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[1]翟 丽,周筠珺,蒋大凯,等.雷电活动与WRF模式动力模拟量的对比研究[J].成都信息工程大学学报,2017,(03):320-327.[doi:10.16836/j.cnki.jcuit.2017.03.014 ]
　ZHAI Li,ZHOU Yun-jun,et al.Comparative Study on the Lightning Activities and Dynamical Quantities Simulated by the Weather Research and Forecasting Model[J].Journal of Chengdu University of Information Technology,2017,(03):320-327.[doi:10.16836/j.cnki.jcuit.2017.03.014 ]
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雷电活动与WRF模式动力模拟量的对比研究

成都信息工程大学学报[ISSN:1006-6977/CN:61-1281/TN] 卷: 期数: 2017年03期 页码: 320-327 栏目: 大气科学 出版日期: 2017-02-20
Title:
Comparative Study on the Lightning Activities and Dynamical Quantities Simulated by the Weather Research and Forecasting Model
文章编号:
2096-1618(2017)03-0320-08
作者:
翟 丽1; 2;  周筠珺1; 3;  蒋大凯2;  伍 魏1;  李晓敏1
(1. 成都信息工程大学大气科学学院 高原大气与环境四川省重点实验室,四川 成都 610225; 2.辽宁省气象灾害监测预警中心,辽宁 沈阳 110166; 3.南京信息工程大学 气象灾害预报预警与评估协同创新中心,江苏 南京 210044)
Author(s):
ZHAI Li1;  2;  ZHOU Yun-jun1; 3;  JIANG Da-kai2;  WU Wei1;  LI Xiao-min1
(1. College of Atmospheric Sciences,Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu 610225, China; 2. Liaoning Meteorological Disaster Motoring and Early Warning Center, Shenyang 110166, China; 3.Meteorological Disaster Warning and Evaluating the Collaborative Innovation Center, Nanjing University of Information Science and Technology, Nanjing 210044, China)
关键词:
雷电物理学;  大气物理学与大气环境;  WRF模式;  地闪;  动力;  上升气流;  风切变
Keywords:
lightning physics;  atmospheric physics and environment;  weather research and forecasting model;  cloud-to-ground lightning;  dynamics;  updraft;  wind shear
分类号:
P446
DOI:
10.16836/j.cnki.jcuit.2017.03.014
文献标志码:
A
摘要:
为研究雷电活动中动力因子与地闪的相关性,对京津冀地区发生的一次雷暴天气过程进行WRF(weather research and forecasting)模式模拟,计算获得雷电过程中动力特征量,与地闪实况资料对比分析得出动力因子与地闪的相关性。模拟结果表明:最大上升速度与地闪频数变化趋势一致,极值后20分钟会出现地闪频数的极值。风垂直切变的大值与地闪频数呈正相关,闪电中心位置随时间的演变与风切变最大值位置随时间的演变一致。风垂直切变的大值与正地闪分布趋势有一定的相关关系。WRF模式动力输出场对地闪发生的位置和时间有很好的提示作用,可用于对雷电天气的预报与研究。
Abstract:
In order to study the relationship between dynamic output fields and cloud-to-ground(CG), a convective weather system was simulated by the WRF model, which is over the Beijing-Tianjin-Hebei region. The weather accompany with CG lightning flashes. Comparative analysis of the dynamic characteristic variables simulated by WRF and actual observation CG flashes were performed to obtain the correlation between them. The results showed that the maximum vertical velocity is related to the evolution trends of CG flash rate, the extreme flash frequency will occur 20 minutes after the extreme vertical velocity value. The large value of vertical wind shear is positively correlated with the frequency of CG lightning flash, and the evolution of the position of lightning center is consistent with the maximum of wind shear. The large value of vertical wind shear has a certain correspondence with the trend of positive flash. The simulation results suggest that the WRF mode dynamic characteristic variables can show the time and position of the flashes, and WRF model can be used for forecasting and researching thundery weather.

参考文献/References:

[1] 周筠珺,张健龙,孙凌,等.京津冀地区地闪特征的统计分析[J].灾害学,2009,24(3):101-105.
[2] 李耀东,刘健文,高守亭.动力和能量参数在强对流天气预报中的应用研究[J].气象学报,2004,62(4):401-409.
[3] 周后福,邱明燕,张爱民,等.基于稳定度和能量指标作强对流天气的短时预报指标分析[J].高原气象,2006,25(4):716-722.
[4] 言穆弘,刘欣生,安学敏,等.雷暴非感应起电机制的模拟研究Ⅱ.环境因子影响[J].高原气象,1996,15(4):53-62.
[5] Boccippio D J.Lightning scaling relations revisited[J].Journal of the atmospheric sciences,2002,59(6):1086-1104.
[6] 郑栋,张义军,吕伟涛,等.大气不稳定度参数与闪电活动的预报[J].高原气象,2005,24(2):196-203.
[7] Brook M,Nakano M,Krehbiel P,et al.The electrical structure of the Hokuriku winter thunderstorms[J].Journal of Geophysical Research:Oceans,1982,87(C2):1207-1215.
[8] 罗霞.雷暴云电结构和气象参数及卫星雷达资料与闪电关系初探[D].南京:南京信息工程大学,2006.
[9] Wilson J W,Mueller C K.Nowcasts of thunderstorm initiation and evolution[J].Weather Forecasting,1977,8(1):113-131.
[10] Wilson J W,Megenhardt D L.Thunderstorm initiation,organization and lifetime associated with Florida boundary layer convergence lines[J].Monthly Weather Review,1997,125(7):1507-1525.
[11] Wilson J W,Crook N A,Mueller C K,et al.Thunderstorms:A status report[J].Bull Amer Met Soc,1998,79(10):2079-2100.
[12] 付伟基,陆汉城,王亮,等.WRF模式对弱强迫系统中雷暴预报个例研究[J].气象科学,2009,29(3):323-329.
[13] 孙健,赵平.用WRF与MM5模拟1998年三次暴雨过程的对比分析[J].气象学报,2003,61(6):692-701.
[14] 赵鸣,周炜丹,陈潜,等.中尺度模式中辐射作用的敏感性试验[J].气象科学,2006,26(1):1-9.
[15] 蔡芗宁,寿绍文,钟青.边界层参数化方案对暴雨数值模拟的影响[J].南京气象学院学报,2006,29(3):364-370.
[16] 王洪利,张曼,杜钦.不同显式方案模拟对流风暴的不确定性[J].南京气象学院学报,2007,30(2):253-259.
[17] Rust W D.Research on electrical properties of severe thunder-storm in the Great Plains[J].Bull Amer Met Soc,1981,69(2):1286-1293.

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备注/Memo

收稿日期:2016-11-06 基金项目:四川省教育厅资助项目(16CZ0021); 北京市自然科学基金重点资助项目(8141002); 国家科技支撑计划资助项目(2015BAC 03B05)

更新日期/Last Update: 2017-02-20