低纬高原干季降水与印缅槽的联系

doi:10.14088/j.cnki.issn0439-8114.2020.14.009

湖北农业科学 ›› 2020, Vol. 59 ›› Issue (14): 52-55.doi: 10.14088/j.cnki.issn0439-8114.2020.14.009

低纬高原干季降水与印缅槽的联系

邓剑波¹, 刘逵², 唐笑男³, 周碧¹

1.湖南省气象科学研究所/气象防灾减灾湖南省重点实验室,长沙 410118;
2.中国科学院大气物理研究所季风系统研究中心,北京 100029;
3.湖南省长沙市气象台,长沙 410205

收稿日期:2019-11-20 出版日期:2020-07-25 发布日期:2020-09-14
通讯作者: 刘逵（1988-）,男,湖北江陵人,博士,主要从事天气气候学研究,（电子信箱）570134771@qq.com。
作者简介:邓剑波（1985-）,男,湖南郴州人,工程师,博士,主要从事城市气候研究,（电话）18874274272（电子信箱）uranus.d@163.com
基金资助:
湖南省短平快课题（XQKJ16B017）

Connection between precipitation of low latitude plateau in dry season and Indian Burma trough

DENG Jian-bo¹, LIU Kui², TANG Xiao-nan³, ZHOU Bi¹

1. Institute of Hunan Meteorological Sciences/Key Laboratory of Hunan Disaster Prevention and Reduction, Changsha 410118,China;
2. Center for Monsoon System Research, Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;
3. Changsha Meteorological Observatory,Changsha 410205,China

Received:2019-11-20 Online:2020-07-25 Published:2020-09-14

摘要/Abstract

摘要： 基于1979—2012年GMAO/GES DISC 提供的1979—2012年大气环流月平均再分析资料和同期低纬高原及周边地区148个气象观测台站降水数据,运用相关分析、合成分析等统计方法对低纬高原干季降水与印缅槽的可能联系进行诊断分析。结果表明,印缅槽是影响低纬高原地区干季降水的重要因子。印缅槽槽前暖湿偏南风向低纬高原地区输送水汽,槽前的强烈上升运动使暖湿空气在上升过程中有利于发生CISK物理过程,在青藏高原偏北角干冷气流共同作用下,水汽凝结发生降水。印缅槽的发展形成了有利于大气斜压性不断在高原南北侧积累的正反馈机制以及不利于该系统斜压性向下游频散的经向环流形势,从而影响了低纬高原地区各气象要素场的配置,进而影响该地区的干季降水。

关键词: 印缅槽, 低纬高原, 干季降水, CISK机制

Abstract: Based on monthly atmospheric circulation reanalysis data from Global Modeling and Assimilation Office（GMAO）and Goddard Earth Sciences Data and Information Sciences Center（GES DISC） and precipitation of 148 weather stations in low latitude plateau region from 1979—2012, the relationship between the India Burma trough and the precipitation of low latitude plateau in dry season was investigated by using correlation and synthesis method. The results showed that the India Burma trough was an important factor affecting the precipitation of low latitude plateau in dry season. Water vapor was transported to the low latitude plateau region by southerly wind in front of the India Burma trough. Strong vertical ascending motion in front of the trough promoted the CISK physic process and caused rainfall when met the cold and dry northerlies in the southeast of the Tibet Plateau. The positive feedback mechanism of atmospheric barocline development and radial circulation which would hamper the dispersion process of atmospheric barocline were established when the trough grows strong. As a result, the configuration of the meteorological filed can be affected, which further influenced the precipitation of this region in dry season.

Key words: India Burma trough, low latitude plateau, dry season rainfall, CISK mechanism

中图分类号:

P426.6
P434

邓剑波, 刘逵, 唐笑男, 周碧. 低纬高原干季降水与印缅槽的联系[J]. 湖北农业科学, 2020, 59(14): 52-55.

DENG Jian-bo, LIU Kui, TANG Xiao-nan, ZHOU Bi. Connection between precipitation of low latitude plateau in dry season and Indian Burma trough[J]. HUBEI AGRICULTURAL SCIENCES, 2020, 59(14): 52-55.

参考文献

[1] CAO J,YAO P,WANG L,et al.Summer rainfall variability in low-latitude highlands of China and subtropical Indian Ocean dipole[J]. Journal of climate,2014,27(2):880-892.
[2] 秦剑,琚建华,解明恩,等. 低纬高原天气气候[M]. 北京:气象出版社,1997.210.
[3] 程建刚,晏红明,严华生,等. 云南重大气候灾害特征和成因分析[M]. 北京:气象出版社,2009.250.
[4] BARRIOPEDRO D,GOUVEIA C M,TRIGO R M,et al.The 2009/10 drought in China: Possible causes and impacts on vegetation[J]. Journal of hydrometeorology,2012,13(4):1251-1267.
[5] 杨亚力,杜岩,陈海山,等. ENSO事件对云南及临近地区春末初夏降水的影响[J]. 大气科学,2011,35(4):729-738.
[6] 杨鉴初,陶诗言,叶笃正,等. 西藏高原气象学[M]. 北京:科学出版社,1960.11-280.
[7] 索渺清,丁一汇. 冬半年副热带南支西风槽结构和演变特征研究[J]. 大气科学,2009,33(3):425-442.
[8] 秦剑,潘里娜,石鲁平,等. 南支槽与强冷空气结合对云南冬季天气的影响[J]. 气象,1991,17(3):39-43.
[9] 刘丽. 低纬高原冬季寒潮天气个例分析[J]. 气象,2001,27(9):53-55.
[10] 张腾飞,鲁亚斌,张杰,等. 2000年以来云南4次强降雪过程的对比分析[J]. 应用气象学报,2007,18(1):64-72.
[11] 鲁亚斌,解明恩,范菠,等. 春季高原东南角多雨中心的气候特征及水汽输送分析[J]. 高原气象, 2008,27(6):1189-1194.
[12] 王斌,李跃清. 2010年秋冬季西南地区严重干旱与南支槽关系分析[J]. 高原山地气象研究,2010,30(4):26-35.
[13] 郭荣芬,高安生,杨素雨. 低纬高原两次冬季南支槽强降水的对比分析[J]. 大气科学学报,2010,33(1):82-88.
[14] WANG T M,YANG S,WEN Z P,et al. Variations of the winter India-Burma trough and their links to climate anomalies over southern and eastern Asia[J]. Journal of geophysical research atmospheres,2011,116,D23118:1-13.
[15] LIU K,ZHA J L,YANG R W,et al. A new dynamical index for India-Burma trough[J/OL]. Advances in meteorology,2018,https://doi.org/10.1155/2018/5215093.

低纬高原干季降水与印缅槽的联系

Connection between precipitation of low latitude plateau in dry season and Indian Burma trough

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics

本文评价