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《Acta Meteorologica Sinica》 1958-02
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ON THE EQUIVALENCY OF FORMULATIONS OF WEATHER FORECASTING AS AN INITIAL VALUE PROBLEM AND AS AN“EVOLUTION”PROBLEM

KOO CHEN-CHAO (Institute of Geophysics and Meteorology,Academia Sinica)  
Weather forecasting is formulated as an initial value problem in the workof numerical forecasting,while in the routine forecasting in the conventionalway it is formulated as an ‘evolution’ problem of weather process,especiallythat on certain specific level.It is shown in this paper that for large-scalemotion these two different formulations are in fact equivalent under certaintrivial conditions.It is also pointed out that for large-scale motion the three-dimensional structure of the baroclinic atmosphere at certain moment isreflected in and could be reconstructed from the evolution of the contour andtemperature fields at certain level before and after that moment.
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