气候变化领域集成服务门户(CCPortal): Active Layer Thickness Retrieval of Qinghai-Tibet Permafrost Using the TerraSAR-X InSAR Technique

CCPortal

DOI	10.1109/JSTARS.2018.2873219
	Active Layer Thickness Retrieval of Qinghai-Tibet Permafrost Using the TerraSAR-X InSAR Technique
	Wang, Chao; Zhang, Zhengjia; Zhang, Hong; Zhang, Bo; Tang, Yixian; Wu, Qingbai
发表日期	2018
ISSN	1939-1404
EISSN	2151-1535
起始页码	4403
结束页码	4413
卷号	11 期号:11
英文摘要	Qinghai-Tibet plateau (QTP) is closely related to global climate change, and it has undergone serious permafrost degradation due to global warming in the last decades. It is crucial to measure the active layer thickness (ALT) for characterizing and monitoring the permafrost degradation of QTP. In this paper, an ALT retrieval model based on ground subsidence derived from synthetic aperture radar interferometry (InSAR), land cover types, and groundwater information is proposed. In particular, the surface subsidence is retrieved using the time-series InSAR technique with TerraSAR-X ST mode images. Moreover, groundwater content models with different land covers are constructed based on multilayered assumptions and in situ data. By taking into account the groundwater content profile and land cover types, the ALT is retrieved from deformation with the full season cycle derived by InSAR technique. The experimental results in Beiluhe indicate that the estimated ALT is consistent with field-measured data. The estimated ALT map shows the difference between the alpine meadow and alpine desert areas, with mean ALT of approximately 1.5 m in alpine meadow area and approximately 3 m in alpine desert area. Our results demonstrate that the InSAR technique with high-resolution SAR images can be of great importance for the study of permafrost environments.
英文关键词	Active layer thickness (ALT); deformation; Qinghai-Tibet permafrost; synthetic aperture radar interferometry (InSAR)
语种	英语
WOS研究方向	Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Engineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
WOS关键词	THAW-FREEZE ALGORITHM ; CLIMATE-CHANGE ; PLATEAU ; CONSTRUCTION ; ENVIRONMENTS ; DEFORMATION ; PREDICTION
WOS记录号	WOS:000452730100038
来源期刊	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
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/240249
作者单位	[Wang, Chao; Zhang, Zhengjia; Zhang, Hong; Zhang, Bo; Tang, Yixian] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China; [Wang, Chao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wu, Qingbai] Chinese Acad Sci, North West Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Chao,Zhang, Zhengjia,Zhang, Hong,et al. Active Layer Thickness Retrieval of Qinghai-Tibet Permafrost Using the TerraSAR-X InSAR Technique[J]. 中国科学院西北生态环境资源研究院,2018,11(11).
APA	Wang, Chao,Zhang, Zhengjia,Zhang, Hong,Zhang, Bo,Tang, Yixian,&Wu, Qingbai.(2018).Active Layer Thickness Retrieval of Qinghai-Tibet Permafrost Using the TerraSAR-X InSAR Technique.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,11(11).
MLA	Wang, Chao,et al."Active Layer Thickness Retrieval of Qinghai-Tibet Permafrost Using the TerraSAR-X InSAR Technique".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 11.11(2018).