MJO对我国东部春季降水影响的分析

白旭旭; 李崇银; 谭言科; 关志佳

doi:10.3969/j.issn.1004-4965.2011.06.004

MJO对我国东部春季降水影响的分析

doi: 10.3969/j.issn.1004-4965.2011.06.004

1.
解放军理工大学气象学院, 江苏南京 211101; 2. 解放军第61741部队, 北京 100094
2.
解放军理工大学气象学院, 江苏南京 211101; 2. 中国科学院大气物理研究所LASG, 北京 100029
3.
解放军理工大学气象学院, 江苏南京 211101

基金项目: 国家自然科学基金(U0833602)资助

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出版历程
- 收稿日期: 2010-07-30
- 修回日期: 2010-11-16

ANALYSIS OF THE MADDEN-JULIAN OSCILLATION IMPACTS ON THE SPRING RAINFALL IN EAST CHINA

1.
Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China; 2. 61741 Troops of PLA, Beijing 100094, China
2.
Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China; 2. Institute of Atmospheric Physics, LASG, Beijing 100029, China
3.
Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, China

摘要

摘要: 利用澳大利亚气象局的MJO(Madden-Julian Oscillation)指数,通过位相合成及对比分析研究了MJO对我国东部春季降水的影响。研究表明,当MJO传播至中东印度洋时,我国长江中下游地区的春季降水为正异常,当其进一步东传至中南半岛-印尼群岛一带时,我国华南地区的春季降水为正异常,而在其他活动阶段不利于我国东部的春季降水。对比分析表明,MJO的活动主要通过引起大尺度环流异常、对流层中低层涡度及水汽输送的异常,进而对我国东部春季降水产生明显的影响。
- MJO活动 /
- 中国东部春季降水 /
- 环流异常 /
- 水汽通量散度异常
Abstract: Phase composite analyses have been conducted to investigate the possible effects of the Madden-Julian oscillation (MJO) on the spring rainfall anomalies in East China by using the Real-time Multivariate MJO (RMM) index from Australian Meterological Bureau. The results show that the rainfall anomalies in the mid-lower Valley of Yangtze River are positive when the MJO shifts eastward to the mid-eastern Indian Ocean, and the rainfall anomalies in southern China are positive when the MJO moves further eastward to the vicinity of Indo-China Peninsula and Indonesia, whereas spring rainfall anomalies in East China are negative in the other MJO episodes. The MJO impacts on the precipitation in East China result from the changes in large-scale atmospheric circulation together with the vorticity and vapor transportation at mid-lower levels in the troposphere.
- MJO activity /
- spring precipitation in East China /
- atmospheric circulation anomalies /
- vapor flux divergence anomalies

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参考文献(29)

[1]	MADDEN R A, JULIAN P R. Detection of a 40～50 day oscillation in the zonal wind in the tropical Pacific[J]. J Atmos Sci, 1971, 28(5): 702-708.
[2]	YASUNARI T. A quasi-staionay appearance of 30～40 day peried in the cloudiness fluctuations during the summer monsoon over India[J].J Meteor Soc Japan, 1980, 58: 225-229.
[3]	KRISHNAMURTI T N, SUBRAHMANYAM D. The 30～50 day mode at 850 mb during MONEX[J]. J Atoms Sci, 1982, 39(9): 2 088-2 095.
[4]	LORENC A C. The evolution of planetary scale 200 mb divergence flow during the FGGE year[J]. Quar J Roy Meteor Soc, 1984, 110(464):427-429.
[5]	李崇银. 大气低频振荡[M]. 北京:气象出版社,1993.
[6]	穆明权,李崇银. 1998年南海夏季风的爆发与大气季节内振荡的活动[J]. 气候与环境研究, 2000, 5(4): 375-387.
[7]	林爱兰,梁建茵,李春辉. 南海夏季风对流季节内振荡的频谱变化特征[J]. 热带气象学报,2005,21(5): 542-548.
[8]	LAWRENCE D M, WEBSTER P J. The boreal summer intraseasonal oscillation: Relationship between northward and eastward movement of convection[J]. J Atmos Sci, 2002, 59(9): 1 593-1 606.
[9]	HENDEON H H, LIEBMANN B. The intraseasonal (30～50 day) oscillation of the Australian summer monsoon[J]. J Atoms Sci, 1990, 47(24):2909-2924.
[10]	HIGGINS R W, SHI W. Intercomparison of the principal modes of interannual and intraseasonal variability of the North American Monsoon System[J]. J Climate, 2001, 14(3): 403-417.
[11]	JIN F, HOSKINS B J. The direct response to tropical heating in a baroclinic atmosphere[J]. J Atmos Sci, 1995, 52(2): 307-319.
[12]	BLADE I, HARTMANN D L. The linear and nonlinear extratropical response of the atmosphere to tropical intraseasonal heating[J]. J Atmos Sci, 1995, 52(24): 4 448-4 471.
[13]	贾小龙, 李崇银. 热带大气季节内振荡的季节性特征及其在SAMIL-R42L9中的表现[J]. 热带气象学报, 2007, 23(3):217-228.
[14]	李崇银. 江淮流域汛期降水与热带大气季节内振荡的活动[M]//灾害性气候的过程及诊断. 北京:气象出版社,1996: 72-76.
[15]	ZHANG L N, WANG B Z, ZENG C Q. Impacts of the Madden-Julian Oscillation on Summer Rainfall in Southeast China[J]. J Climate, 2009, 22(2): 201-216.
[16]	吴俊杰, 袁卓建, 钱钰坤, 等. 热带季节内振荡对2008年初南方持续性冰冻雨雪天气的影响[J]. 热带气象学报, 2009, 25(增刊):103-112.
[17]	BARLOW M, WHEELER M, LUYON B, et al. Modulation of daily precipitation over southwest Asia by the Madden-Julian oscillation[J]. Mon Wea Rev, 2005, 133(12): 3579-3594.
[18]	JONES C. Occurrence of extreme precipitation events in California and relationships with the Madden-Julian oscillation[J]. J Climate, 2000, 13(20): 3 576-3 587.
[19]	BOND N A, VECCHI G A. The influence of the Madden-Julian oscillation on precipitation in Oregon and Washington[J]. Weather Forecast, 2003,18: 600-613.
[20]	WHEELER M C, HENDON H H, Cleland S, et al. Impacts of the Madden-Julian Oscillation on Australian Rainfall and circulation[J]. J Climate,2009, 22(6): 1 482-1 498.
[21]	张洁,周天军,宇如聪,等. 中国春季典型降水异常及相联系的大气水汽输送[J]. 大气科学, 2009, 33(1): 121-134
[22]	鹿世瑾. 华南气候[M]. 北京:气象出版社,1990.
[23]	LI Chong-yin, LI Gui-long. Evolution of intraseasonal oscillation over the tropical western Pacific/South China Sea and its effect to the summer precipitation in Southern China[J]. Adv Atmos Sci, 1997, 14: 246-254.
[24]	信飞,肖子牛,李泽春. 1997年华南汛期降水异常与大气低频振荡的关系[J]. 气象,2007,33(12):23-30.
[25]	孙丹,琚建华,吕俊梅. 2003年东亚夏季风季节内振荡对我国东部地区降水的影响[J]. 热带气象学报,2008,24(6):641-648.
[26]	YANG Hui, LI Chong-yin. The Relation between Atmospheric Interaseaseonal Oscillation and Summer Severe Flood and Drought in the Changjiang-Huaihe River Basin[J]. Adv Atmos Sci, 2003, 20: 540-553.
[27]	琚建华, 赵尔旭. 东亚夏季风区的低频振荡对长江中下游旱涝的影响[J]. 热带气象学报,2005,21(2):163-171.
[28]	WHEELER M C, HENDON H H. An all-season real-time multivariate MJO Index: Development of an index for monitoring and prediction[J]. Mon Wea Rev, 2004, 132(8): 1 917-1 932.
[29]	MADDEN R A, JULIAN P R. Observation of 40～50-Day Tropical Oscillation-A Review[J]. Mon Wea Rev, 1994, 122(5): 814-837.