Multi‐temporal <scp>InSAR</scp> analysis to monitor landslides using the small baseline subset (<scp>SBAS</scp>) approach in the Mila Basin, Algeria

Medhat, Noha Ismail; Yamamoto, Masa‐yuki; Tolomei, Cristiano; Harbi, Assia; Maouche, Saïd

doi:10.1111/ter.12591

Cited by 8 publications

(3 citation statements)

References 84 publications

(105 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whether the landslide slips or not depends on the relationship between the slope angle and the critical angle, and the critical angle is influenced by the block material composition, size, shape, and water content. Most of the non-earthquake landslides are triggered by broken structures, soil strength, intensive rainfall, and the effect of water level in many studies [60][61][62]. Accordingly, the causes of the Cheyiping landslide are divided into internal causes, mainly topography, geology, geotechnical properties, and external causes of water for analysis.…”

Section: The Inducement Of the Landslidementioning

confidence: 99%

See 1 more Smart Citation

Monitoring Seasonal Movement Characteristics of the Landslide Based on Time-Series InSAR Technology: The Cheyiping Landslide Case Study, China

et al. 2022

View full text Add to dashboard Cite

Landslides are one of the extremely high-incidence and serious-loss geological disasters in the world, and the early monitoring and warning of landslides are of great importance. The Cheyiping landslide, located in western Yunnan Province, China, added many cracks and dislocations to the surface of the slope due to the severe seasonal rainfall and rise of the water level, which seriously threaten the safety of residents and roads located on the body and foot of the slope. To investigate the movement of the landslide, this paper used Sentinel-1A SAR data processed by time-series interferometric synthetic aperture radar (InSAR) technology to monitor the long-time surface deformation. The landslide boundary was defined, then the spatial distribution of landslide surface deformation from 5 January 2018 to 27 December 2021 was obtained. According to the monthly rainfall data and the temporal deformation results, the movement of the landslide was highly correlated with seasonal rainfall, and the Cheyiping landslide underwent seasonal sectional accelerated deformation. Moreover, the water level change of the Lancang River caused by the water storage of the hydropower station and seasonal rainfall accelerates the deformation of the landslide. This case study contributes to the interpretation of the slow deformation mechanism of the Cheyiping landslide and early hazard warning.

show abstract

Section: The Inducement Of the Landslidementioning

confidence: 99%

“…Water is a major cause of landslides [61]. The involvement of water removes the adsorption bond between soil particles, changes the pore water pressure, reduces the resistance to sliding, and erodes the strength of the soil.…”

Section: Influence Of Seasonal Rainfall and Water Levelmentioning

confidence: 99%

Monitoring Seasonal Movement Characteristics of the Landslide Based on Time-Series InSAR Technology: The Cheyiping Landslide Case Study, China

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The Interferometric Synthetic Aperture Radar (InSAR) has been used for the last two decades to measure the deformation occurring on the Earth's surface and to determine the direction of active deformation (Medhat et al, 2022). Long-term InSAR analysis has been used to extract and monitor several types of landslides.…”

Section: Introductionmentioning

confidence: 99%

Mass movement evaluation in deformed clastic rock with InSAR technique

Bayik,

Abdikan,

Gül

2023

Earth Surf Processes Landf

View full text Add to dashboard Cite

This study uses multitemporal InSAR images to assess different types of mass movements occurring in the Seydikemer (Muğla, SW Türkiye) district. A major highway connecting the Fethiye district and Antalya province and numerous small settlements of various sizes are found in the study area. In terms of summer tourism, they are Türkiye's most well‐known locations. Since the 1960s, at least according to official records, mass movements in this area have been known to negatively impact human life. Some areas have even been declared disaster zones for this reason. However, the movement's size, type, and susceptibility to landslides have all been studied in the last 10–15 years. With satellite images and field studies, distinctive lobate‐shaped movements were classified as inactive and active. During fieldwork, characteristic features such as rough topography and bending trees were easily observed and indicated extremely slow and large‐scale movement. In this study, it was found that movement less than 7–8 mm/year could be classified as ‘extremely slow’ mass movement like a ‘creep’, and moving up to 43 mm/year was evaluated as ‘very slow’ movement and ‘earth slide’ on a rigid surface. The examined moving masses with lobate geometry are activated by natural factors such as valley slope direction, stream bed flow direction, erosion of the toe of the river valleys, earthquakes, excessive precipitation, or human activities such as road opening.

show abstract

Post-earthquake damage classification and assessment: case study of the residential buildings after the Mw = 5 earthquake in Mila city, Northeast Algeria on August 7, 2020

Hamidatou

Chaker

Hallal

et al. 2022

Bull Earthquake Eng

View full text Add to dashboard Cite

On August 7th, 2020, a magnitude Mw = 5.0 earthquake shook 5 km north of Mila city center, northeast of Algeria, causing substantial damage directly to structures, and indirectly from induced impacts of landslides and rock falls, ultimately disrupt to everyday civilian life. Given the recent significant seismic occurrences in the region, a detailed and comprehensive examination and assessment of post-earthquake damage is critical to Algeria. This is primarily because masonry, concrete, and colonial-era structures are sensitive to horizontal motions caused by seismic waves, and because masonry and concrete structures constitute a substantial portion of today’s Algeria's build environment. We present a post-earthquake investigation of the Mila earthquake, starting from the earthquake source, and a catalogue of buildings type, damage categorization, and failure patterns of residential structures in Mila's historic old town, where colonial-era brick buildings prevail. We find that structures that represent notable architectural achievements were severely damaged as a result of the earthquake. Data acquired during the immediate post-earthquake analysis was also evaluated and discussed. The graphical representations of the damages are detailed and complemented by photos. This seismic event has shown the fragility of Algeria's building stock, which must be addressed properly in future years. This study reports on an overall estimate of residential buildings in Mila's lower city, as well as an evaluation of the seismic vulnerability of three neighborhood towns (El-Kherba, Grareme-Gouga, and Azzeba). A generic database for graphical surveys and geometric research was developed and implemented making it possible to evaluate the shear strength on-site. The broad observations, collated data, and consequences were then loaded into the 3Muri structural verification program. Nonlinear static analysis was conducted to analyze probable failure paths and compare the real damage to the software results.

show abstract

Multi‐temporal InSAR analysis to monitor landslides using the small baseline subset (SBAS) approach in the Mila Basin, Algeria

Cited by 8 publications

References 84 publications

Monitoring Seasonal Movement Characteristics of the Landslide Based on Time-Series InSAR Technology: The Cheyiping Landslide Case Study, China

Monitoring Seasonal Movement Characteristics of the Landslide Based on Time-Series InSAR Technology: The Cheyiping Landslide Case Study, China

Mass movement evaluation in deformed clastic rock with InSAR technique

Post-earthquake damage classification and assessment: case study of the residential buildings after the Mw = 5 earthquake in Mila city, Northeast Algeria on August 7, 2020

Contact Info

Product

Resources

About