ENGLISH

NUMERICAL SIMULATIONS AND DOPPLER RADAR DATA ANALYSIS OF A HAIL PROCESS IN HUAIHE RIVER BASIN

Source:

     LI Bai (李柏),

        Nanjing Institute of Meteorology, Nanjing 210044

        XU Xiaofeng (许小峰)

        China Meteorological Administration, Beijing 100081

        and ZHOU Kun (周昆)

        Meteorological Observatory of Anhui Province, Hefei 230061

        Received March 20, 2002; revised May 20, 2002

        ABSTRACT

        A hail process in Huaihe River Basin observed by CINRAD Doppler radar on 12 May 2000 has been simulated by using nonhydrostatic mesoscale numerical model MM5. The simulated wind field is analyzed and compared with Doppler radar wind data, both of them show that there was a mesoβ cyclone around the hail region. Results show that this mesoβ cyclone existed below 3 km in the troposphere and its cyclonic circulation was very obvious below 1 km. The temperature and moisture fields from the simulation are also analyzed. Furthermore, the stormrelative environmental helicity and CAPE (convective available potential energy) are discussed.

        Key words: hail process, numerical simulations, radar observation, mesoβcyclone

        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:

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        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

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