Estimation of active surface deformation in the eastern Kachchh region, western India: Application of multi-sensor DInSAR technique

Lakhote, Abhishek; Thakkar, M. G.; Kandregula, Raj Sunil; Jani, Chirag; Kothyari, Girish Ch; Chauhan, Gaurav; Bhandari, Subhash

doi:10.1016/j.quaint.2020.07.010

Cited by 38 publications

(13 citation statements)

References 42 publications

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“… Analysis of the hazard index of geological deformation Based on data availability and the occurrence of geological disasters from 2016 to 2020, we finally chose data from 2016, which had more geological disasters, as the representative data. The geological deformation was calculated by the DInSAR technique 40 , 41 . Then, based on the geological deformation results, we calculate the average rate of land subsidence.…”

Section: Methodsmentioning

confidence: 99%

Natural hazard triggered technological risks in the Yangtze River Economic Belt, China

Gao

Cao

et al. 2021

Sci Rep

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With the continuous occurrence of natural disasters, natural hazard triggered technological accident (Natech) risks also follow. At present, many countries have performed much research on Natech risks. However, there is still a lack of Natech research at the regional or watershed level in China. The Yangtze River Economic Belt (YREB) is not only an industrially intensive development area but also an area with frequent natural disasters. In this study, we selected the YREB as a typical case to study the Natech risk triggered by floods, geological disasters, and typhoons at the regional or watershed level. Four types of risk indicators representing risk sources, natural hazard factors, control levels, and vulnerabilities were developed to assess the spatial patterns of the Natech risks of the YREB. The results show that the Natech risk triggered by floods and typhoons is more serious in eastern area and central area than in western zone and that the Natech risk triggered by geological disasters is more serious in the west part. Approximately 7.85% of the areas are at relatively high-risk and above the Natech risk level based on the comprehensive assessment of three types of Natech risks. The combined population of these areas accounts for approximately 15.67% of the whole YREB, and the combined GDP accounts for approximately 25.41%. It can be predicted that the occurrence of Natech risks in these areas will cause serious harm to both the people and the economy. This work will provide the basis and key management direction for Natech risk management in the YREB.

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Section: Methodsmentioning

confidence: 99%

Natural hazard triggered technological risks in the Yangtze River Economic Belt, China

Gao

Cao

et al. 2021

Sci Rep

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“…Tobita et al (2011) estimaron la deformación cosísmica y establecieron un modelo de la falla que provocó el terremoto de Yushu (China) el año 2010 utilizando imágenes PALSAR. Lakhote et al (2020) estimaron la deformación en la región oriental del Kachchh en la India, sobre las islas Khadir, Bela, y Chorar, con la técnica DInSAR multisensor con datos Envisat (2003Envisat ( -2009 y Sentinel (2018-2020) observando desplazamientos de 0,19-0,22 y 0,16-0,18 cm, respectivamente. Por otro lado, algunos estudios establecieron la distribución espacial de la subsidencia y su relación con datos geológicos como Abidin et al (2013), Yastika et al (2019) y Lakhote et al (2020).…”

Section: Introductionunclassified

“…Lakhote et al (2020) estimaron la deformación en la región oriental del Kachchh en la India, sobre las islas Khadir, Bela, y Chorar, con la técnica DInSAR multisensor con datos Envisat (2003Envisat ( -2009 y Sentinel (2018-2020) observando desplazamientos de 0,19-0,22 y 0,16-0,18 cm, respectivamente. Por otro lado, algunos estudios establecieron la distribución espacial de la subsidencia y su relación con datos geológicos como Abidin et al (2013), Yastika et al (2019) y Lakhote et al (2020). Se destacan especialmente las investigaciones de Parcharidis et al (2009) y Fernández et al (2009 que estudiaron fallas activas sobre ambientes urbanos.…”

Section: Introductionunclassified

Estimación de la subsidencia en torno a la traza de la falla de San Ramón Chile, mediante la técnica SBAS DInSAR usando imágenes TerraSAR-X

2022

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Chile is one of the countries with the highest seismicity in the world and is affected by three types of seismogenic sources; interplate, intraplate and superficial or cortical intraplate. In this context, in the eastern sector of the city of Santiago, capital of Chile, the Falla San Ramón (FSR) is located. It is a cortical seismogenic source, which threatens its habitants and the various economic activities that are located in that sector, geological hazards such as earthquakes and mass removals. In relation to the above, this study aims to identify and establish the subsidence areas in a longitudinal strip of the Santiago mountain front and its impact on the neighboring communes to the FSR trace during the years 2011 to 2017. To do this, The DInSAR technique was used with the Small Baseline Subset (SBAS) algorithm through a time series of images from the TerraSAR-X (TSX) satellite. The results show subsidence zones, with average displacements ranging from -13.11 mm to +9.89 mm, with an average annual speed rate of -2.19 to +1.65 mm/year.

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“…The ground deformation (uplift/subsidence) in the active thrust/fault/fold belt is the most owing to the movement along active faults (Dumka et al, 2018; Kandregula et al, 2021; Kothyari et al, 2021; Lakhote et al, 2020). The active ground subsidence in rapidly growing urban regions is also associated with the over‐extraction of sub‐surface water (Malik et al, 2021; Perissin, 2015; Perissin et al, 2011; Perissin & Wang, 2011).…”

Section: Introductionmentioning

confidence: 99%

Active tectonics in the Main Boundary Thrust zone, Garhwal Himalaya, as evident from palaeoseismic signatures, morphotectonic features and PSI base ground deformation

2022

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In the Garhwal Himalaya, the steeply inclined Main Boundary Thrust (MBT) is characterized by landforms that indicate towards tectonic activity in the recent past. Linear active fault trace, sub‐recent fault scarps, strath terrace, uplifted terraces, deflected drainage, and triangular facet cones are some of the morphotectonic evidences of recent tectonic activity along the MBT. The MBT is defined by active fault trace in the form of linear depression and shows a prominent slope break across it. Thrusting of the Lesser Himalayan bedrocks over the colluvial deposits and back tilting of the colluvial deposits are also observed in the MBT zone. The formation of the sag pond and the deposition of the Quaternary lacustrine sediments followed by the deformation of the lacustrine deposits indicate phases of tectonic activities along the MBT. The later phase of deformation is represented by the folded lacustrine and colluvial deposits, where the amplitude of the fold measures about 3 m‐high and the deformed section measures about 23 m in length. The ongoing deformation patterns of the MBT zone have also been monitored with the help of Synthetic Aperture Radar‐based time series analysis. We used Sentinel‐1C dataset in ascending direction with polarization of the VV+ VH acquired between December 2, 2017 to September 7, 2021 to identify phase changes caused by ongoing active deformation. The Persistent Scatterer Interferometry (PSI) result based on Sentinel‐1A suggests that the Dehradun–Mussoorie and adjoining region has undergone an average deformation of 5.5 to −11 mm/year and the ground displacement of 1.5 to −3.8 cm. The time series analysis reveals that the Mussoorie hills in the MBT zone have higher rate of deformation.

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Estimation of active surface deformation in the eastern Kachchh region, western India: Application of multi-sensor DInSAR technique

Cited by 38 publications

References 42 publications

Natural hazard triggered technological risks in the Yangtze River Economic Belt, China

Natural hazard triggered technological risks in the Yangtze River Economic Belt, China

Estimación de la subsidencia en torno a la traza de la falla de San Ramón Chile, mediante la técnica SBAS DInSAR usando imágenes TerraSAR-X

Active tectonics in the Main Boundary Thrust zone, Garhwal Himalaya, as evident from palaeoseismic signatures, morphotectonic features and PSI base ground deformation

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