| 1955-2005年中国极端气温的变化 |
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| 引用本文： | 张宁,孙照渤,曾刚.1955-2005年中国极端气温的变化[J].南京气象学院学报,2008,31(1):123-128. |
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| 作者姓名： | 张宁 孙照渤 曾刚 |
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| 作者单位： | 南京信息工程大学,江苏省气象灾害重点实验室,江苏,南京,210044 |
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| 基金项目： | 国家自然科学基金
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国家科技支撑计划重点项目
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江苏省高校自然科学基金 |
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| 摘 要： | 利用1955-2005年中国234站逐日最高、最低气温资料，通过计算趋势系数等，研究了中国年、季极端气温变化趋势的时空特征。结果表明：空间分布上，我国年和四季的极端低温均表现出稳定的增温趋势；年、春季和夏季极端高温在黄河下游地区出现了较明显的降温趋势，而在华南地区增温趋势较显著；时间演变上，无论年还是四季，极端低温的增温幅度明显大于极端高温的增幅；极端气温在四季均有增温趋势，尤其以冬季的升温最明显；年极端高温和低温的年代际变化基本一致。
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| 关 键 词： | 极端气温 趋势系数 时空特征 年代际变化 |
| 文章编号： | 1000-2022（2008）01-0123-06 |
| 收稿时间： | 2006-10-25 |
| 修稿时间： | 2006-12-27 |
Change of Extreme Temperatures in China during 1955-2005 |
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| ZHANG Ning,SUN Zhao-bo,ZENG Gang.Change of Extreme Temperatures in China during 1955-2005[J].Journal of Nanjing Institute of Meteorology,2008,31(1):123-128. |
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| Authors: | ZHANG Ning SUN Zhao-bo ZENG Gang |
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| Institution: | (Jiangsu Key Laboratory of Meteorological Disaster,NUIST,Nanjing 210044,Claina) |
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| Abstract: | Based on daily maximum and minimum temperature data of 234 stations in China during the period of 1955--2005, the spatial and temporal features of trends of annual and seasonal extreme temperatures are studied by using modem statistical diagnostic methods such as the computation of trend coefficients. Results show the stably increasing trends of annual and seasonal extreme minimum temperatures all over China. Decreasing trends of extreme maximum temperatures are obvious in the lower reaches of the Yellow River in year, spring and summer; while increasing trends of extreme maximum temperatures are evident in South China. Increasing trends of extreme temperatures are detected in most areas of China, and the increase range of extreme minimum temperatures is greater than that of extreme maximum temperatures. Increasing trends of extreme minimum temperatures are found in every season, especially in winter. Further analysis suggests that interdecadal variations in extreme maximum and minimum temperatures are generally consistent. |
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| Keywords: | extreme temperature trend coefficient spatial and temporal feature interdecadal variation |
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