| 中国冰冻天气的气候特征 |
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| 引用本文： | 赵珊珊,高歌,张强,王遵娅,殷水清.中国冰冻天气的气候特征[J].气象,2010,36(3):34-38. |
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| 作者姓名： | 赵珊珊 高歌 张强 王遵娅 殷水清 |
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| 作者单位： | 国家气候中心,北京,100081 |
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| 基金项目： | 国家科技支撑计划课题(2007BAC29B02); 中国气象局气象灾害风险区划项目; 中国气象局行业专项(GYHY200706010,GYHY200706005,GYHY200806004)联合资助 |
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| 摘 要： | 研究冰冻天气的空间分布和变化规律对于冰冻灾害的预测、预估以及防灾减灾具有重要意义。利用1961—2008年603个站点雾凇和雨凇天气现象资料,283个站点的电线覆冰资料,采用计算多年平均值、标准冰厚转换、EOF以及求趋势变化等方法,研究了我国冰冻天气的空间分布和气候变化特征。结果表明:全国大部分地区都有冰冻天气出现;雾凇主要出现在北方地区,雨凇主要出现在南方。年冰冻日数随海拔高度增加而增加,但海拔3100 m高度以上冰冻日数较少。冰冻厚度较大的地区位于东北东南部、华北东部、西北地区东南部、西南地区东部、江南东北部。在全球气候变暖背景下,我国大部分地区冰冻天气发生频次减少,但强度增强。
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| 关 键 词： | 冰冻 雨凇 雾凇 电线结冰 |
| 收稿时间： | 2008/12/12 0:00:00 |
| 修稿时间： | 2009/7/24 0:00:00 |
Climate Characteristics of Freezing Weather in China |
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| ZHAO Shanshan,GAO Ge,ZHANG Qiang,WANG Zunya and YIN Shuiqing.Climate Characteristics of Freezing Weather in China[J].Meteorological Monthly,2010,36(3):34-38. |
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| Authors: | ZHAO Shanshan GAO Ge ZHANG Qiang WANG Zunya and YIN Shuiqing |
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| Institution: | ZHAO Shanshan GAO Ge ZHANG Qiang WANG Zunya YIN Shuiqing National Climate Center,Beijing 100081 |
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| Abstract: | Study on climate characteristics of Chinese freezing weather is important to forecast,pre-assessment and disaster prevention.The 48-year averaged rime days and freezing rain days were computed to reflect the frequency and spatial distribution of freezing weather.The observed wire ice load was transformed into standard ice load to analyze the maximum ice load distribution.The spatial and temporal variations of freezing weather were analyzed by EOF expansion.Trends of Chinese yearly maximum ice load were stud... |
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| Keywords: | freezing weather freezing rain rime wire ice load |
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