划分大型天气过程的一个客观标志
AN OBJECTIVE CRITERION FOR DIVIDING THE MACROSYNOPTICAL PROCESSES
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摘要: 本文提出了一个测度逐日(或周期间)行星锋带演变的简便参数--变化指数。这个指数不但能用以描绘周期内部变化的稳定度,而且还很好指示周期交替的日期,大多数比经验方法更有代表性。划分的结果表明在亚洲地区存在包括2-4个基本周期的综合周期,在一季内基本周期的长度并不是准常数,但相邻周期的长度差一般不超过1天。Abstract: In this paper a convenient parameter is presented to measure the daily(or from one period to the other) evolution of planetary frontal zone-variation index. This index not only describes the stability of variation within a natural synoptical period(or the elementary period), but also shows well the date of their shift. It is more effective than the empirical methods. The result shows the existence of complex period, each ineluding 2-4 elementary periods. Within a season the length of the elementary period is not quasi-constant. However, the length difference between two neighboring periods in most cases does not exceed one day.
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张家诚,F.鲍尔学派的长期预报方法,气象学若干间题的进展,科学出版社,1963年. Хромов,С.П.,Основы синоптической метеорологии,Гидрометеоиздат,1948.
中国科学院中央气象局联合天气分析预报中心中期预报组,我国东部夏季降水中期预报的初步研究,科学出版社,1956年. Кац,А.Л.,Предсказание погоды на 3-7 дней,Гидрометеоиздат.л,1958.
Пагава.С.Т.,Метеоролсця ц Гцбролосця,No 1,1963.
Храбров,Ю Б.,Методика составления прогнозов н 3-7 дней.Гидрометеоиздатr,1959.
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