| 近57年锡林浩特市平均最高、最低气温变化特征分析 |
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| 引用本文： | 李春兰,包玉海,包刚,阿拉腾图雅,胡日查,银山,.近57年锡林浩特市平均最高、最低气温变化特征分析[J].水土保持研究,2013,20(5):257-260,265. |
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| 作者姓名： | 李春兰 包玉海 包刚 阿拉腾图雅 胡日查 银山 |
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| 作者单位： | 1. 内蒙古师范大学 地理科学学院, 呼和浩特 010022;2. 内蒙古师范大学 遥感与信息重点实验室, 呼和浩特 010022 |
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| 摘 要： | 该文运用滑动平均法、累积距平法、Morlet小波分析法和Yamamoto方法，分析了锡林浩特市1953—2009年平均最高气温和平均最低气温的变化特征。结果表明:平均最高、最低气温线性倾向率分别是3.47℃/10 a，6.26℃/10 a，存在明显的非对称变化；年较差呈弱减小趋势，其中平均最低气温的贡献最大；90年代变暖程度明显；在57 a尺度上，平均最高气温主要存在50 a和30 a左右的震荡周期，平均最低气温主要存在50 a，30 a和18 a左右的震荡周期；平均最高气温的阶段性和突变性均不明显，平均最低气温存在3个较为明显的变化阶段，且1987年出现突变。
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| 关 键 词： | 变化特征分析 平均最高气温 平均最低气温 锡林浩特市 |
Changes Characteristic of Mean Maximum and Minimum Temperature in Xilinhot City in Recent 57 years |
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| LI Chun-lan,BAO Yu-hai,BAO Gang,Alatengtuya,HU Ri-cha,YIN Shan,.Changes Characteristic of Mean Maximum and Minimum Temperature in Xilinhot City in Recent 57 years[J].Research of Soil and Water Conservation,2013,20(5):257-260,265. |
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| Authors: | LI Chun-lan BAO Yu-hai BAO Gang Alatengtuya HU Ri-cha YIN Shan |
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| Institution: | 1. College of Geographical Sciences, Inner Mongolia Normal University, Hohhot 010022, China;2. Remote Sensing and Information Key Laboratory, Inner Mongolia Normal University, Huhhot 010022, China |
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| Abstract: | This paper used the moving average method, accumulated variance method, Morlet wavelet analysis, and Yamamoto method to analyze the mean maximum temperature and mean minimum temperature of Xilinhot from 1953 to 2009. The results are as following: the linear trend rates of mean maximum temperature and mean minimum temperature are 3.47℃/10 a and 6.26℃/10 a, existing a symmetric change clearly; annual range is weak decreasing trend and mean minimum temperature contributes most; The warming is becoming clear in 1990s; at the 57-year scales, the mean maximum temperature mainly exists 50 a and 30 a fluctuation, the mean minimum temperature mainly exists 50 a, 30 a and 18 a fluctuation; stage and mutagenicity both are not clear in the mean maximum temperature, but there are 3 stages and 1987 is the mutation year in terms of the mean minimum temperature. |
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| Keywords: | variation characteristic analysis mean maximum temperature mean minimum temperature Xilinhot City |
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