Please wait a minute...
高级检索
高原气象  2018, Vol. 37 Issue (5): 1375-1387    DOI: 10.7522/j.issn.1000-0534.2018.00011
论文     
冬季1月昆明准静止锋进退及维持的结构特征
张亚男1, 段旭2
1. 中国民用航空西南地区空中交通管理局贵州分局, 贵州 贵阳 550012;
2. 云南省气象科学研究所, 云南 昆明 650034
Structural Characteristics of the Advance, Retreat and Maintenance of Kunming Quasi-Stationary Front in January
ZHANG Yanan1, DUAN Xu2
1. Guizhou Sub-bureau of Southwest Air Traffic Management Bureau of Civil Aviation of China, Guiyang 550012, Guizhou, China;
2. Meteorological Institute of Yunnan Province, Kunming 650034, Yunnan, China
 全文: PDF  HTML
摘要: 利用地面气象观测资料、ERA-Interim再分析数据以及DEM地形数据,使用合成分析方法,从大气环流场、锋面附近要素场及锋生函数诊断场探讨了昆明准静止锋在西进、东退及维持时的结构特征。结果表明,当锋后低层到地面等温线呈"V"型分布,锋后正的次级环流相对深厚,锋面易西进;当锋后低层呈较深厚的逆温层且锋后正次级环流较浅薄,锋面易东退;当逆温层仅限于低层而近地面为冷中心,锋面易维持。东西风风速零线西端在锋面左侧,锋面易西进,反之锋面易东退;零线的位置与锋面基本重合,锋面易维持。垂直运动倾斜项在锋面西进时105°E附近迎风坡出现强烈的锋消现象,锋面东退和维持时出现弱锋生现象。水平辐散项产生的强锋生区在锋面左侧时,指示锋面西进;强锋生区在锋面右侧,且锋生现象很弱时,指示锋面东退;锋面维持时,强锋生区与锋区基本重合。水平变形项中切变变形起主要的锋生作用,而由于冷气团受迎风坡影响,导致伸缩变形在104°E以东的锋后区域产生较强的锋生现象。
关键词: 昆明准静止锋合成分析锋区结构锋生函数    
Abstract: Based on the ground meteorological elements data, interim daily reanalysis data and DEM data, this paper discussed the structure of Kunming Quasi-Stationary Front (KQSF) when it moved westward, gone eastward and kept sustaining. The movements of KQSF are closely related to the weather of Yunnan, Guizhou and south Sichuan in winter, so it is important to study its frontal structure and shift mechanism. By using synthetic analysis and disusing the circulation features, meteorological factors and frontogenesis function terms, we can draw some mainly conclusions:When the isotherm between lower atmosphere and ground presents "V" distribution, and the frontal secondary circulation is relatively deep, the front is easy to move westward; when the lower atmosphere presents deep inversion layer, and the frontal secondary circulation is very thin, the front is tend to move eastward; when the inversion layer only exists in lower atmosphere, and there is a cold center in surface layer, the front tends to sustain. For the vertical structure of the u wind, when the border of east and west wind is on the left side of the front, the front tends to move westward, on the contrary it tends to go eastward; when the border is basically coincident with front, it's likely to sustain. When there exists continuous transmission of east wind behind of the front, undulating topography can change the vertical distribution of wind near ground, which leads to the multiple centers of rising and sinking. For the vertical motion tilting term, there is a strong phenomenon of frontolysis in the windward slope near 105°E when the font goes westward, and there is a weak phenomenon of frontogenesis when the font goes eastward or keeps still. For the horizontal divergence term, it is related to the gradient of equivalent potential temperature and horizontal divergence, and it contributes much to frontogenesis. Horizontal divergence term is predictable to front's movement, when the strong frontogenetical area is on the left side of front, the front tends to go westward; when the strong frontogenetical area is on the right side of the front, and the phenomenon of frontogenesis is weak, the front tends to go eastward; when the strong frontogenesis is basically coincident with frontal zone, the front tends to sustain. For the horizontal deformation term, it consists of tilting term and deformation term, and tilting term is more important to frontogenesis. For the expansion deformation term, there is a stronger phenomenon of frontolysis in the east of 104°E because of the interaction between cold air mass and windward slope.
Key words: Kunming quasi-stationary front    composite analysis    frontal structure    frontogenesis function
收稿日期: 2017-10-13 出版日期: 2018-10-19
:  P441  
基金资助: 国家自然科学基金项目(41365006,41665004)
通讯作者: 段旭(1960-),男,云南人,研究员,主要从事天气和数值预报研究.E-mail:ynmodx@sina.com     E-mail: ynmodx@sina.com
作者简介: 张亚男(1992-),女,重庆人,硕士研究生,主要从事天气研究.E-mail:ynu_zyn@163.com
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  
张亚男
段旭

引用本文:

张亚男, 段旭. 冬季1月昆明准静止锋进退及维持的结构特征[J]. 高原气象, 2018, 37(5): 1375-1387.

ZHANG Yanan, DUAN Xu. Structural Characteristics of the Advance, Retreat and Maintenance of Kunming Quasi-Stationary Front in January. Plateau Meteorology, 2018, 37(5): 1375-1387.

链接本文:

http://www.gyqx.ac.cn/CN/10.7522/j.issn.1000-0534.2018.00011        http://www.gyqx.ac.cn/CN/Y2018/V37/I5/1375

段旭, 李英, 孙晓东, 2002. 昆明准静止锋结构[J]. 高原气象, 21(2):205-209. Duan X, Li Y, Sun X D, 2002. The structure of Kunming quasi-stationary front[J]. Plateau Meteor, 21(2):205-209.
段旭, 段玮, 邢冬, 等, 2018. 冬春季昆明准静止锋与云贵高原地形的关系[J]. 高原气象, 37(1):137-147. Duan X, Duan W, Xing D, et al, 2018. The relationship between Kunming quasi-stationary front and Yunnan-Guizhou Plateau terrain[J]. Plateau Meteor, 37(1):137-147. DOI:10.7522/j. issn. 1000-0534.2017.00032.
段旭, 段玮, 邢冬, 2017a. 昆明准静止锋客观判识方法研究[J]. 气象学报, 75(5):811-822. Duan X, Duan W, Xing D, 2017a. Research of objective judgment method about Kunming quasi-stationary frontline[J]. Acta Meteor Sinica, 75(5):811-822.
段旭, 段玮, 王曼, 等, 2017b. 昆明准静止锋[M]. 北京:气象出版社, 134-167. Duan X, Duan W, Wang M, et al, 2017b. Kunming quasi-stationary front[M]. Beijing:China Meteorological Press, 134-167.
杜小玲, 蓝伟, 2010. 两次滇黔准静止锋锋区结构的对比分析[J]. 高原气象, 29(5):1183-1195. Du X L, Lan W, 2010. Contrastive Analysis on frontal structure of quas-stationary front in two precipitation processes of Yunnan-Guizhou[J]. Plateau Meteor, 29(5):1183-1195.
杜正静, 丁治英, 张书余, 2007.2001年1月滇黔准静止锋在演变过程中的结构及大气环流特征分析[J]. 热带气象学报, 23(3):284-292. Du Z J, Ding Z Y, Zhang S Y, 2007. Analysis of atmospheric circulation and structure of Yunnan-Guizhou quasi-stationary front during its evolutiont[J]. J Trop Meteor, 23(3):284-292.
杜正静, 何玉龙, 熊方, 等, 2015. 滇黔准静止锋诱发贵州春季暴雨的锋生机制分析[J]. 高原气象, 34(2):357-367. Du Z J, He Y L, Xiong F, et al, 2015. Analysis on the frontogenesis mechanism of Dian-Qian quasi-stationary front inducing spring rainstorm in Guizhou province[J]. Plateau Meteor, 34(2):357-367. DOI:10.7522/j. issn. 1000-0534.2013.00176.
李兆慧, 王东海, 王建捷, 等, 2011. 一次暴雪过程的锋生函数和急流-锋面次级环流分析[J]. 高原气象, 30(6):1505-1515. Li Z H, Wang D H, Wang J J, et al, 2011. Analysis on frontogenesis function and jet-front secondary circulation in a snowstorm process[J]. Plateau Meteor, 30(6):1505-1515.
许美玲, 段旭, 杞明辉, 等, 2011. 云南省天气预报员手册[M]. 北京:气象出版社, 10-16. Xu M L, Duan X, Qi M H, et al, 2011. Weather forecast manual of Yunnan province[M]. Beijing:China Meteorological Press, 10-16.
杨贵名, 毛冬艳, 孔期, 2009. "低温雨雪冰冻"天气过程锋区特征分析[J]. 气象学报, 67(4):652-665. Yang G M, Mao D Y, Kong Q, 2009. Analysis of the frontal characteristics of the cryogenic freezing rain and snow weather[J]. Acta Meteor Sinica, 67(4):652-665.
尤红, 周泓, 杨红, 等, 2013. 云南倒春寒天气过程的分析研究[J]. 气象, 36(6):738-748. You H, Zhou H, Yang H, et al, 2013. Analysis on the late spring coldness processes in Yunnan[J]. Meteor Mon, 36(6):738-748.
朱乾根, 林锦瑞, 寿绍文, 等, 2007. 天气学原理和方法[M]. 北京:气象出版社, 95-106. Zhu Q G, Lin J R, Shou S W, et al, 2007. Principles and methods of synoptic meteorology[M]. Beijing:China Meteorological Press, 95-106.
张腾飞, 鲁亚斌, 张杰, 等, 2006. 一次低纬高原地区大到暴雪天气过程的诊断分析[J]. 高原气象, 25(4):696-703. Zhang T F, Lu Y B, Zhang J, et al, 2006. Diagnostic analysis of a heavy snowstorm processe in lower latitude plateau of China[J]. Plateau Meteor, 25(4):696-703.
张精华, 张万诚, 郑建萌, 等, 2016.1970-2009年冬季昆明准静止锋的变化特征及其影响分析[J]. 高原气象, 35(5):1298-1306. Zhang J H, Zhang W C, Zheng J M, et al, 2016. Variation of Kunming quasi-stationary front and its effect analysis in winter during 1970-2009[J]. Plateau Meteor, 35(5):1298-1306. DOI:10.7522/j. issn. 1000-0534.2015.00042.
[1] 段旭, 段玮, 邢冬, 张亚男. 冬春季昆明准静止锋与云贵高原地形的关系[J]. 高原气象, 2018, 37(1): 137-147.
[2] 刘晶, 李娜, 陈春艳. 新疆北部一次暖区暴雪过程锋面结构及中尺度云团分析[J]. 高原气象, 2018, 37(1): 158-166.
[3] 王宗敏, 李江波, 王福侠, 林朝旭. 东北冷涡暴雨的特点及其非对称结构特征[J]. 高原气象, 2015, 34(6): 1721-1731.
[4] 林志强. 南支槽的客观识别方法及其气候特征[J]. 高原气象, 2015, 34(3): 684-689.
[5] 刘勇, 王楠, 刘黎平. 陕西两次阵风锋的多普勒雷达和自动气象站资料分析[J]. 高原气象, 2007, 26(2): 380-387.
[6] 吕雅琼, 巩远发. 2001及2003年夏季青藏高原及附近大气热源(汇)的变化特征[J]. 高原气象, 2006, 25(2): 195-202.
[7] 姚秀萍, 刘还珠, 赵声蓉. 利用TBB资料对西太平洋副热带高压特征的分析和描述[J]. 高原气象, 2005, 24(2): 143-151.
[8] 蒋后硕, 吕克利 . 高、低空急流中的锢囚锋环流 [J]. 高原气象, 2000, 19(3): 265-276.
[9] 蒋后硕, 吕克利. 切变气流中地形强迫激发的非线性长波[J]. 高原气象, 1998, 17(3): 231-244.
[10] 杨洋, 俞佚名. 一次西南静止锋的准地转锋生函数分析[J]. 高原气象, 1995, 14(3): 365-372.