An analysis of coastal erosion in the tropical rapid accretion delta of the Red River, Vietnam

Duc, Do Minh; Nhuận, Mai Trọng; Ngoi, Chu Van

doi:10.1016/j.jseaes.2011.08.014

Cited by 55 publications

(33 citation statements)

References 13 publications

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“…Therefore, adaptation to climate change has rapidly become an urgent issue. The sea level in the north coast is rising about 2 mm/year [10,11]. The number and intensity of tropical cyclones have complicated this change with a tendency of having been much more severe in recent years (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014).…”

Section: Introductionmentioning

confidence: 99%

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

Hung

Duc

Quynh³

et al. 2020

JMSE

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Recently, the coastal zone in Vietnam has experienced more intensive sea attacks due to severe typhoons, climate change, and humsection an activities. Sea level rise has been recorded all along the coast. Moreover, sand exploitation and engineering measures have significantly changed local reliefs and led to apparent sea water level change on the coast of Nam Dinh province. Coastal erosion and sea dike failures have become a serious problem in the region. The site investigation of nearshore topography shows the recent changes to the coast. Hydrodynamic models show that changes of relief and increased wave attacks on dikes. The main reason for sea dike instability is soil erosion due to wave topping; meanwhile, the dikes are stable in terms of sliding. The coast should be reinforced with properly constructed revetments, wave topping preventive measures, and nearshore sand exploitation should be halted.

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Section: Introductionmentioning

confidence: 99%

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

Hung

Duc

Quynh³

et al. 2020

JMSE

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“…Depending on the behavior of the coasts, a number of approaches based on numerical models (Ferreira et al, 2006;Zoran and Anderson, 2006) have been used where dynamic stability, erosion, and accretion of the shores have been assessed. Empirical field studies (Prabaharan et al, 2010;Duc et al, 2012) have also been conducted for assessing coastal erosion. Along with empirical field studies, approaches based on Decision Support Systems (DSS) and Dynamic Computer Modelling (DCM) have been used (Shifeng et al, 2002;Brown et al, 2005) to study coastal land dynamics that are devoted to the detection of coastal morphological changes, measuring both the rates of coastal erosion and accretion and estimating land losses and shoreline changes.…”

Section: Introductionmentioning

confidence: 99%

Where is the coast? Monitoring coastal land dynamics in Bangladesh: An integrated management approach using GIS and remote sensing techniques

Ahmed

Drake

Nawaz

et al. 2018

Ocean & Coastal Management

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This paper draws upon the application of GIS and remote sensing techniques to investigate the dynamic nature and management aspects of land in the coastal areas of Bangladesh. The geomorphological characteristic of the coastal areas is highly dynamic where land erosion and accretion with different rates remain a constant phenomenon. This study focuses on three coastal zones: western, central and eastern that comprise the entire coastal area of the country. At its core, this study uses the past 30 year Landsat satellite images. This research reveals that the rate of accretion in the study area is slightly higher than the rate of erosion. Overall land dynamics indicate a net gain of 237 km² (7.9 km² annual average) of land in the area for the whole period from 1985 to 2015. The results also demonstrate that the rates of both erosion and accretion are higher in the central zone compared to the western and the eastern zones of the coastal area. This is the first time that the entire coastal areas of Bangladesh have been considered for assessment. This study also recommends that coastal managers, planners and policymakers to consider the identified dynamic trends of coastal land before opting for any specific measure. Constant monitoring using the GIS and remote sensing techniques would be a viable management for this purpose. This study has identified some causes of land dynamics, particularly for the three coastal zones, that might be helpful for policymakers in identifying the nature of interventions needs to be taken for specific coastal zones.

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“…The role of sand terrace formed in front of river mouth as a submerged sand source was also pointed out. Duc et al (2012) documented physical mechanism of the erosion at the estuary areas of Red River system, northern Vietnam. Also at this area, Hung and Larson (2014) gave detailed analysis on the coastline and river mouth evolution.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Morphological Change at the Cua Dai River Mouth Through Satellite Image Analysis

Tanaka

Hoang

Nguyen

2017

Int. Conf. Coastal. Eng.

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Morphology of Cua Dai River mouth and adjacent sandy beaches in Hoi An City, Vietnam has been being eroded severely in recent years. Based on analysis of Landsat images, the long-term evolution, decadal scale, of morphology at this area since 1975 to 2015 is discussed. Morphology of river mouth in the period from 1975 to 1991 is highly similar to one in the period from 2003 to 2015, long sandspit on the left side and cuspate shoreline (cuspate foreland) on the right side, whereas the formation of double sandspit and welding between them after that was observed in the period from 1995 to 2002. From the characteristics of morphological change, there are three types of river mouth formed during the 40-year long period are classified. In addition, results of image analysis also indicate that the right bank of river shifted southward about 250 m. This is corresponding to the period with elongation of sandspit on the left after welding from offshore sandbar. The tip of cuspate shoreline on the right side was also observed to move to the south during the period that right river bank shifting southward. Besides the reduction of sediment supply to the river mouth, the shifting to south of main river channel diverting more sediment deposit on the right side of the river mouth, resulting in the erosion of the Cua Dai Beach on the left side became more serious. Countermeasure, which diverts more sediment to the left side, is highly required. Detailed effectiveness and magnitude of this structure can be evaluated based on numerical simulation.

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An analysis of coastal erosion in the tropical rapid accretion delta of the Red River, Vietnam

Cited by 55 publications

References 13 publications

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

Where is the coast? Monitoring coastal land dynamics in Bangladesh: An integrated management approach using GIS and remote sensing techniques

Investigation of Morphological Change at the Cua Dai River Mouth Through Satellite Image Analysis

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