Response of drainage to tectonics and PS-InSAR derived deformation study in Bilaspur, northwestern Himalaya, India

Joshi, Moulishree; Kothyari, Girish Ch; Malik, Kapil; Taloor, Ajay Kumar

doi:10.1016/j.geog.2021.06.005

Cited by 22 publications

(3 citation statements)

References 78 publications

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“…In the current study, we examined radar data from the year 2015 to 2022. To maintain the coherence of the data set, the "Single Look Complexes (SLC)" images were used after carefully examining the distribution of the temporal baseline [7,55,56]. The one arc-second DEM was used for the production of interferogram and to eliminate the topographic phase correction (Figure 3).…”

Section: Methodsmentioning

confidence: 99%

Assessment of Active Ground Subsidence in the Dibrugarh and Digboi Areas of Assam, Northeast India, Using the PSInSAR Technique

Lakhote,

Kothyari,

Patidar

et al. 2023

Remote Sensing

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Ground deformation on a regional to local scale is the consequence of a wide range of natural processes such as tectonic and anthropogenic activities. Globally, the over-extraction of groundwater and hydrocarbon exploitation are the primary causes of ground subsidence. The current study demonstrates regional scale ground subsidence analysis of the Dibrugarh and Digboi regions of Brahmaputra alluvial plain, Assam, Northeast India. To understand the ongoing surface deformation satellite base, the RADAR technique has been applied using SENTINEL-1A data, which were acquired between 15 October 2015 to 25 January 2022. The assessment carried out via the time series analysis of the radar data suggests that the Dibrugarh area is subsiding at a rate of ~5 mm/yr, whereas the Digboi is deforming at a much faster rate (±22 mm/yr) than Dibrugarh. The presence of active faults in the subsurface and associated deformation is another reason for active ground subsidence. The outcomes of the current study validate that the study area is currently undergoing active subsurface deformation caused by both endogenic as well as exogenic processes. Furthermore, our Persistent Scatterer Interferometric Synthetic Aperture Radar (PSInSAR) and satellite-based analysis suggest that the over-exploitation of the natural resources is enhancing the rate of deformation in the Brahmaputra alluvial plain in the northeast of India.

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Section: Methodsmentioning

confidence: 99%

Assessment of Active Ground Subsidence in the Dibrugarh and Digboi Areas of Assam, Northeast India, Using the PSInSAR Technique

Lakhote,

Kothyari,

Patidar

et al. 2023

Remote Sensing

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“…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). The ground deformation in the form of land uplift and subsidence is expressed by the presence of tensional cracks on the ground, frequent occurrence of landslides, folding/faulting of recent sediments, formation of sag or pressure ridges (Joshi et al, 2021; Kandregula et al, 2021; Kothyari et al, 2021). Globally such active features can be estimated from the interferometric synthetic aperture radar (InSAR) measurements (Abidin et al, 2016; Chen et al, 2018; Dumka et al, 2018; He et al, 2020; Lakhote et al, 2020; Malik et al, 2021) because of its larger coverage and meticulous mm level accuracy (Abidin et al, 2016; Chaussard et al, 2014; Galloway & Burbey, 2011; Wasowski & Bovenga, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The active ground subsidence in rapidly growing urban regions is also associated with the over-extraction of subsurface water (Malik et al, 2021;Perissin, 2015;. The ground deformation in the form of land uplift and subsidence is expressed by the presence of tensional cracks on the ground, frequent occurrence of landslides, folding/faulting of recent sediments, formation of sag or pressure ridges (Joshi et al, 2021; F I G U R E 1 (a) Location map of the study area. (b) Regional geology and major structural zones of the Himalaya (Gansser, 1964).…”

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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Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India

Patidar,

Kothyari,

Kaushik

et al. 2024

J. Mt. Sci.

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Response of drainage to tectonics and PS-InSAR derived deformation study in Bilaspur, northwestern Himalaya, India

Cited by 22 publications

References 78 publications

Assessment of Active Ground Subsidence in the Dibrugarh and Digboi Areas of Assam, Northeast India, Using the PSInSAR Technique

Assessment of Active Ground Subsidence in the Dibrugarh and Digboi Areas of Assam, Northeast India, Using the PSInSAR Technique

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

Extraction of tectonic imprints using geospatial techniques: Evidence from Mandakini River basin, Uttarakhand, India

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