| 青藏公路沥青路面下土体温度的小波分析 |
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| 引用本文： | 文斌,吴青柏,刘永智,张中琼.青藏公路沥青路面下土体温度的小波分析[J].冰川冻土,2011,33(4):884-890. |
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| 作者姓名： | 文斌 吴青柏 刘永智 张中琼 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃兰州730000／中国科学院研究生院,北京100049;中国科学院寒区旱区环境与工程研究所冻土工程国家重点实验室,甘肃兰州,730000 |
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| 基金项目： | 中国科学院西部行动计划项目(KZCX2-XB2-10); 国家自然科学基金创新群体项目(40821001)资助 |
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| 摘 要： | 青藏公路多年冻土区监测断面所获得的土体温度时间序列，只在时间域中分析会忽略频域中所含的重要信息．为了揭示多年冻土区路基下土体温度随时间变化的频谱特征，运用小波变换法对自然地面下和沥青路面下温度变化的频谱特征和趋势进行分析．结果表明：2m、6m深度处温度变化均存在12月、6月和3月的周期成分及1—2月的短周期成分，其中以...
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| 关 键 词： | 青藏公路 沥青路面 冻土温度 小波变换 频谱特征 趋势 |
Wavelet Analysis of Ground Temperatures under Asphalt Pavement of Qinghai-Tibet Highway |
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| WEN Bin,WU Qing-bai,LIU Yong-zhi,ZHANG Zhong-qiong.Wavelet Analysis of Ground Temperatures under Asphalt Pavement of Qinghai-Tibet Highway[J].Journal of Glaciology and Geocryology,2011,33(4):884-890. |
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| Authors: | WEN Bin WU Qing-bai LIU Yong-zhi ZHANG Zhong-qiong |
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| Institution: | WEN Bin1,2,WU Qing-bai1,LIU Yong-zhi1,ZHANG Zhong-qiong1,2(1.State Key Laboratory of Frozen Soil Engineering,Cold and Arid Regions Environmental and Engineering ResearchInstitute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China,2.Graduate University ofChinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Analyzing the frozen soil temperature series obtained from the monitoring section of Qinghai-Tibet Highway usually only in time domain would ignore the important message in frequency domain.In order to find out spectrum characteristics of the permafrost temperature series,soil temperature series at different depths for original surface and under asphalt pavement are analyzed by using method of wavelet transformation in this paper.It is found that change of frozen soil temperature at 2 m and 6 m depths has a... |
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| Keywords: | Qinghai-Tibet Highway asphalt pavement permafrost temperature wavelet transformation spectrum trend |
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