| Correlations of the Evolution of a CCOPE Squall Line with Surface Thermodynamics and Kinematic Fields |
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| 作者姓名： | Xu Yumao J.C. Fankhauser |
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| 作者单位： | Department of Atmospheric Sciences，Nanjing University，Nanjing，National Center Atmospheric Research P.O. Box 3000，Boulder，Colorado 80307 U.S.A. |
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| 摘 要： | A midlatitude squall line passed over the array of the Cooperative Convective Precipitation Experiment (CCOPE) on 1 August 1981. The structure and evolution of the squall line, and the correlations of the storm with sur-face thermodynamics and kinematic fields are investigated, mainly by using radar and surface mesonet data in CCOPE. The storm-wide precipitation efficiency is also estimated.The squall line was of an obvious process of metabolism. Thirty-four cells formed successively in front of the primary storm und eventually merged into it during the period 1700-2010 MDT. The newest cells formed near sur-face equivalent potential temperature maxima, and near surface moisture flux convergence zones or / and the “tem-perature break lines”. The thunderstorm rainfall, with the precipitation efficiency of 54%, lags 25-30 min behind the moisture flux convergence on the average.
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Correlations of the Evolution of a CCOPE Squall Line with Surface Thermodynamics and Kinematic Fields |
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| Xu Yumao,J.C. Fankhauser.Correlations of the Evolution of a CCOPE Squall Line with Surface Thermodynamics and Kinematic Fields[J].Advances in Atmospheric Sciences,1989,6(1):99-112. |
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| Authors: | Xu Yumao and JC Fankhauser |
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| Institution: | Department of Atmospheric Sciences, Nanjing University, Nanjing,National Center for Atmospheric Research P.O. Box 3000, Boulder, Colorado 80307 U.S.A. |
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