气候变化领域集成服务门户(CCPortal): Deformation of the Baige Landslide; Tibet; China; Revealed Through the Integration of Cross-Platform ALOS/PALSAR-1 and ALOS/PALSAR-2 SAR Observations

CCPortal

DOI	10.1029/2019GL086142
	Deformation of the Baige Landslide; Tibet; China; Revealed Through the Integration of Cross-Platform ALOS/PALSAR-1 and ALOS/PALSAR-2 SAR Observations
	Liu X.; Zhao C.; Zhang Q.; Lu Z.; Li Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Twenty-eight ALOS/PALSAR-1 and ALOS/PALSAR-2 images acquired from January 2007 to August 2018 were exploited to characterize the deformation history and temporal evolution of the Baige landslide, China, which successively occurred on 11 October and 3 November 2018. To mitigate the errors caused by the topographic relief and to conduct offset estimates between the SAR images from different platforms, a novel offset-tracking method is proposed. The SAR images were ortho-rectified firstly. Then two-dimensional deformations were retrieved successfully from SAR images acquired at an identical platform and different platforms. Our results indicate that the maximum cumulative deformation in the line-of-sight direction of the Baige landslide reached about −60 m between January 2007 and August 2018. Furthermore, correlation between time series deformation and monthly precipitation and soil moisture derived from SAR intensity images suggests that the failure of the Baige landslide was closely related to the heavy rainfall in the summer of 2018. © 2020. The Authors.
英文关键词	Deformation; Image acquisition; Landslides; Precipitation (meteorology); Soil moisture; Synthetic aperture radar; Cross-platform; Deformation history; Deformation monitoring; Heavy rainfall; Intensity images; Line of Sight; Offset tracking; Temporal evolution; Radar imaging; ALOS; correlation; deformation mechanism; landslide; PALSAR; precipitation intensity; soil moisture; synthetic aperture radar; time series analysis; China; Xizang
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170805
作者单位	School of Geological Engineering and Geomatics, Chang'an University, Xi'an, China; State Key Laboratory of Geo-Information Engineering, Xi'an, China; Roy M. Huffington Department of Earth Sciences, Southern Methodist University, Dallas, TX, United States; School of Engineering, Newcastle University, Newcastle, United Kingdom
推荐引用方式 GB/T 7714	Liu X.,Zhao C.,Zhang Q.,et al. Deformation of the Baige Landslide; Tibet; China; Revealed Through the Integration of Cross-Platform ALOS/PALSAR-1 and ALOS/PALSAR-2 SAR Observations[J],2020,47(3).
APA	Liu X.,Zhao C.,Zhang Q.,Lu Z.,&Li Z..(2020).Deformation of the Baige Landslide; Tibet; China; Revealed Through the Integration of Cross-Platform ALOS/PALSAR-1 and ALOS/PALSAR-2 SAR Observations.Geophysical Research Letters,47(3).
MLA	Liu X.,et al."Deformation of the Baige Landslide; Tibet; China; Revealed Through the Integration of Cross-Platform ALOS/PALSAR-1 and ALOS/PALSAR-2 SAR Observations".Geophysical Research Letters 47.3(2020).