干旱区生态环境知识资源中心(Arid): Reconstructed Aeolian Surface Erosion in Southern Mongolia by Multi-Temporal InSAR Phase Coherence Analyses

Arid

DOI	10.3389/feart.2020.531104
	Reconstructed Aeolian Surface Erosion in Southern Mongolia by Multi-Temporal InSAR Phase Coherence Analyses
	Kim, Jungrack; Dorjsuren, Munkhzul; Choi, Yunsoo; Purevjav, Gomboluudev
通讯作者	Choi, Y
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2020
卷号	8
英文摘要	The Gobi Desert in southern Mongolia has been identified as the strongest dust storm hot spot threatening public health and socio-economic activities in East Asian countries. Despite its significance, the complete mapping of the aeolian surface erosion in southern Mongolia remains unresolved because of extensive region of interest cannot be interpreted easily by conventional approaches. Therefore, in this study, we built a mapping scheme to define on going aeolian erosion and applied it over the southern Gobi Desert. The remote sensing approach applied here was based on an interferometric synthetic-aperture radar (InSAR) time series technique. A number of Sentinel-1 InSAR pairs that generate phase coherences for a certain period were synthesized via the means of principle component analysis to extract the topographic persistence indicative of surface erosion rates. Validation analyses performed through inter-comparisons of phase coherence signals over landmark areas and residuals between global digital elevation models confirmed the reliability of outputs. The results revealed geological lineaments in southern Mongolia confining sandy deposits and the sediment transportation pathways. Apparently, such bounded eolian deposits and transportation mechanisms within geological structures have significantly contributed to dust generation in the Gobi Desert over southern Mongolia. In addition, this study demonstrated that the newly developed InSAR time series technique has great potential for identifying intensified land erosion and dust sources.
英文关键词	land degradation aeolian erosion interferometric synthetic-aperture radar phase coherence time series analysis
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000595340400001
WOS关键词	TIME-SERIES ; DECORRELATION ; DEFORMATION ; GOBI
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327823
作者单位	[Kim, Jungrack] RSS Hydro, RSS Hydro Res & Educ Dept, Luxembourg, Luxembourg; [Dorjsuren, Munkhzul; Purevjav, Gomboluudev] Informat & Res Inst Meteorol Hydrol & Environm, Ulaanbaatar, Mongolia; [Choi, Yunsoo] Univ Seoul, Dept Geoinformat, Seoul, South Korea
推荐引用方式 GB/T 7714	Kim, Jungrack,Dorjsuren, Munkhzul,Choi, Yunsoo,et al. Reconstructed Aeolian Surface Erosion in Southern Mongolia by Multi-Temporal InSAR Phase Coherence Analyses[J],2020,8.
APA	Kim, Jungrack,Dorjsuren, Munkhzul,Choi, Yunsoo,&Purevjav, Gomboluudev.(2020).Reconstructed Aeolian Surface Erosion in Southern Mongolia by Multi-Temporal InSAR Phase Coherence Analyses.FRONTIERS IN EARTH SCIENCE,8.
MLA	Kim, Jungrack,et al."Reconstructed Aeolian Surface Erosion in Southern Mongolia by Multi-Temporal InSAR Phase Coherence Analyses".FRONTIERS IN EARTH SCIENCE 8(2020).