| 冬季晴热天气成因分析 |
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| 引用本文： | 李宗义,张静,陆登荣,杨兰芳,周跃武. 冬季晴热天气成因分析[J]. 甘肃科学学报, 2002, 0(Z1) |
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| 作者姓名： | 李宗义 张静 陆登荣 杨兰芳 周跃武 |
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| 作者单位： | [1]兰州中心气象台 [2]兰州干旱气象研究所 [3]甘肃兰州 |
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| 摘 要： | 分析了 2002年 1月上旬,甘肃省气温持续偏高的大尺度环流特征,1月10日出现在河西五地市的罕见晴热天气的物理成因.结果表明,造成气温持续偏高和破历史极值的主要原因是:在稳定的环流形势下,伊朗高原的暖气团北上东移,暖平流输送辐散下沉气流增温.
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| 关 键 词： | 冬季 晴热天气 成因分析 |
ANALYSIS OF THE CAUSE OF CLEAR-WARM WEATHER IN WINTER |
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| LI Zong-yi,YANG Lan-fang,ZHOU Yao-wu,ZHANG Jing,LU Deng-rong. ANALYSIS OF THE CAUSE OF CLEAR-WARM WEATHER IN WINTER[J]. Journal of Gansu Sciences, 2002, 0(Z1) |
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| Authors: | LI Zong-yi YANG Lan-fang ZHOU Yao-wu ZHANG Jing LU Deng-rong |
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| Abstract: | The large-scale circulation features of persistant high temperature in Gansu province and the physical reasons of the rare clear-warm weather occurred in Hexi five districts of Gansu in early Jan, 2002, are analysed. The result shows that under stable circulation, the movement of Iran Plateau air mass toward northeast and the thermal advection and directive down flow are the main causes of the persistant warm weather and the high temperature record. |
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| Keywords: | winter clear-warm weather cause analysis |
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