Channel dynamics and geomorphological adjustments of Kaljani River in Himalayan foothills

Hasanuzzaman, Md.; Gayen, Amiya; Shit, Pravat Kumar

doi:10.1080/10106049.2021.1882008

Cited by 18 publications

(3 citation statements)

References 49 publications

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“…This migration is also significantly influenced by geomorphology, which presents difficulties for riverbank protection structures. Existing structures may be destroyed or avoided as a river meander and changes its course, rendering them useless (Hasanuzzaman et al, 2022). It is crucial to take channel migration into account during the design process and create safety protocols that take longterm changes in the river course into account.…”

Section: Research Locationmentioning

confidence: 99%

Riverbank Protection Structure Failure Factors and Remedial Approach: A Case Study in Kelantan Malaysia

Kay Leng,

Ata,

Jaafar

et al. 2023

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Numerous structural mitigation measures have been implemented to ensure the sustainability of socio-environmental systems. Riverbank erosion can be avoided through the installation of reinforced walls, groynes, and sheer piles, among other measures. However, these structures sometimes fail to protect riverbanks from collapsing due to various factors, including environmental and anthropogenic influences. Therefore, this study aims to identify the factors contributing to the failure of riverbank protection structures and determine remedial approaches to enhance them. The study utilized a combination of site visits, document analysis, and interviews with riverbank protection structure engineers and contractors to gather the necessary information to achieve study objectives. The study found that geomorphology; hydraulics; and unstable sheet pile construction were the factors to the riverbank failure. Besides, study also recommend the suitable remedial approach in terms of design; construction and maintenance to build a stable riverbank protection structure (rock embankment). The findings of this study can contribute to the development of more effective and sustainable riverbank protection measures, which are essential to protect vulnerable communities and ecosystems from the impacts of environmental hazards. The study's results can guide policymakers, engineers, and other stakeholders involved in riverbank protection to better understand the factors that contribute to structure failure and how to mitigate these risks. It can also contribute to the advancement of knowledge in the field of riverbank protection, specifically in identifying the most effective mitigation strategies.

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Section: Research Locationmentioning

confidence: 99%

Riverbank Protection Structure Failure Factors and Remedial Approach: A Case Study in Kelantan Malaysia

Kay Leng,

Ata,

Jaafar

et al. 2023

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“…There are numerous studies investigating the evolution of morphology in river systems that are disrupted by natural and artificial factors such as dam construction, channel modifications, land use changes, volcanic eruptions, etc. [1][2][3][4][5][6][7][8][9]. To adequately describe and predict the geomorphic responses in a fluvial system, four components of channel change should be considered: direction, magnitude, time rate, and spatial extent.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

VNJHM

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Riverbank erosion is a common occurrence in rivers worldwide, leading to significant impacts on shoreline protection and the lives of people residing in affected areas. Scientists, experts, and engineers have devoted considerable attention to study this phenomenon to better understand and predict the damage caused by riverbank failures. In the paper, we propose a mathematical model that combines bottom erosion and riverbank failure mechanisms. The model incorporates high-performance GPUs (Graphics Processing Units) to enhance its computational efficiency and capability. It utilizes a set of equations, such as the Reynolds equations, sediment transport equations, and bed load continuity equation, to simulate the dynamics of flow, sediment transport, and changes in the riverbed. Additionally, the model incorporates the calculation of riverbank failure using the rotational failure mechanism and determines the factor of safety (FS) to assess the stability of riverbanks and the bank failure (BW). If the FS value is less than 1, it indicates that the bank is prone to failure, and such instances are recorded. To evaluate the model's reliability, a case study is conducted on a specific segment of the Tien River in Sa Dec City, Dong Thap Province. This model serves as a crucial tool for socioeconomic planning and implementing effective measures to prevent and mitigate the impacts of riverbank failure in the local area.

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“…Many water resources experts, engineers, and policymakers rely on a thorough grasp of the historical planform evolution in rivers over time to carry out river management operations (Roy and Sinha, 2018; Majumdar and Mandal, 2020). Tremendous endeavors have been undertaken to investigate channel planform behaviour locally and worldwide over the last three decades (Bora and Goswami, 2021; Hasanuzzaman et al 2021). Numerous geospatial technology-based studies have been conducted across the world, including in the United States on the four rivers of Olympic National park (East et al, 2017) , Taiwan on the Zhuoshui River and the Gaoping River (Kuo et al, 2017), Italy on the Scrivia river (Mandarino et al, 2020), Germany on the Old Rhine downstream (Arnaud et al, 2015), China on the lower yellow river (Kong et al, 2020;Guo et al, 2021) and the lower jingjiang reach (Yang et al, 2013), India on the Koshi river (Sinha et al, 2014), the Sharda river (Midha and Mathur, 2014), the Dwarkeswar river (Ghosh and Mukhopadhyay, 2021), the middle lower part of ganga , and the Ramganga river basin (Agnihotri et al, 2020), and Bangladesh on the lower padma river (Rashid, 2020; Nawfee et al, 2018;Halder et al, 2021), the rivers in southern estuarine Region (Islam et al, 2018), the Lower Meghna river (Mahmud et al, 2020), Madhumati river (Biswas et al, 2021), the lower Teesta river (Akhter et al, 2019), and the Brahmaputra river (Rashid et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Long-Term Planform Dynamics of Ganges-Jamuna Confluence With the Aid of Remote Sensing and GIS

Khan

Roy

Mazumder

et al. 2021

Preprint

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The Ganges-Jamuna-Padma confluence is one of the world's most active confluences. The confluence of two of the world's greatest rivers, the Ganges and the Brahmaputra, makes this a globally significant site. Severe erosion along the banks has been caused by morphological changes in this region. Riverbank erosion is one of Bangladesh's most serious problems, as it necessitates costly intervention. Riverbank erosion in Bangladesh affects millions of people each year as a result of erosion in this confluence zone. As a result, it's critical to comprehend the confluence's morphological changing pattern. This study aims to quantify actual bank shifting around the confluence of the Ganges, Jamuna, and Padma in terms of shifting rate and area during a twenty-five-year period (1990-2015). To conduct this study the collected satellite image were geo-referenced and digitize bank lines from using ArcGIS program. The bank line is the linear structure that divides the river channel's outer border from the flood plains. The distance between the extreme margins of the left and right banks, including mid-channel sandbars, was measured to determine channel width variation. To assess the maturity of change, this time frame is subdivided into five phases, each lasting five years. In addition, the long-term shift from 1972 to 2015 is qualitatively noticeable. This morphological alteration was studied using LANDSAT satellite images. The research gives current and trustworthy information on the Ganga-Jamuna confluence's planform dynamics. This research will be useful in the planning and execution of drainage development plans and erosion control strategies in this critical confluence zone.

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Channel dynamics and geomorphological adjustments of Kaljani River in Himalayan foothills

Cited by 18 publications

References 49 publications

Riverbank Protection Structure Failure Factors and Remedial Approach: A Case Study in Kelantan Malaysia

Riverbank Protection Structure Failure Factors and Remedial Approach: A Case Study in Kelantan Malaysia

Untitled

Assessing the Long-Term Planform Dynamics of Ganges-Jamuna Confluence With the Aid of Remote Sensing and GIS

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