ENGLISH

A DYNAMIC MODE FOR RELATIONSHIP

Source:

BETWEEN FLOOD/DROUGHT IN YANGTZE RIVER VALLEY AND LOW FREQUENCY WAVE

ORIGINATED FROM TROPICAL SEA AREA

    MIAO Qiuju (苗秋菊), XU Xiangde (徐祥德), YAO Wenqing (姚文清)

        Chinese Academy of Meteorological Sciences, Beijing 100081, China

        and ZHANG Xuejin (张雪金)

        North Carolina State University, Raleigh, U.S.A.

        Received March 10, 2002; revised May 18, 2002

        ABSTRACT

        According to statistic analysis on sea surface temperature (SST) anomaly features in the North Pacific in winters and springs prior to the summer flood/ drought in the middle and lower reaches of the Yangtze River (hereafter referred to as MLRY), a strong signal SST key area that affects local flood/drought is put forward, that is the equatorial eastern Pacific. The response of general circulation in the Northern Hemisphere to SST anomaly in the key area is further investigated. The low frequency wave train structure of correlation between the eastern Pacific SST and the height at 500 hPa in the Northern Hemisphere is also studied, which reflects the dynamic features of teleresponse of local flood/drought at extratropics to tropical SST anomaly. Through introducing SST anomaly in the strong signal area in numerical experiments, the flood in Yangtze River Valley is successfully simulated and the similar wave train pattern in the flow field is obtained too. Altogether, the physical picture and dynamic mode of the flood in the Yangtze River Valley are described in this work.

        Key words: flood, tropical SST anomaly, wave train, teleconnection

        Editor-in-Chief: Zhou Xiuji (周秀骥)

        EDITORIAL COMMITTEE OF AMS

        Chairman

        Zhou Xiuji (周秀骥): CAMS

        ViceChairmen

        Ding Yihui (丁一汇): National Climate Center, Beijing 100081, China

        Ji Liren (纪立人)： IAP CAS

        Wang Shaowu (王绍武): DG PU Standing Members et al. 31 altogather.

        此外还聘请了一些国际知名的大气科学家为国外编委。

        Foreign Members

        Anthes, Richard A.: UCAR, Boulder, CO 80307 3000, USA

        Chameides, William L.: School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332 0340, USA

        Lau, William K. M.: NASA, Goddard Space Flight Center, Mail Code 913, Greenbelt, MD 20771, USA

        Liu Shaw C.: Aeronomy Laboratory NOAA/ERL, 325 Broadway, Boulder, CO 80303 3328, USA

        Longhetto, A.: Consiglio Nazionale delle Ricerche Istituto di Cosmo Geofisica, 10133 Torino, Italy

        Serafin, Robert J.: NCAR, Boulder, CO80307-3000, USA

        Tanaka, M.: Upper NCAR,　Boulder, CO 803073000, USA Atmosphere Research Laboratory, Faculty of Science Tohoku University, Sendai, Japan

        Wang Bin: Department of Meteorology, University of Hawaii at Manoa, Honolulu, HI 96822 USA

        Wang Wei-Chyung: Atmospheric Sciences Research Center, State University of New York at Albany, 100 Fuller Road, Albany, NY 12205, USA

        Yasunari T.: Institute of Geoscience, University of Tsukuba, Ibaraki 305, Japan

        Zhang Da-Lin: Dept. of Meteorology 2423 computer& Space Science Bldg Univ. of Maryland College Park, Maryland, 20742-2425, USA

        According to the statistics of nearly thousand of articles published in the past volumes, the percentage of every division of atmospheric sciences can be listed as follows:

        Synoptic Meteorology， 27%

        Analysis of Weather systems，Atmospheric circulation, monsoon and LFO， Tropical meteorology， Typhoon ， Tibetan plateau & polar meteorology， Satellite & Radar meteorology

        Climatology，22%

        Climatological statistics， ENSO & Air-Sea Interation and Climatic Teleconnection， Physical climatology & climate modeling ， Climate change & historical climatology，

        Dynamics & Thermodynamics of the Atmosphere， 18%

        Thermodynamics of the Atmosphere，Dynamics of the Atmosphere，Atmospheric nonlinear dynamics， Atmospheric waves

        Atmospheric Physics，15%

        Atmospheric probing & Equipment， Boundary layer meteorology，Cloud & precipitation physics，Radiation，Atmospheric electricity

        Weather Forecasting & Modification，10%

        Atmospheric modeling，General method & application of NWP，Atmospheric experiment， Weather forecasting using synoptic method, & statistical forecasting， Weather modification

        Atmospheric Chemistry，5%

        Applied Meteorology，3%

        Agricultural meteorology， Marine meteorology

        ACTA

        METEOROLOGICA

        SINICA

        ISSN 0894-0525

        Edited by Chinese Meteorological Society

        Published by Chinese Meteorological Press

        Quarterly publication, about 128 pages per issue.

        Volume number of 2002 is Vol.16, All back issues (Vol.1-15) can be obtained.

        Annual Subscription

        Vol.16, 2002 (4 issues) $300.00

        Order Form

        Acta Meteorologica Sinica

        (Vol.16, 2002)

        Please enter my subscription to Acta Meteorologica Sinica Vol. 16

        Please send Back Issue of Acta Meteorologica Sinica Vol. No.

        Please send me a free sample copy of Acta Meteorologica Sinica

        Qty. Amount (US$)

        Name/Company:

        Address:

        Signiture: Date:

        China Meteorological Press

        46 Zhongguancun Nandajie, Beijing 100081, P. R. China