| 关于气象灾害笼罩面积与出现概率的一个定理 |
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| 引用本文： | 张学文.关于气象灾害笼罩面积与出现概率的一个定理[J].新疆气象,2007,1(3):15-18. |
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| 作者姓名： | 张学文 |
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| 作者单位： | 中国气象局乌鲁木齐沙漠气象研究所 新疆乌鲁木齐830002 |
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| 摘 要： | 从气象图表(如天气图)上可以得到某气象灾害(如暴雨、高温,也可以是一般气象现象、要素、变量等)所笼罩的面积占总面积的百分比F,从气象资料中可以得到该气象现象的出现概率p。本文证明:F对时间的平均值等于p对天气图面积的平均值。本文初步讨论了这个定理的应用,还指出对这类问题的深入分析会引出分布函数概念和熵气象学。
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| 关 键 词： | 气象现象 概率 气象现象占有的面积 定理 分布函数 |
| 文章编号： | 1002-0799（2007）03-0015-03 |
| 收稿时间： | 2006-11-10 |
| 修稿时间： | 2006年11月10 |
A Theorem about the Cover Area of Certain Meteorological Phenomena and Its Appearance Probability |
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| ZHANG Xue-wen.A Theorem about the Cover Area of Certain Meteorological Phenomena and Its Appearance Probability[J].Bimonthly of Xinjiang Meteorology,2007,1(3):15-18. |
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| Authors: | ZHANG Xue-wen |
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| Institution: | Institute of Desert Meteorology, CMA ,Urumqi 830002, China |
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| Abstract: | On a weather chart,it is easy to get a ratio F that expresses the percentage of the cover area of certain meteorological disaster(such as storm or very high temperature,and can also be a general meteorological phenomenon,element and variable etc.) with total area of that weather chart.It is easy to get the appearance probability p of which phenomena for every meteorological station.We proved a theorem that the average of F for time equal to the average of p for area of that weather chart.We discussed some applications of this theorem and point out this problem will elicit the concept of distribution function and entropy meteorology. |
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| Keywords: | meteorological phenomena probability cover area of meteorological phenomena theorem distribution function |
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