| 作物气象灾害危害性的多目标灰色局势决策 |
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| 引用本文： | 刘流,蒙远文,黄洪峰.作物气象灾害危害性的多目标灰色局势决策[J].热带气象学报,1995,11(1):92-96. |
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| 作者姓名： | 刘流 蒙远文 黄洪峰 |
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| 作者单位： | 广东省气象局，中国气象科学研究院 |
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| 基金项目： | 85—906攻关项目,08—01、08—05专题 |
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| 摘 要： | 计算了１９９１年７月４－９日的梅雨锋强度降水过程的热源Ｑ１和水汽汇Ｑ２，结果表明，存在着两类云系即对流云和层状云对Ｑ１和Ｑ２的结构产生影响。对流加热发生在强降水区上空，而层状云加热发生在对流区周围的弱降水区上空，在对流加热区，大量的潜热释放形成最的热源和水汽汇，热源峰值出现在上部对流层，水汽汇峰值出现在下部对流层，在层状云区，通常０℃层以上为热源和水汽汇，０℃层以下的热汇和水汽源，层状云引起的Ｑ１
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| 关 键 词： | 热源 对流加热 层状云加热 梅雨锋 暴雨过程 |
COUNTERMEASURE IN MULTIPURPOSE GREY SITUATIONS AGAINST THE THREAT OF COLD WEATHER,DROUGHT AND FLOOD ON CROPS |
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| Liu Liu,Meng Yuanwen and Huang Hongfeng.COUNTERMEASURE IN MULTIPURPOSE GREY SITUATIONS AGAINST THE THREAT OF COLD WEATHER,DROUGHT AND FLOOD ON CROPS[J].Journal of Tropical Meteorology,1995,11(1):92-96. |
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| Authors: | Liu Liu Meng Yuanwen and Huang Hongfeng |
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| Institution: | Liuzhou Meteorological Bureau Liuzhou, Liuzhou, 515001;Guangxi Academy of Meteorlolgical Science;Guangxi Academy of Meteorlolgical Science |
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| Abstract: | Using optimum situational concept and its countermeasure method in measure-taking for grey situations,three amounts of climatic decrement of crop yield,loss of output by value per unit area and occurrence rate of disaster are established for analyses of types of damages caused on principal Guangxi crops by drought,flood or cold.It forms a multipurpose grey situation with event items(A=ai,i=1,2,3,....,n) for types of disaster and countermeasure item(B=bj,j=1,2,3,....,8) for the eight prefectures of Guangxi.The situation is optimized before presenting an explicit result of countermeasure for the prefectures. |
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| Keywords: | Heat source Moisture sink Convective heating Stratiform heating |
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