Wei Jie, Zhang Qingyun, Tao Shiyan. Characteristics of atmospheric circulation anomalies during persistent droughts in North China for last two decades. J Appl Meteor Sci, 2003, 14(2): 140-151.
Citation: Wei Jie, Zhang Qingyun, Tao Shiyan. Characteristics of atmospheric circulation anomalies during persistent droughts in North China for last two decades. J Appl Meteor Sci, 2003, 14(2): 140-151.

CHARACTERISTICS OF ATMOSPHERIC CIRCULATION ANOMALIES DURING PERSISTENT DROUGHTS IN NORTH CHINA FOR LAST TWO DECADES

  • Received Date: 2002-01-08
  • Rev Recd Date: 2002-05-27
  • Publish Date: 2003-04-30
  • The persistent droughts during the last two decades in North China are studied.The main results are as follows :(1) The Palmer Drought Severity Index (PDSI) shows that there is inter-annual variation in droughts in North China.The inter-decadal variation is even more remarkable.Before the mid-1970s, there was wetsummer climate, while since 1970, there were more drought years in North China.Moreover, the most severe droughts happened after the 1980s.(2) Summer droughts in North China are the consequence of persistent anomalous circulation over the Eurasia.The main features of the anomalous circulation include that there is height anomaly in the region of 55°to 65°N, 60°to 135°E and that there was EU teleconnection and it is the main type of atmospheric circulation anomalies that causes the persistent summer droughts in North China.(3) During the summer drought years, there is continuity in the distribution of the 500 hPa height anomaly field from winter to summer.(4) The anomalies of the general atmospheric circulation during droughts in North China are not local phenomena, but the responses to the Northern Hemisphere general atmospheric circulation anomaly.
  • [1]
    黄荣辉, 徐予红, 周连童.我国夏季降水的年代际变化及华北干旱化趋势.高原气象, 1999, 18(4):465-475. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX199904000.htm
    [2]
    张庆云.1880年以来华北降水及水资源的变化.高原气象, 1999, 18(4):486-495. http://www.cnki.com.cn/Article/CJFDTOTAL-GYQX199904002.htm
    [3]
    叶笃正, 黄荣辉, 等.长江黄河流域旱涝规律和成因研究.山东:山东科学技术出版社, 1996.
    [4]
    魏凤英, 曹鸿兴.华北干旱异常的地域特征.应用气象学报, 1998, 9(2):205-217. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=19980228&flag=1
    [5]
    叶笃正, 黄荣辉主编.旱涝气候研究进展.北京:气象出版社, 1990.
    [6]
    严中伟.华北降水年代际振荡及其与全球温度变化的联系.应用气象学报, 1999, 10(增刊):16-22. http://www.cnki.com.cn/Article/CJFDTOTAL-YYQX9S1.002.htm
    [7]
    安顺清, 邢久星.帕尔默旱度模式的修正.气象科学研究院院刊, 1986, 1(1):75-82. http://www.cnki.com.cn/Article/CJFDTOTAL-SWZZ606.004.htm
    [8]
    Palmer W C.Meteorological Drought.U.S Weather Bureau.Res.Pap, 1965, (45):1-58. https://www.ncdc.noaa.gov/temp-and-precip/drought/docs/palmer.pdf
    [9]
    Barnston A G, Livezey R E.C lassification, seasonality and persistence of low-frequency atmospheric circulation pattern.Mon.Wea.Rev., 1987, 115 :1083-1126. doi:  10.1175/1520-0493(1987)115 & lt; 1083:CSAPOL & gt; 2.0.CO; 2
    [10]
    Wallace J M, Gutzler D S.Teleconnections in the geopotential height field during the Northern Hemisphere winter.Mon.Wea.Rev., 1981, 112 :2135-2147.
    [11]
    李金龙, 李志锦, 纪立人.北半球夏季环流持续性异常及其发展特征.大气科学, 1998, 22(1):57-68. http://www.cnki.com.cn/Article/CJFDTOTAL-DQXK801.007.htm
    [12]
    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 :1-10. http://www.cnki.com.cn/Article/CJFDTOTAL-QXXB196201000.htm
    [13]
    Jerome Namias.Some cause of United States drought.Journal of Climate and Applied Meteor, 1983, 22 :30-39.
    [14]
    Lau K M, Kim K M, Yang S.Dynamical and boundary forcing characteristics of regional components of the Asian summermonsoon.J.Climate, 2000, 13 :2461-2481. doi:  10.1175/1520-0442(2000)013 & lt; 2461:DABFCO & gt; 2.0.CO; 2
    [15]
    Chung-Kyu Park, S chubert S D.On the nature of the 1994 east Asian summer drought.J.Climate, 1997, 10 :1056-1069. doi:  10.1175/1520-0442(1997)010 & lt; 1056:OTNOTE & gt; 2.0.CO; 2
    [16]
    Wallace J M, Jing Q R.On the observed structure of the in terannual variability of the atmosphere/ocean climate system.Cattle H, Ed.Atmosphere and ocean variability.Quart.J.Roy.Meteor.Soc., 1987, 12 :17-43.
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    • Received : 2002-01-08
    • Accepted : 2002-05-27
    • Published : 2003-04-30

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