干旱区生态环境知识资源中心(Arid): Penetration Depth Inversion in Hyperarid Desert From L-Band InSAR Data Based on a Coherence Scattering Model

Arid

DOI	10.1109/LGRS.2020.3011706
	Penetration Depth Inversion in Hyperarid Desert From L-Band InSAR Data Based on a Coherence Scattering Model
	Liu, Guanxin; Fu, Haiqiang; Zhu, Jianjun; Wang, Changcheng; Xie, Qinghua
通讯作者	Fu, HQ (corresponding author), Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China.
来源期刊	IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
ISSN	1545-598X
EISSN	1558-0571
出版年	2021
卷号	18 期号:11 页码:1981-1985
英文摘要	The potential of interferometric synthetic aperture radar (InSAR) for subsurface height estimation has long been recognized; however, this method is greatly limited by the data sources and the various errors encountered in a highly dynamic environment such as a desert. In this letter, a coherence scattering model based on the volume coherence and imaging geometry of the InSAR acquisitions is proposed to retrieve the penetration depth of the synthetic aperture radar (SAR) signal in a hyperarid desert area. The proposed method includes two main parts: 1) the dielectric constant of the study area is first derived by employing an empirical model with the L-band SAR data, and then, the results are used to calibrate the vertical effective wavenumber after the refraction process and 2) together with the extracted volume coherence from the SAR data, the scattering model is employed to retrieve the penetration depth. The application scope of the vertical effective wavenumber in the volume and temporal decorrelation effect of the model is also discussed in this letter. The method was tested with the Advanced Land Observing Satellite-1 (ALOS-1) Phased Array-type L-Band Synthetic Aperture Radar (PALSAR) data from a desert area in southeast Libya. The results show that the average penetration depth of the L-band SAR in the study area is 2.98 m, and the standard deviation is 1.06 m.
英文关键词	Synthetic aperture radar Coherence Dielectric constant Decorrelation L-band Data models Coherence scattering model desert dielectric constant interferometric synthetic aperture radar (InSAR) penetration depth
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000711828000028
WOS关键词	WESTERN DESERT
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368040
作者单位	[Liu, Guanxin; Fu, Haiqiang; Zhu, Jianjun; Wang, Changcheng] Cent South Univ, Sch Geosci & Infophys, Changsha 410083, Peoples R China; [Xie, Qinghua] China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guanxin,Fu, Haiqiang,Zhu, Jianjun,et al. Penetration Depth Inversion in Hyperarid Desert From L-Band InSAR Data Based on a Coherence Scattering Model[J],2021,18(11):1981-1985.
APA	Liu, Guanxin,Fu, Haiqiang,Zhu, Jianjun,Wang, Changcheng,&Xie, Qinghua.(2021).Penetration Depth Inversion in Hyperarid Desert From L-Band InSAR Data Based on a Coherence Scattering Model.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,18(11),1981-1985.
MLA	Liu, Guanxin,et al."Penetration Depth Inversion in Hyperarid Desert From L-Band InSAR Data Based on a Coherence Scattering Model".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 18.11(2021):1981-1985.