| 南京近50年冬季低温冰冻积雪事件的气候特征 |
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| 引用本文： | 尹东屏,孙燕.南京近50年冬季低温冰冻积雪事件的气候特征[J].灾害学,2011,26(2):35-38,44. |
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| 作者姓名： | 尹东屏 孙燕 |
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| 作者单位： | 江苏省气象台,江苏南京,210008 |
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| 基金项目： | 公益性行业(气象)科研专项经费项目(GYHY201006010); 江苏省气象局开放基金项目(K201002) |
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| 摘 要： | 应用南京逐日观测资料分析了南京低温、冰冻和积雪灾害的变化特征及其与区域气候变暖的联系,得到如下结论:①低温、冰冻、积雪事件都存在一定的年代际和年际的周期变化;冬季平均最低气温和极端最低气温具有相似的周期性特征;积雪深度的年代际尺度的周期特征明显,但是较小尺度的年际周期不明显;②近50年来南京的低温、冰冻、积雪事件呈现波动下降的趋势;③南京年均气温和低温、冰冻、积雪事件之间存在较强的相关性与区域气候变暖关系密切。
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| 关 键 词： | 气候变暖 低温 冰冻 积雪 灾害 南京 |
Climatic Characteristics of Low-temperature Freezing and Snow Calamities in Nanjing in Recent 50 Years |
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| Yin Dongping,Sun Yan.Climatic Characteristics of Low-temperature Freezing and Snow Calamities in Nanjing in Recent 50 Years[J].Journal of Catastrophology,2011,26(2):35-38,44. |
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| Authors: | Yin Dongping Sun Yan |
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| Institution: | Yin Dongping and Sun Yan (Meteorological Observatory of Jiangsu Province,Nanjing 210008,China) |
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| Abstract: | Based on daily observation data of Nanjing,change characteristics of low-temperature,freezing and snow calamity and their relation with regional climate warming are analyzed.The result show that:(1) Low-temperature,freezing and snow calamities are of inter-decadal and inter-annual periodic changes in a certain degree.The average low temperature in winter and the extreme minimum temperature are similar in periodic features. Period characteristic of decades scale for snow depth is obvious,while annual period ... |
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| Keywords: | climate warming low-temperature freezing snow calamity Nanjing |
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