一次鞍型场环流背景下高原东部切变线降水的湿Q矢量诊断分析

李山山; 李国平

doi:10.7522/j.issn.1000-0534.2016.00025

高原气象 >

2017 , Vol. 36 >Issue 2: 317 - 329

DOI: https://doi.org/10.7522/j.issn.1000-0534.2016.00025

论文

一次鞍型场环流背景下高原东部切变线降水的湿Q矢量诊断分析

李山山 ,
李国平

展开

成都信息工程大学大气科学学院, 成都 610225

收稿日期: 2015-11-20

网络出版日期: 2017-04-28

基金资助

公益性行业（气象）科研专项（GYHY201206042）；国家自然科学基金项目（41675057，91337215）

收起

Diagnostic Analysis Based on Wet Q-Vector of a Shear line with Rain on the East side of Qinghai-Tibetan Plateau under the Saddle Pattern Circulation Background Field

LI Shanshan ,
LI Guoping

Expand

School of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610225, China

Received date: 2015-11-20

Online published: 2017-04-28

Fold

摘要

利用NCEP1°×1°再分析资料和中国自动气象站与CMORPH融合的逐时降水资料，采用非地转湿 Q 矢量和水汽通量散度，对2013年7月28-29日一次高原东部切变线引起的强降水进行了诊断分析。研究结果表明强的辐合切变线沿着变形场的拉伸轴分布，切变线位于上升区和下沉区之间。500 hPa非地转湿 Q 矢量与未来6 h的累积降水中心有很好的对应关系。水汽通量散度场显示水汽辐合带基本位于切变线上，风场的分布对水汽的辐合作用尤为重要。水汽辐合带和非地转湿 Q 矢量辐合带的重叠区对强降水落区有较好的指示意义。

关键词： 切变线; 变形场; 非地转湿Q<; 水汽通量散度

本文引用格式

李山山 , 李国平 . 一次鞍型场环流背景下高原东部切变线降水的湿Q矢量诊断分析[J]. 高原气象, 2017 , 36(2) : 317 -329 . DOI: 10.7522/j.issn.1000-0534.2016.00025

Abstract

Using NCEP global 1°×1° final-analysis data and hourly merged precipitation data of automatic weather station in china and CMORPH satellite data, with the theories of non-geostrophic wet Q -vector and moisture flux divergence, a heavy rain caused by a shear line on the east side of Qinghai-Tibetan Plateau on 28-29 July 2013 have been diagnostically analyzed. The results show that: The strong convergence shear line is along the stretching axis orientation of deformation field, which is located in the area between ascending and sinking movement. Horizontal distribution of 500 hPa non-geostrophic wet Q -vector have a good prediction of the next 6 h cumulative precipitation centre. The moisture flux divergence field shows that moisture convergence band is situated in shear line basically, and the distribution of wind field has a very important effect on moisture convergence. Moreover, the overlapping areas of moisture convergence band and non-geostrophic wet Q -vector convergence band have better implications of the heavy precipitation areas.

Key words： Shear line; Deformation field; Non-geostrophic wet; Moisture flux diverg

参考文献

[1]Hoskins B J, Draghici I, Davies H C.1978.A new look at the ω-equation[J].Quart J Roy Meteor Soc, 104(1): 31-38.
[2]邓伟, 陈海波, 马振升, 等.2009.NCEP FNL全球分析资料的解码及其图形显示[J].气象与环境科学, 32(3): 78-82.
[3]Deng Wei, Chen Haibo, Ma Zhensheng, et al.2009.Decording and graphic display of the NCEP FNL global analysis data[J].Meteor Environ Sci, 32(3): 78-82.
[4]丁一汇.1989.天气动力学中的诊断分析方法[M].北京:科学出版社, 114-118.
[5]Ding Yihui.1989.Diagnostic analysis methods of synoptic dynamics[M].Beijing: Science Press, 114-118.
[6]丁一汇.2005.高等天气学 (第二版)[M].北京:气象出版社, 123-130.
[7]Ding Yihui.2005.Advanced synoptic meteorology (the second edition)[M].Beijing: China Meteorological Press, 123-130.
[8]高守亭.2007.大气中尺度运动的动力学基础及预报方法[M].北京:气象出版社, 192-196.
[9]Gao Shouting.2007.Dynamical foundation and prediction methods of mesoscale motions in the atmosphere[M].Beijing: China Meteorological Press, 192-196.
[10]何光碧, 高文良, 屠妮妮.2009.2000-2007年夏季青藏高原低涡切变线观测事实分析[J].高原气象, 28(3): 549-555.
[11]He Guangbi, Gao Wenliang, Tu Nini.2009.The observational analysis of shear line and low vortex over the Tibetan Plateau in summer from 2000 to 2007[J].Plateau Meteor, 28(3): 549-555.
[12]何光碧, 师锐.2011.夏季青藏高原不同类型切变线的动力、热力特征分析[J].高原气象, 30(3): 568-575.
[13]He Guangbi, Shi Rui.2011.Study on dynamic and thermal characteristics of different shear lines over Tibetan in summer[J].Plateau Meteor, 30(3): 568-575.
[14]何光碧, 师锐.2014.三次高原切变线过程演变特征及其对降水的影响[J].高原气象, 33(3): 615-625.
[15]He Guangbi, Shi Rui.2014.Analysis on evolution characteristics of three Plateau shearlines and their effect on precipitation[J].Plateau Meteor, 33(3): 615-625.DOI: 10.7522/j.issn.1000-0534.2013.00023.
[16]何光碧, 屠妮妮, 张利红, 等.2013.青藏高原东侧一次低涡暴雨过程地形影响的数值试验[J].高原气象, 32(6): 1546-1556.
[17]He Guangbi, Tu Nini, Zhang Lihong, et al.2013.Numerical experiment of terrain effect of vortex rainstorm process on east side of Qinghai-Xizang Plateau[J].Plateau Meteor, 32(6): 1546-1556.DOI: 10.7522/j.issn.1000-0534.2012.00150.
[18]黄楚惠, 李国平.2009.基于螺旋度和非地转湿Q矢量的一次东移高原低涡强降水过程分析[J].高原气象, 28(2): 319-326.
[19]Huang Chuhui, Li Guoping.2009.A case study of Plateau vortex moving east ward with heavy rainfalls based on helicity and non-Geostrophic wet Q-vector[J].Plateau Meteor, 28(2): 319-326.
[20]李川, 陈静, 何光碧.2006.青藏高原东侧陡峭地形对一次强降水天气过程的影响[J].高原气象, 25(3): 442-450.
[21]Li Chuan, Chen Jing, He Guangbi.2006.Impact of the steep terrain of eastern Qinghai-Xizang Plateau on the genesis and development of extreme heavy rainfall event[J].Plateau Meteor, 25(3): 442-450.
[22]刘海明, 巨克英, 张青梅, 等.2000.Q矢量及水汽通量散度在青海省1999年8月4日大降水中的释用[J].青海气象, 42(3): 2-7.
[23]Liu Haiming, Ju Keying, Zhang Qingmei, et al.2000.The interpretation of Q vector and moisture flux divergence on heavy rainfall in Qinghai Province on August 4, 1999[J].Qinghai Meteor, 42(3): 2-7.
[24]彭广, 李跃清, 郁淑华, 等.2015.青藏高原低涡切变线年鉴 (2013)[M].北京:科学出版社, 194-198.
[25]Peng Guang, Li Yueqing, Yu Shuhua, et al.2015.The Tibetan Plateau vortex and shear line yearbook (2013)[M].Beijing: Science Press, 194-198.
[26]王伏村, 许东蓓, 修韶宇, 等.2014.一次西北地区东部大暴雨的物理机制分析[J].高原气象, 33(6): 1501-1513.
[27]Wang Fucun, Xu Dongbei, Xiu Shaoyu, et al.2014.Mechanism analysis of a rainstorm occurred in the eastern part of Northwest China[J].Plateau Meteor, 33(6): 1501-1513.DOI: 10.7522/j.issn.1000-0534.2013.00104.
[28]王婧羽, 崔春光, 王晓芳, 等.2014.2012年7月21日北京特大暴雨过程的水汽输送特征[J].气象, 40(2): 133-145.
[29]Wang Jingyu, Cui Chunguang, Wang Xiaofang, et al.2014.Analysis on water vapor transport and budget of the severe torrential rain over Beijing region on 21 July 2012[J].Meteor, 40(2): 133-145.
[30]文宝安.1980.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, 31(6): 34-36.
[31]Wen Baoan.1980.Physical quantity calculation and application to analysis and forecast of the torrential rain—moisture flux and moisture flux divergence[J].Meteor, 31(6): 34-36.
[32]肖递祥, 屠妮妮, 祁生秀.2015.龙门山沿线暴雨过程的诊断分析及数值试验[J].高原气象, 34(1): 113-123.
[33]Xiao Dixiang, Tu Nini, Qi Shengxiu.2015.Diagnosis analysis and numerical experiments of a rainstorm case along Longmen Mountain[J].Plateau Meteor, 34(1): 113-123.DOI: 10.7522/j.issn.1000-0534.2013.00112.
[34]颜琼丹, 蔡亲波.2006.非地转湿Q矢量在台风"云娜"暴雨过程中的分析应用[J].热带气象学报, 22(5): 505-509.
[35]Yan Qiongdan, Cai Qinbo.2006.Application of ageostrophic wet Q-vector analysis in torrential rain of typhoon "Rananim"[J].J Trop Meteor, 22(5): 505-509.
[36]杨晓霞, 沈桐立, 刘还珠, 等.2006.非地转湿Q矢量分解在暴雨分析中的应用[J].高原气象, 25(3): 464-475.
[37]Yang Xiaoxia, Shen Tongli, Liu Huanzhu, et al.2006.Application of the wet Q-vector partitioning method to the diagnosis of the heavy rainstorm[J].Plateau Meteor, 25(3): 464-475.
[38]姚秀萍, 孙建元, 康岚, 等.2014.高原切变线研究的若干进展[J].高原气象, 33(1): 294-300.
[39]Yao Xiuping, Sun Jianyuan, Kang Lan, et al.2014.Advances on research of shear convergence line over Qinghai-Xizang Plateau[J].Plateau Meteor, 33(1): 294-300.DOI: 10.7522/j.issn.1000-0534.2013.00164.
[40]姚秀萍, 于玉斌.2000.非地转湿Q矢量及其在华北特大台风暴雨中的应用[J].气象学报, 58(4): 436-446.
[41]Yao Xiuping, Yu Yubin.2000.Non-geostrophic wet Q-vector analysis and its application to typhoon torrential rain[J].Acta Meteor Sinica, 58(4): 436-446.
[42]岳彩军, 李佳, 陈佩燕, 等.2013.湿Q矢量释用技术的改进研究[J].高原气象, 32(6): 1617-1625.
[43]Yue Caijun, Li Jia, Chen Peiyan, et al.2013.Study on improvement of moist Q-vector interpretation technique[J].Plateau Meteor, 32(6): 1617-1625.DOI: 10.7522/j.issn.1000-0534.2012.00155.
[44]岳彩军, 寿绍文, 董美莹, 等.2003.定量分析几种Q矢量[J].应用气象学报, 14(1): 209-213.
[45]Yue Caijun, Shou Shaowen, Dong Meiying, et al.2003.Quantitative analysis of several Q-vectors[J].Appl Meter Sci, 14(1): 209-213.
[46]岳彩军, 寿亦萱, 寿绍文, 等.2008.各非地转Q矢量之间的定量比较[J].高原气象, 27(3): 608-618.
[47]Yue Caijun, Shou Yixuan, Shou Shaowen, et al.2008.The quantitative comparisons among ageostrophic Q-vectors[J].Plateau Meteor, 27(3): 608-618.

Options

PDF (20987)

摘要页面

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献