Assessing the shoreline dynamics of Hatiya Island of Meghna estuary in Bangladesh using multiband satellite imageries and hydro-meteorological data

Kabir, Md. Anisul; Salauddin, Md.; Hossain, Khandaker Tanvir; Tanim, Istiaqe Ahmed; Saddam, Md. Mehedi Hasan; Ahmad, Arif Uddin

doi:10.1016/j.rsma.2020.101167

Cited by 29 publications

(11 citation statements)

References 31 publications

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“…As a transitional zone between land and water, the coastal zone is one of the most dynamic and unstable geomorphic units in Bangladesh (Minar et al 2013;Brammer 2014). The coastal environment is governed by terrestrial and marine forces (Kabir et al 2020), and the coastal vulnerability of Bangladesh is largely controlled by the geomorphic processes of the GBM river basins (Islam et al 2015a, b). Also, the external forces, including water-logging, soil erosion, salinity intrusions, sea level rise, cyclone, storm surge, and tsunami, adversely affect the morphological settings of the coastal environment and negatively impact coastal area development activities (CZPo 2005; Barua et al 2010).…”

Section: Coastal Featuresmentioning

confidence: 99%

“…The ununiformed sea level rise along the coast due to high sediment dispersal from the GBM river system makes the delta system more complex and vulnerable (Islam 2011;Rashid et al 2013;Sarwar 2013;Karan 2015). Nevertheless, the coastal geomorphology of Bangladesh is poorly understood, where most of the coastal geomorphic studies are restricted to shoreline shifting (Shibly and Takewaka 2012;Islam et al 2013;Kabir et al 2020), coastal erosion and accretion (Rahman 2012;Alam and Uddin 2013;Sarker et al 2013;Sarwar and Woodroffe 2013;Hussain et al 2014), and morphological studies (Islam et al 2015a, b;Miah et al 2020) at small scale. Hereafter, further research is obligatory considering the long-term changes in the sediment supply from the GBM basin, associating the coastal morphological changes and relative sea level rise throughout the Bangladesh coast, which is critical to protect about 35 million people therein (Ahmad 2019).…”

Section: Plain Land and Coastal Areasmentioning

confidence: 99%

See 1 more Smart Citation

Geomorphological processes and their connectivity in hillslope, fluvial, and coastal areas in Bangladesh: A review

Faisal

Hayakawa

2022

Prog Earth Planet Sci

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Geomorphological knowledge is critical in understanding watershed scale surface processes, including steep mountainous areas and flat lowlands, particularly if the mid- and downstream areas are densely populated and hazard assessments are highly required. However, our knowledge about such surface processes has relatively been limited in some areas in South Asia due likely to the lack of comprehensive studies of geomorphology and related fields. This article undertakes an overview of the geomorphological processes of the disaster-prone deltaic landscape of the Ganges–Brahmaputra–Meghna (GBM), particularly focusing on fluvial processes. The area locates in the downstream of the watershed system including Himalayan Mountains and highly connected with the upper basin morphodynamics, hydrology, and sediment flux. The previous studies are summarized at different geomorphic settings concerning hillslopes, fluvial plains, and coastal areas to provide clarity about the geomorphic processes linking erosion-prone upstream source areas to deposition-dominated downstream areas. The review found that most of the geomorphic researches in Bangladesh are exploring landslide inventory and susceptibility mapping in hilly areas; river channel or riverbank shifting, riverbank erosion and accretion in fluvial environments; watershed morphometric analysis and geomorphic unit identification in plain land; and coastline shifting or coastal erosion and accretion in coastal environments at a small scale. Then, we discuss the fluvial dynamics and sediment transport of the GBM river system to address the knowledge gap in the context of deltaic plain land in Bangladesh, where upstream fluvial sedimentation processes impact the geomorphic connectivity from Himalayan to the Bay of Bengal. Although some studies on the fluvial dynamics and sediment dispersal in the upstream GBM river basin are present, the fluvial processes in the downstream domain of Bangladesh are not fully understood with a limited number of research with field-based approaches. Some future perspectives of geomorphic research in Bangladesh are then mentioned to understand better the complex geomorphological settings in the entire GBM watershed and to strengthen the existing research capacity. This review will also develop a holistic understanding of fluvial geomorphic processes of the GBM River to the policymakers and may be helpful to improve the transboundary river basin management policies or strategies.

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Section: Coastal Featuresmentioning

confidence: 99%

Section: Plain Land and Coastal Areasmentioning

confidence: 99%

Geomorphological processes and their connectivity in hillslope, fluvial, and coastal areas in Bangladesh: A review

Faisal

Hayakawa

2022

Prog Earth Planet Sci

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“…Transects are only generated once there is a parallel construction of baseline and historical coastlines [27]. This research manually generated the baseline along the shoreline with various directions as coastline data is not continuous [28]. Transects were created after setting attributes for both coastlines and baseline.…”

Section: Coastline Change Analysis By Applying Dsasmentioning

confidence: 99%

Long-Term Shoreline Evolution Using DSAS Technique: A Case Study of Quang Nam Province, Vietnam

Quang

Ngan

Tam

et al. 2021

JMSE

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A Quang Nam coastline, located in the central of Vietnam, has been strongly affected by severe erosion and accretion due to climate change and human activities. Thus, understanding the causes and mechanisms of coastal morphology changes is essential to offer optimal coastal management and protection solutions. In this research, the Digital Shoreline Analysis System (DSAS) technique developed by the United States Geological Survey was adopted to calculate rate-of-change statistics from multiple historical coastline positions of Quang Nam province extracted from satellite images, i.e., Landsat and Sentinel images from 1990 to 2019. The coastal dynamic was digitized, visualized, and compared by two statistical parameters provided in DSAS, namely End Point Rate (EPR) and Linear Regression Rate (LRR). The final results reveal that the Quang Nam coast experienced remarkable phenomena of erosion and accumulation over the past three decades. The total number of erosional and accretional transects obtained from the EPR results are 401 and 414, with annual change rates of −1.7 and 0.77 m/year, respectively. The LRR parameter was also considered and illustrated a significant correlation with the EPR, as the obtained R2 value of 0.96. The lowest value of EPR over the period 1990–2019 is −42.4 m/year, highlighting the most significant erosion at the north of Cua Dai estuary, whereas coastline advance is recorded in the south segment. As a result, this study’s outcomes provide helpful information for better and sustainable coastal management in Quang Nam province of Vietnam.

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“…Ngoài ra, với sự phát triển của GIS, những hạn chế trong xác định đường bờ và biến động của nó theo thời gian và không gian được khắc phục [18,19]. Các kết quả chiết tách thông tin từ công nghệ viễn thám có thể sử dụng trong môi trường GIS như là một giải pháp xây dựng cơ sở dữ liệu và phân tích biến động hiệu quả [20], đóng vai trò quan trọng trong việc hỗ trợ ra quyết định nhanh trên phạm vi rộng với giá thành thấp so với các phương pháp truyền thống [21].…”

Section: Mở đầUunclassified

Determination of Shoreline Changes along Upstream of Se San River, Kontum Province based Multi-temporal Remote Sensing Data Analysis

Pham¹,

Hoa²,

Tích³

et al. 2020

EES

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Se San river upstream includes Poko tributary (on the right bank) and Dak Bla tributary (on the left bank), mostly located in Kon Tum province. The process of river sediment decline has dramatic shoreline changes in this area, which becomes a driving-force to modify the current socio-economic development as well as the impact on territorial planning in the future. This study aims to analyze the shoreline changes by extracting multi-temporal satellite imagery of Landsat in the period of 1990-2013 and identify its change effects on land-use. The results show that the strongest erosion rate was -2.96 m/year in Dak Bla tributary (in Kon Tum town). And in the Poko tributary, the average value of erosion rate is -1.31 m/year and the average accretion rate is 1.17 m/year. In the context of dramatic land-use change, this approach allows to support for territorial management and illustrates the accretion-erosion relationship in river basin evolution.

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Assessing the shoreline dynamics of Hatiya Island of Meghna estuary in Bangladesh using multiband satellite imageries and hydro-meteorological data

Cited by 29 publications

References 31 publications

Geomorphological processes and their connectivity in hillslope, fluvial, and coastal areas in Bangladesh: A review

Geomorphological processes and their connectivity in hillslope, fluvial, and coastal areas in Bangladesh: A review

Long-Term Shoreline Evolution Using DSAS Technique: A Case Study of Quang Nam Province, Vietnam

Determination of Shoreline Changes along Upstream of Se San River, Kontum Province based Multi-temporal Remote Sensing Data Analysis

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