气候变化领域集成服务门户(CCPortal): Integrating MODIS LST and Sentinel-1 InSAR to monitor frozen soil deformation in the Qumalai-Zhiduo area, Qinghai-Tibet Plateau

CCPortal

DOI	10.1080/17538947.2023.2218116
	Integrating MODIS LST and Sentinel-1 InSAR to monitor frozen soil deformation in the Qumalai-Zhiduo area, Qinghai-Tibet Plateau
	Yu, Wenyan; Jiang, Mi; Cheng, Xiao
发表日期	2023
ISSN	1753-8947
EISSN	1753-8955
起始页码	1923
结束页码	1943
卷号	16 期号:1
英文摘要	Owing to continuous global warming, frozen soil degradation has become a universal phenomenon, leading to large-scale ground deformation that affects engineering construction and the fragile ecological balance. Geodetic observations, especially temporal InSAR, can quantify ground deformation. However, the accuracy of InSAR modelling in capturing the spatial-temporal variability of the freeze-thaw process depends on the spatial resolution of temperature measurements. This paper proposes a freeze-thaw amplitude model incorporating MODIS LST based on a single-master InSAR time-series deformation to calculate frozen soil deformation. We applied this model to the Qumalai-Zhiduo area of the Qinghai-Tibet Plateau and compared its results with those of the model using weather station temperature in terms of frozen soil deformation parameters, RSME, and characteristic targets. Our study found that the model incorporating MODIS LST performed better in areas far from weather stations, while both models produced similar results in areas of close proximity. Finally, we evaluated another commonly used method for calculating frozen soil deformation parameters and found that the method incorporating MODIS LST based on a single-master time-series deformation is more accurate and precise than the method based on a multi-master SBAS network.
关键词	InSAR deformation monitoring Qinghai Tibet plateau MODIS LST frozen soil
英文关键词	PERMAFROST DEGRADATION; HEIHE RIVER; THAW; REGION; INTERFEROMETRY; RADARSAT-2; MOUNTAIN; ISLAND; MAP
WOS研究方向	Geography, Physical ; Remote Sensing
WOS记录号	WOS:000999513500001
来源期刊	INTERNATIONAL JOURNAL OF DIGITAL EARTH
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282821
作者单位	Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Sun Yat Sen University; Sun Yat Sen University; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Sun Yat Sen University; Sun Yat Sen University
推荐引用方式 GB/T 7714	Yu, Wenyan,Jiang, Mi,Cheng, Xiao. Integrating MODIS LST and Sentinel-1 InSAR to monitor frozen soil deformation in the Qumalai-Zhiduo area, Qinghai-Tibet Plateau[J],2023,16(1).
APA	Yu, Wenyan,Jiang, Mi,&Cheng, Xiao.(2023).Integrating MODIS LST and Sentinel-1 InSAR to monitor frozen soil deformation in the Qumalai-Zhiduo area, Qinghai-Tibet Plateau.INTERNATIONAL JOURNAL OF DIGITAL EARTH,16(1).
MLA	Yu, Wenyan,et al."Integrating MODIS LST and Sentinel-1 InSAR to monitor frozen soil deformation in the Qumalai-Zhiduo area, Qinghai-Tibet Plateau".INTERNATIONAL JOURNAL OF DIGITAL EARTH 16.1(2023).