COMMON FEATURES OF SYNOPTIC SYSTEMS RELATED TO HEAVY RAINSTORMS IN THE MIDDLE CHANGJIANG RIVER BASIN DURING SUMMER

Xu Haiming; He Jinghai; Zhou Bing

Vol.12, NO.3, 2001

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Xu Haiming, He Jinghai, Zhou Bing. Common features of synoptic systems related to heavy rainstorms in the middle Changjiang River Basin during summer. J Appl Meteor Sci, 2001, 12(3): 317-326.

Citation:

Xu Haiming, He Jinghai, Zhou Bing. Common features of synoptic systems related to heavy rainstorms in the middle Changjiang River Basin during summer. J Appl Meteor Sci, 2001, 12(3): 317-326.

Xu Haiming, He Jinghai, Zhou Bing. Common features of synoptic systems related to heavy rainstorms in the middle Changjiang River Basin during summer. J Appl Meteor Sci, 2001, 12(3): 317-326.

Citation:

Xu Haiming, He Jinghai, Zhou Bing. Common features of synoptic systems related to heavy rainstorms in the middle Changjiang River Basin during summer. J Appl Meteor Sci, 2001, 12(3): 317-326.

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COMMON FEATURES OF SYNOPTIC SYSTEMS RELATED TO HEAVY RAINSTORMS IN THE MIDDLE CHANGJIANG RIVER BASIN DURING SUMMER

Nanjing Institute of Meteorology, Nanjing 210044

Received Date: 1999-12-03
Rev Recd Date: 2000-04-27
Publish Date: 2001-08-31

Abstract

Abstract

Through the composite analysis of eight heavy rainstorms in the middle changjiang River basin, revealed are the temporal features of the upper-troposphere jet and the low level SW jet and their interaction with the rainstorm development. The possible links between the westward migration of the western Pacific subtropical high and the eastward movement of the upper level jet anterior to the rainstorm onset are also discussed.
- Heavy rainstorm;
- Upper level jet;
- Low level jet;
- Subtropical high

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References(13)

Figures and Tables

图 1 1998年7日20~22日TBB沿30°N的时间-经度剖面图

(阴影区为TBB小于210 K, 等值线间隔:20 K)

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图 2 长江中游8次大暴雨发生时的TBB合成场分布

(阴影区为TBB小于240 K, 等值线间隔:5 K)

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图 3 长江中游大暴雨发生前后200 hPa高度场和急流轴的演变特征

(实线为等高线 (间隔为40 gpm); 浅阴影区为风速≥35 m/s; 深阴影区为风速≥40 m/s; 虚线为500 hPa上较强的上升、下沉运动区 (ω≤-0.10 Pa/s或ω≥0.05 Pa/s; 间隔:0.05))

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图 4 长江中游大暴雨发生前后850 hPa风场、高度场和温度场的演变特征

(浅阴影区为风速≥10 m/s, 深阴影区为风速≥12 m/s; 实线为等高线 (间隔为40 gpm), 虚线为等温线 (间隔为1 ℃)

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图 5 长江中游大暴雨发生前后850 hPa水汽通量的演变特征

(阴影区为水汽通量值≥14 g/(s·hPa·cm) 等值线间隔:2 g/(s·hPa·cm))

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图 6 长江中游8次大暴雨850 hPa高度合成场沿20°N的时间-经度剖面图

(间隔:5 gpm, 阴影区为位势高度大于5880 gpm)

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图 7 长江中游大暴雨发生前后500 hPa垂直运动场的演变特征

(等值线间隔:0.2, 单位:10^-1Pa/s; 阴影区为200 hPa急流轴, 浅阴影区为风速≥35 m/s, 深阴影区为风速≥40 m/s)

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表 1 长江中游地区8次大暴雨过程概况

References

[1]	陶诗言.中国之暴雨.北京:科学出版社, 1979.
[2]	丁一汇.1991年江淮流域持续性特大暴雨研究.北京:气象出版社, 1993.
[3]	丁一汇, 蔡则怡, 李吉顺.1975年8月上旬河南特大暴雨的研究.大气科学, 1978, 2(3):276~289. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK197804001.htm
[4]	丁一汇.暴雨和中尺度气象学问题.气象学报, 1994, 52(3):274~283. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB403.002.htm
[5]	Chen Q S. The instability of the gravity-inertia wave and its relation to low level jet and heavy rainfall. J. Meteor. Soc. Japan, 1982, 60:1041~1057.
[6]	孙淑清.梅雨锋中大振幅重力波的活动及其与环境场的关系.大气科学, 1990, 14(2):163~172. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK199002003.htm
[7]	赵明明.长江中上游地区暴雨气候图集.北京:气象出版社, 1995.
[8]	何金海, 朱乾根, Murakami M.TBB资料揭示的亚澳季风区季节转换特征.热带气象学报, 1996, 12(1):34~42. http://www.cnki.com.cn/Article/CJFDTOTAL-RDQX601.004.htm
[9]	江吉喜, 范梅珠, 郭炜, 等.一种利用卫星资料的实时降水量自动计算方法.气象科技, 1998, 28(4):39~45. http://www.cnki.com.cn/Article/CJFDTOTAL-QXKJ199804005.htm
[10]	陶祖钰, 黄伟.大暴雨过程中与急流相关气块的三维运动分析.气象学报, 1994, 52(3):359~367. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB403.010.htm
[11]	斯公望, 杜立群.南亚高压北缘的高空气流发散与梅雨锋暴雨发展的关系.杭州大学学报, 1987, 14(2):233~244. http://www.cnki.com.cn/Article/CJFDTOTAL-HZDX198702014.htm
[12]	Uccellini L W, Johnson D R. The coupling of upper and lower tropospheric jet streaks and implications for the development of severe convective storms. Mon. Wea. Rev., 1979, 107:682~703. doi: 10.1175/1520-0493(1979)107<0682:TCOUAL>2.0.CO;2
[13]	陈受钧.梅雨末期暴雨过程中高低空环流的耦合-数值实验.气象学报, 1989, 47(1):8~15. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB198901001.htm