ISSN 1000-0526
CN 11-2282/P

Volume 16,Issue 9,1990 Table of Contents

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  • 1  The mei-yu in Taiwan and its research
    1990, 16(9):3-7. DOI: 10.7519/j.issn.1000-0526.1990.9.001
    [Abstract](393) [HTML](0) [PDF 506.51 K](433)
    Mei-yu is one of the important weather phenomenon in Taiwan and has a large effect on the National economy and the people's livelihood. Therefore, it has attracted attention of the Chinese meteorologists.Comparing the characteristics of the mei-yu in Taiwan and in the mid-lower reaches of the Changjiang River, we found that there are different features between them besides the same characteristics.
    2  An index of precipitation, probability for dryness/wetness analysis
    1990, 16(9):8-12. DOI: 10.7519/j.issn.1000-0526.1990.9.002
    [Abstract](570) [HTML](0) [PDF 470.02 K](561)
    The index of precipitation probability and the grade of dryness/wet-ness based on Gamma distribution are presented in this paper.Sequential analysis on probability index of precipitation (in July,summer and in the year)and of the grade of dryness/wetness in Beijing area suggest that the series of the index and the grade of dryness/wetness based on Gamma distribution are better than the ones based on Normal distribution in describing the climatic states, The distribution of the former is closer to Normal than the latter.The results also show that Gamma distribution is more stable with time in presenting the precipitation.
    3  Assessment on validation of general circulation models (GCMs) in China
    1990, 16(9):13-17. DOI: 10.7519/j.issn.1000-0526.1990.09.003
    [Abstract](308) [HTML](0) [PDF 466.20 K](478)
    Assessment on the climatic changes in China as simulated by the general circulation models (GCMs) is presented in this paper.
    4  The acidity and chemical composition of showery rain over -Xisha Islands in dry season
    1990, 16(9):18-22. DOI: 10.7519/j.issn.1000-0526.1990.9.004
    [Abstract](387) [HTML](0) [PDF 550.05 K](475)
    The paper analyzes samples of showery rain taken in Novmber, 1988 in Yongxing Is.and shenhang Is.,Xisha Islands, when northeast monsoon was prevailing .The results suggest that pH values of the samples are between 5.90-7.45. The concentration of ions is greater than that of thumder showers of southwest summer monsoon. The concentration of chlorine and sodium ions are large, which are about 86.6%and 59.8% of the anion and cation in total, respectively. The equivalent ratio of chlorine to sulfate iong is 7.6, Contrasting with sulfate predominance in cation for the mainland of China. The enriching processes [of K+,Ca++,Mg++, and SO-4 are in varying degrees. The SO-4 and F- of "extraquantity" are from the continent of East Asia.

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