GIS-based methodology for erosion risk assessment of the muddy coast in the Yangtze Delta

Li, Xing; Zhou, Yunxuan; Tian, Bo; Kuang, Runyuan; Wang, Lihua

doi:10.1016/j.ocecoaman.2014.09.028

Cited by 25 publications

(12 citation statements)

References 38 publications

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“…The initial scientific use of "vulnerability" has its roots in geography and natural hazards research, but now this term is a central concept in a variety of research contexts related to natural impacts, such as salinity incursion, drought, bushfire, flooding and inundation, erosion and sedimentation, as well as social effects, such as poverty, famine, and landuse change (Füssel, 2007, Toan, 2014, Li et al, 2015. Adger (1999) and O'Brien and Leichenko (2001) indicate that vulnerability is not an outcome, but rather a state or condition of being, and a very dynamic one at that, moderated by existing inequities in resource distribution and access, the control individuals can exert over choices and opportunities, and historical patterns of social domination and marginalisation.…”

Section: The Conceptualization Of Vulnerabilitymentioning

confidence: 99%

Indicator-based assessment of climate-change impacts on coasts: A review of concepts, methodological approaches and vulnerability indices

Nguyen

Bonetti

Rogers

et al. 2016

Ocean & Coastal Management

254

104

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2016). Indicator-based assessment of climate-change impacts on coasts: a review of concepts, methodological approaches and vulnerability indices. Ocean and Coastal Management, Indicator-based assessment of climate-change impacts on coasts: a review of concepts, methodological approaches and vulnerability indices AbstractIncreasing human pressures on coastlines and associated threats posed by sea-level rise have stimulated development of a range of different concepts and methodological approaches to assess coastal vulnerability. The first section of this paper summarizes the concepts associated with vulnerability, natural hazards and climate change. The most widely adopted analytical approaches to vulnerability assessment are described, including spatial scales, the need for hybrid approaches comprising both biophysical and social dimensions of vulnerability, and the gradual incorporation of resilience aspects into such methodologies. In particular, the development and application of vulnerability indices is examined, based on a review of more than 50 studies that applied such indices across a range of hazards. The analytical procedures, proposed typologies, and most commonly selected variables are discussed. This overview demonstrates the breadth of vulnerability studies. This leads inevitably to lack of standardization of concepts and assumptions, which results in limited comparability between outputs for coasts from different areas. However, the widespread demand for vulnerability assessment as a component of decision-making in integrated management of the coast justifies pursuing indicator-based vulnerability assessments. In some cases these will explicitly adopt a consistent methodology that enables comparison between sites, whereas alternatively, metrics may be developed that are designed around particular system components and the site-specific functions for which they are valued. AbstractIncreasing human pressures on coastlines and associated threats posed by sea-level rise have stimulated development of a range of different concepts and methodological approaches to assess coastal vulnerability. The first section of this paper summarizes the concepts associated with vulnerability, natural hazards and climate change. The most widely adopted analytical approaches to vulnerability assessment are described, including spatial scales, the need for hybrid approaches comprising both biophysical and social dimensions of vulnerability, and the gradual incorporation of resilience aspects into such methodologies. In particular, the development and application of vulnerability indices is examined, based on a review of more than 50 studies that applied such indices across a range of hazards. The analytical procedures, proposed typologies, and most commonly selected variables are discussed. This overview demonstrates the breadth of vulnerability studies. This leads inevitably to lack of standardization of concepts and assumptions, which results in limited comparability between outputs for coasts from different areas. H...

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Section: The Conceptualization Of Vulnerabilitymentioning

confidence: 99%

Indicator-based assessment of climate-change impacts on coasts: A review of concepts, methodological approaches and vulnerability indices

Nguyen

Bonetti

Rogers

et al. 2016

Ocean & Coastal Management

254

104

View full text Add to dashboard Cite

show abstract

“…However, some related studies have been implemented in the Caribbean [36] and Colombia [50,56]. The differences between some authors [22,24,56] lie not only in the use of different indices, GIS methods (e.g., Fuzzy), and models, but also in the minimum spatial units of analysis, some using homogeneous lines or areas. This study combines areas with a grid.…”

Section: Discussionmentioning

confidence: 99%

Validation of the Hazard and Vulnerability Analysis of Coastal Erosion in the Caribbean and Pacific Coast of Colombia

Coca

Ricaurte-Villota

2019

JMSE

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A hazard and vulnerability assessment of coastal erosion is an essential first step for planning and decision-making, because it is part of risk management and its results are in the form of easily interpreted traffic-light maps. For the analysis of the assessment in this work, a methodology is proposed which considers three components for both hazard (magnitude, occurrence, and susceptibility) and vulnerability (exposure, fragility, and lack of resilience), through a semi-quantitative approximation, by applying relative indices to different variables. This methodology has been adapted to analyze hazards and vulnerability caused by coastal erosion combining physical and social aspects. For the validation of this methodology, Spratt Bight Beach (Colombian Caribbean) and La Bocana beach (Colombian Pacific) were selected in order to have contrasting regions and to validate the application of the method over a geographical range. One of the most significant outcomes of the assessment of the degree of hazard and vulnerability is that the rating may represent different combinations of factors. It is therefore important to study and interpret the components separately, allowing us to propose corrective and/or prospective focused interventions at local and regional levels. In terms of vulnerability, the assessment highlighted the importance of cultural ecology as a factor of resilience to coastal hazards.

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“…(2) Coastal elevation and slope: Areas at higher elevation are less likely to be eroded by inundation [64], and areas with higher slopes are less vulnerable to erosion caused by inundation [6,21,30,57,65]. ArcGIS (Geographic Information System) is used to extract the average elevation and average slope of the evaluation unit from the GDEMV2.…”

Section: Calculation and Classification Of Indexesmentioning

confidence: 99%

Coastal Vulnerability to Erosion Using a Multi-Criteria Index: A Case Study of the Xiamen Coast

et al. 2018

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The assessment of coastal vulnerability to erosion is urgently needed due to increasing coastal erosion globally. Based on the coastal characteristics of the Xiamen artificial coastline, which accounts for more than 80% of the coastline in this area, this study provides an integrated approach based on a multi-criteria index. The evaluation index system of the local coastal vulnerability to the erosion of Xiamen includes 12 indexes based on natural (coastal characteristics, coastal forcing), and socio-economic factors (coastal infrastructure, disaster reduction). The spatial differentiation characteristics of the coastal vulnerability to erosion along the Xiamen coast (2018) have been quantitatively assessed with the aid of GIS (Geographic Information System) and RS (Remote Sensing) technology. The results show that the very high vulnerability, high vulnerability, medium vulnerability, low vulnerability and very low vulnerability areas of coastal erosion accounted for 4.6%, 30.5%, 51.6%, 12.5% and 0.8% of the Xiamen coast, respectively. The coastal vulnerability to erosion classes of artificial coasts is significantly higher than those of natural coasts. This difference is mainly controlled by the coastal slope and coastal buffer ability. The results of the evaluation are basically consistent with the present situation. The rationality of the index system and the applicability of the theoretical method are well explained. The evaluation model constructed in this study can be extended to other areas with high ratios of artificial coasts.

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GIS-based methodology for erosion risk assessment of the muddy coast in the Yangtze Delta

Cited by 25 publications

References 38 publications

Indicator-based assessment of climate-change impacts on coasts: A review of concepts, methodological approaches and vulnerability indices

Indicator-based assessment of climate-change impacts on coasts: A review of concepts, methodological approaches and vulnerability indices

Validation of the Hazard and Vulnerability Analysis of Coastal Erosion in the Caribbean and Pacific Coast of Colombia

Coastal Vulnerability to Erosion Using a Multi-Criteria Index: A Case Study of the Xiamen Coast

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