with mobile C-band polarimetric radar[J].Acta Meteor Sini, 2010, 24(4): 501-509.
[41]曹俊武, 刘黎平, 葛润生.模糊逻辑法在双线偏振雷达识别降水粒子相态中的研究[J].大气科学, 2005, 29(5): 827-836.
[42]许健民, 方宗义, 徐建平, 等.气象卫星—系统、资料及其在环境中的应用[M].北京: 气象出版社, 1994: 234-236.
[43]黄勇, 翟菁, 邱学兴.淮河流域一次强对流性天气过程的遥感分析[J].气象与环境学报, 2013, 29(2): 19-22.
[44]黄勇, 覃丹宇.舟曲泥石流天气过程中云团合并的卫星观测[J].应用气象学报, 2013, 24(1): 87-98.
[45]李修芳, 范蕙君, 燕芳杰, 等.用增强显示云图确定热带气旋强度的方法[J].应用气象学报, 1993, 4(3): 362-369.
[46]Cunning J B, DeMaria M.An investigation of development of cumulonimbus systems over South Florida, Part I: Boundary layer interactions[J].Mon Wea Rev, 1986, 114: 5-24.
[47]Simpson J, Westcott N E, Clerman R J, et al.On cumulus mergers[J].Arch Meteor Geophys Bioklimatol, 1980, 29A: 1-40.
[48]李艳伟, 牛生杰, 姚展予, 等.云合并合的初始位置探讨[J].大气科学, 2009, 33(5): 1015-1026.
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