气候变化领域集成服务门户(CCPortal): Multiple time scale characteristics of permafrost temperature variations along the Qinghai-Xizang Highway

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DOI	10.1016/j.quaint.2014.06.047
	Multiple time scale characteristics of permafrost temperature variations along the Qinghai-Xizang Highway
	Gao, Siru; Wu, Qingbai; Zhang, Zhongqiong; Hou, Yandong; Wang, Qian
发表日期	2014
ISSN	1040-6182
EISSN	1873-4553
起始页码	178
结束页码	186
卷号	349
英文摘要	Temperature is an important dynamic attribute of permafrost, but analysis only in the time domain ignores important information in the frequency domain. A combined time-frequency analysis provides a deeper understanding of temperature variations, revealing the response of warm and cold permafrost to climate change under both embankments and natural ground surfaces. Using 17 years of semimonthly permafrost temperature data from boreholes below natural ground surfaces and embankments in warm and cold permafrost, multiple time scale characteristics of permafrost temperature were analyzed via wavelet transformation. The results show that permafrost temperatures have multiple time scale characteristics. Significant changes to all the main periods were observed near the permafrost table. The response of permafrost to climate change under embankments varied significantly for warm and cold permafrost. Trends for permafrost temperature were forecast using large-scale periods of variation in permafrost temperature. Such forecasts have direct significance for analysis of engineering stability and treatment of roadbed damage in cold regions. (c) 2014 Elsevier Ltd and INQUA. All rights reserved.
英文关键词	Wavelet transformation; Qinghai-Xizang Highway; Permafrost temperature time series; Multiple time scale; Trend analysis
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS关键词	WAVELET ANALYSIS ; CLIMATE-CHANGE ; TIBET ; PLATEAU ; RUNOFF ; RIVER ; MODEL
WOS记录号	WOS:000344950900021
来源期刊	QUATERNARY INTERNATIONAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/240288
作者单位	[Gao, Siru; Wu, Qingbai; Zhang, Zhongqiong; Hou, Yandong] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Wu, Qingbai] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Beiluhe Observat Stn Frozen Soil Environm & Engn, Lanzhou 730000, Gansu, Peoples R China; [Gao, Siru; Hou, Yandong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Qian] Lanzhou Univ, Coll Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Gao, Siru,Wu, Qingbai,Zhang, Zhongqiong,et al. Multiple time scale characteristics of permafrost temperature variations along the Qinghai-Xizang Highway[J]. 中国科学院西北生态环境资源研究院,2014,349.
APA	Gao, Siru,Wu, Qingbai,Zhang, Zhongqiong,Hou, Yandong,&Wang, Qian.(2014).Multiple time scale characteristics of permafrost temperature variations along the Qinghai-Xizang Highway.QUATERNARY INTERNATIONAL,349.
MLA	Gao, Siru,et al."Multiple time scale characteristics of permafrost temperature variations along the Qinghai-Xizang Highway".QUATERNARY INTERNATIONAL 349(2014).