全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
大气科学  2006 

长江中下游夏季旱涝并存及其异常年海气特征分析

DOI: 10.3878/j.issn.1006-9895.2006.04.03

Keywords: 长江中下游,旱涝并存,海气背景

Full-Text   Cite this paper   Add to My Lib

Abstract:

利用国家气候中心提供的1957~2000年中国720站夏季(5~8月)逐日降水资料,对长江中下游地区夏季旱涝并存现象进行研究,并定义了一个季时间尺度的旱涝并存指数(IDFC),再结合NCEP/NCAR的500hPa高度场、850hPa风场等再分析资料以及Reynolds海温资料,对该地区旱涝并存异常年的海气背景特征进行了统计分析.结果表明:近50年长江中下游夏季旱涝并存异常的发生频率呈现上升趋势;夏季旱涝并存异常年,西太平洋副高空间活动范围较大,同期东亚夏季风偏弱;在其前期6个月中,阿拉伯海、孟加拉湾和中国南海海温显著偏高,另外赤道东太平洋海温呈现上升趋势,对应着ElNino的成熟阶段或发展阶段.所有这些为长江中下游夏季旱涝并存现象的预测,提供了有参考意义的前兆信号.

References

[1]  竺可祯.东南季风与中国之雨量.地理学报,1934,1(1):1~27Zhu Kezheng.Southeastern monsoon and precipitation in China.Acta Geographica Sinica (in Chinese),1934,1 (1):1~27
[2]  涂长望,黄士松.中国夏季风之进退.气象学报,1944,18:1~20Tu Changwang,Huang Shisong.The advance and withdraw of Chinese summer monsoon.Acta Meteorologica Sinica (in Chinese),1944,18:1~20
[3]  陶诗言,徐淑英.夏季江淮流域持久性旱涝现象的环流特征.气象学报,1962,32:1~10Tao Shiyan,Xu Shuying.Some aspects of the circulation during the periods of the persistent drought and flood in Yangtze River and Huaihe River valleys in summer.Acta Meteorologica Sinica (in Chinese),1962,32:1~10
[4]  吴国雄,刘还珠.降水对热带海表温度异常的邻域响应Ⅰ.数值模拟.大气科学,1995,19(4):422~434Wu Guoxiong,Liu Huanzhu.Neighborhood response of rainfall to tropical sea surface temperature anomalies,Part Ⅰ.Numerical experiment.Chinese Journal of Atmospheric Sciences (Scientia Atmospherica Sinica) (in Chinese),1995,19(4):422~434
[5]  张琼,刘平,吴国雄.印度洋和南海海温与长江中下游旱涝.大气科学,2003,27(6):992~1006Zhang Qiong,Liu Ping,Wu Guoxiong.The relationship between the flood and drought over the lower reach of the Yangtze River valley and the SST over the Indian Ocean and the South China Sea.Chinese Journal of Atmospheric Sciences (in Chinese),2003,27 (6):992~1006
[6]  黄荣辉,孙凤英.热带西太平洋暖池的热状态及其上空的对流活动对东亚夏季气候异常的影响.大气科学,1994,18(2):141~151Huang Ronghui,Sun Fengying.Impacts of the thermal state and the convective activities in the tropical western warm pool on the summer climate anomalies in East Asia.Chinese Journal of Atmospheric Sciences (Scientia Atmospherica Sinica) (in Chinese),1994,18 (2):141~151
[7]  He Jinhai,Zhou Bing,Wen Min,et al.Vertical circulation structure,interannual variation features and variation mechanism of western Pacific subtropical high.Adv.Atmos.Sci.,2001,18 (4):497~510
[8]  Ting M F,Wang H.Summer time U.S.precipitation variability and its relation to Pacific sea surface temperature.J.Climate,1997,10:1853~1873
[9]  陈隆勋,朱乾根,罗会邦,等.东亚季风.北京:气象出版社,1991.362ppChen Longxun,Zhu Qiangen,Luo Huibang,et al.East-Asian Monsoon (in Chinese).Beijing:China Meteorological Press,1991.362pp

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133