RELATIONSHIP BETWEEN PRECIPITATION IN MAY OVER YUNNAN AND THE CHANGES OF TROPICAL SEA SURFACE TEMPERATURE AND ASIA MONSOON

Yan Yan Hongming; Qi Minghui; Xiao Ziniu

Vol.12, NO.3, 2001

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2001 > 12(3): 368-376

Yan Hongming, Qi Minghui, Xiao Ziniu. Relationship between precipitation in May over Yunnan and the changes of tropical sea surface temperature and Asia monsoon. J Appl Meteor Sci, 2001, 12(3): 368-376.

Citation:

Yan Hongming, Qi Minghui, Xiao Ziniu. Relationship between precipitation in May over Yunnan and the changes of tropical sea surface temperature and Asia monsoon. J Appl Meteor Sci, 2001, 12(3): 368-376.

Citation:

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RELATIONSHIP BETWEEN PRECIPITATION IN MAY OVER YUNNAN AND THE CHANGES OF TROPICAL SEA SURFACE TEMPERATURE AND ASIA MONSOON

Meteorological Observatory of Yunnan Province, Kunming 650034

Received Date: 2000-01-17
Rev Recd Date: 2000-07-10
Publish Date: 2001-08-31

Abstract

Abstract

Based on correlation analysis and composition analysis, the relationship between precipitation in May over Yunnan and the changes of tropical sea surface temperature and tropical convection and Asia monsoon are studied. The results indicate that these large-scale climate variations strongly influence the precipitation in May over Yunnan and disclose the different patterns when precipitation increases and decreases. Because the changes have significant continuity, it may be useful in forecasting the precipitation in May in Yunnan. The relationship between monsoon index from April to June over South Asia and precipitation in May over Yunnan is also studied. The results show that precipitation decreases when the monsoon index is lower and precipitation increases when the monsoon index is higher.
- Precipitation in May over Yunnan;
- Convective activity;
- Monsoon index;

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References(8)

Figures and Tables

图 1 1951～1997年云南5月雨量距平百分率变化曲线

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图 2 云南5月雨量与热带海温距平相关分布 (a) 1～3月 (b) 4～5月 (阴影区为相关系数|r|≥0.2区域)

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图 3 云南5月雨量与OLR场的相关分布 (a) 1～3月 (b) 4～5月 (阴影区为相关系数|r|≥0.3区域)

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图 4 10°N～10°S范围200 hPa纬向风距平随时间-经度的变化

(a) 5月雨量偏少 (b) 5月雨量偏多

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图 5 850 hPa矢量风u, v距平合成场 (a) 5月雨量偏少 (b) 5月雨量偏多

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图 6 1979～1995年南亚季风指数的年际变化 (○4～5月上中旬, □5月下旬至6月)

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References

[1]	尤丽, 陈隆勋, 霍义强.云南雨季开始和大气环流季节变化的关系.云南气象文献, 1980, 136~162. http://www.cnki.com.cn/Article/CJFDTOTAL-YNDZ198101012.htm
[2]	王裁云.五月中低纬气压特征对云南五月雨量的影响及其预报.低纬高原天气, 1989, (2): 90~95.
[3]	王裁云.影响云南五月雨季开始期的天气成因分析.全国热带夏季风学术会议文集, 昆明:云南人民出版社, 1983.189~197.
[4]	严华生, 鲁亚斌, 尤卫红, 等.云南省五月雨量的天气气候成因探讨.应用气象气报, 1995, 6(1): 124~128. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX501.018.htm
[5]	Webster P J, Yang S.Monsoon and ENSO: selectively in teractive system.Quart.J.Roy.Meteor.Soc., 1992, 118: 667~926. http://cat.inist.fr/?aModele=afficheN&cpsidt=4321546
[6]	Li C, Yanai M.The onset and interannual variability of the Asian summer monsoon in relation to land-sea thermal contrast.J.Climate, 1996, 9: 358~375. doi: 10.1175/1520-0442(1996)009<0358:TOAIVO>2.0.CO;2
[7]	丁一汇, 李崇银.南海季风爆发和演变及其海洋的相互作用.北京:气象出版社, 1990.
[8]	赵振国.中国夏季旱涝及环境场.北京:气象出版社, 1999.32~36.