Geo-Hazard Detection and Monitoring Using SAR and Optical Images in a Snow-Covered Area: The Menyuan (China) Test Site

Huang, Qihuan; Wang, Yian; Xu, Jun; Nishyirimbere, Angelique; Li, Zhimin

doi:10.3390/ijgi6100293

Cited by 7 publications

(4 citation statements)

References 25 publications

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“…The PS-InSAR (Persistent Scatterer Interferometric Synthetic Aperture Radar) technique proposed by Ferretti et al [13] can obtain millimeter-level deformation monitoring accuracy. The InSAR technique has been promoted in algorithm research [14][15][16][17][18][19][20][21], surface subsidence [22][23][24], disaster warning [25][26][27][28], permafrost deformation [29][30][31], and other fields have made significant breakthroughs. In recent years, InSAR technology has also been widely used in water conservancy project safety monitoring.…”

Section: Introductionmentioning

confidence: 99%

Time-Series InSAR Deformation Monitoring of High Fill Characteristic Canal of South–North Water Diversion Project in China

Liu

Wen

Qin³

et al. 2023

Applied Sciences

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The Middle Route of the South–North Water Diversion Project has changed the water resources pattern in China. As advanced equipment for the country, it is responsible for the water supply “lifeline” of Beijing, Tianjin, Hebei, Henan, etc. Ensuring its safe operation is a top priority to promote social stability and coordinated economic development between the North and the South. Used persistent scatterer interferometric synthetic aperture radar (PS-InSAR) technology to monitor the deformation of the high fill characteristic canal in Wenzhuang Village, Ye County, during the period from October 2016 to June 2017 for the South–North Water Diversion Project showed that there was significant deformation on the 1 km-long slope of the east bank of the canal, with the maximum deformation volume reaching 36 mm. Through the comparison and verification with the second order leveling data, there are more than 87% of the root mean square error of both less than ±2 mm. The correlation coefficient is 0.96, and the two were highly consistent in deformation trends and values. Through the vertical and cross-sectional analysis of the canal’s east bank and four key monitoring sections, it was found that the east bank of the canal presents overall uneven subsidence, and the closer the canal is to the water, the greater the canal deformation, and vice versa. Further comparison of the PS-InSAR deformation results of the canal from October 2016 to February 2018 proves that this technology cannot only monitor the subsidence range and rate of the South–North Water Diversion canal but also accurately identify the subsidence sequence of the east and west banks. It can provide reliable technical support for the safety monitoring and disaster prevention of the South–North Water Diversion canal characterized by high fill and deep excavation.

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Section: Introductionmentioning

confidence: 99%

Time-Series InSAR Deformation Monitoring of High Fill Characteristic Canal of South–North Water Diversion Project in China

Liu

Wen

Qin³

et al. 2023

Applied Sciences

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“…Surface deformation is very essential for the characterization and better understanding of many natural and anthropogenic processes [1][2][3][4][5]. Due to the influence of mining activities such as excavation, dumping, blasting, drainage, transportation and so forth, surface deformation is very distinct and complicated in mining areas, which leads to many geological disasters, such as landslide, subsidence, collapse, cracking and damage to the buildings or other facilities [5].…”

Section: Introductionmentioning

confidence: 99%

“…With the application of remote sensing techniques, surface deformation monitoring using high-resolution satellite data has been widely used and it can well realize the monitoring over a very large area. Many related studies have been carried out on surface deformation such as deformation in volcanoes [1], glacier movement [6][7][8][9][10], landslides [4,[11][12][13], permafrost [14], land subsidence [15,16], deformation in mining areas [5,[17][18][19][20] or other geohazards detections [2,[21][22][23][24]. A variety of approaches using interferometric synthetic aperture radar (InSAR) or space-borne differential InSAR have been used for the monitoring of mining-induced displacements in many mining areas [5].…”

Section: Introductionmentioning

confidence: 99%

Retrieving Surface Deformation of Mining Areas Using ZY-3 Stereo Imagery and DSMs

Hu,

Xu,

Zhang

et al. 2023

Remote Sensing

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Measuring surface deformation is crucial for a better understanding of spatial-temporal evolution and the mechanism of mining-induced deformation, thus effectively assessing the mining-related geohazards, such as landslides or damage to surface infrastructures. This study proposes a method of retrieving surface deformation by combining multi-temporal digital surface models (DSMs) with image homonymous features using China’s ZY-3 satellite stereo imagery. DSM is generated from three-line-array images of ZY-3 satellite using a rational function model (RFM) as the imaging geometric model. Then, elevation changes in deformation are extracted using the difference of DSMs acquired at different times, while planar displacements of deformation are calculated using image homonymous features extracted from multi-temporal digital orthographic maps (DOMs). Scale invariant feature transform (SIFT) points and line band descriptor (LBD) lines are selected as two kinds of salient features for image homonymous features generation. Cross profiles are also extracted for deformation in typical regions. Four sets of stereo imagery acquired in 2012 to 2022 are used for deformation extraction and analysis in the Fushun coalfield of China, where surface deformation is quite distinct and coupled with rising and descending elevation together. The results show that 21.60% of the surface in the study area was deformed from 2012 to 2017, while a decline from 2017 to 2022 meant that 17.19% of the surface was deformed with a 95% confidence interval. Moreover, the ratio of descending area was reduced to 6.44% between 2017 and 2022, which is lower than the ratios in other years. The slip deformation area in the west open pit mine is about 1.22 km2 and the displacement on the south slope is large, reaching an average of 26.89 m and sliding from south to north to the bottom of the pit between 2012 and 2017, but elevations are increased by an average of about 16.35 m, involving an area of about 0.86 km2 between 2017 and 2022 due to the restoration of the open pit. The results demonstrate that more quantitative features and specific surface deformation can be retrieved in mining areas by combining image features with DSMs derived from ZY-3 satellite stereo imagery.

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“…At the regional scale, several applications for mapping active ground movements have been presented by using archive data for the investigation of subsidence phenomena [37][38][39][40][41][42][43][44] and landslides [45,46]. Recently, applications to wide areas were presented for monitoring and back-investigating ground deformations [47,48] and for assessing the applicability of Sentinel-1 constellation products [49,50].…”

Section: Introductionmentioning

confidence: 99%

Monitoring Ground Instabilities Using SAR Satellite Data: A Practical Approach

Soldato

Solari

Raspini

et al. 2019

IJGI

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Satellite interferometric data are widely exploited for ground motion monitoring thanks to their wide area coverage, cost efficiency and non-invasiveness. The launch of the Sentinel-1 constellation opened new horizons for interferometric applications, allowing the scientists to rethink the way in which these data are delivered, passing from a static view of the territory to a continuous streaming of ground motion measurements from space. Tuscany Region is the first worldwide example of a regional scale monitoring system based on satellite interferometric data. The processing chain here exploited combines a multi-interferometric approach with a time-series data mining algorithm aimed at recognizing benchmarks with significant trend variations. The system is capable of detecting the temporal changes of a wide variety of phenomena such as slow-moving landslides and subsidence, producing a high amount of data to be interpreted in a short time. Bulletins and reports are derived to the hydrogeological risk management actors at regional scale. The final output of the project is a list of potentially hazardous and accelerating phenomena that are verified on site by field campaign by completing a sheet survey in order to qualitatively estimate the risk and to suggest short-term actions to be taken by local entities. Two case studies, one related to landslides and one to subsidence, are proposed to highlight the potential of the monitoring system to early detect anomalous ground changes. Both examples represent a successful implementation of satellite interferometric data as monitoring and risk management tools, raising the awareness of local and regional authorities to geohazards.

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Geo-Hazard Detection and Monitoring Using SAR and Optical Images in a Snow-Covered Area: The Menyuan (China) Test Site

Cited by 7 publications

References 25 publications

Time-Series InSAR Deformation Monitoring of High Fill Characteristic Canal of South–North Water Diversion Project in China

Time-Series InSAR Deformation Monitoring of High Fill Characteristic Canal of South–North Water Diversion Project in China

Retrieving Surface Deformation of Mining Areas Using ZY-3 Stereo Imagery and DSMs

Monitoring Ground Instabilities Using SAR Satellite Data: A Practical Approach

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