scholarly journals Comparative Analysis of Flood Vulnerability Indicators by Aggregation Frameworks for the IPCC’s Assessment Components to Climate Change

2019 ◽  
Vol 9 (11) ◽  
pp. 2321 ◽  
Author(s):  
Jong Seok Lee ◽  
Hyun Il Choi

As severe flood damages have been increasing due to climate change, the flood vulnerability assessment is needed in the flood mitigation plans to cope with climate-related flood disasters. Since the Intergovernmental Panel on Climate Change Third Assessment Report (IPCC TAR) presented the three assessment components, such as exposure, sensitivity, and adaptability for the vulnerability to climate change, several aggregation frameworks have been used to compile individual components into the composite indicators to measure the flood vulnerability. It is therefore necessary to select an appropriate aggregation framework for the flood vulnerability assessments because the aggregation frameworks can have a large influence on the composite indicator outcomes. For a comparative analysis of flood vulnerability indicators across different aggregation frameworks for the IPCC’s assessment components, the composite indicators are derived by four representative types of aggregation frameworks with all the same proxy variable set in the Republic of Korea. It is found in the study site that there is a key driver component of the composite indicator outcomes and the flood vulnerability outcomes largely depend on whether the key component is treated independently or dependently in each aggregation framework. It is concluded that the selection of an aggregation framework can be based on the correlation and causality analysis to determine the relative contribution of the assessment components to the overall performance of the composite indicators across different aggregation frameworks.

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hyun Il Choi

AbstractThe IPCC Third Assessment Report presents a conceptual framework for vulnerability to climate change with the three attribute components of exposure, sensitivity, and coping. Since the vulnerability assessments have been conducted mainly by the composite indicators aggregated from the IPCC’s components, it is necessary to assess aggregation frameworks for constructing the composite indicators that have an influence on vulnerability assessment outcomes. This study therefore investigates the robustness of assessment outcomes for flood vulnerability to climate change through a comparative analysis of the six vulnerability indicators aggregated from the IPCC’s components by the conventional aggregation frameworks. The comparative analysis has been illustrated through both the possible combinations of reference values for vulnerability attribute components and a case study on the flood vulnerability assessment to climate change for coastal areas in the Republic of Korea. The study demonstrates that there can be large fluctuations and reversals in ranking orders across the six vulnerability outcomes by different aggregation frameworks. It concludes that for flood vulnerability assessment to climate change in coastal areas, the vulnerability indicator needs to be aggregated by a multiplicative utility function from all the three assessment components with positive elasticity to vulnerability.


2021 ◽  
Author(s):  
◽  
Holly Mansfield

<p>Discourses of vulnerability abound in climate change literature; both particular types of places and particular groups of people are routinely considered especially vulnerable to the effects of climate change. Such discourses are employed by the international community in a technical manner—attempting to categorise current and expected degrees of impact on places and populations—and also to support the advocacy of urgent action to respond to climate change. This thesis examines the manner in which discourses of vulnerability are being invoked in discussions about the impacts of climate change and considers what impact this has on the people and places that are being described in this way. This research focuses specifically on Kiribati and I-Kiribati women and explores, in particular, how the debate about forced migration (as a possible outcome of climate change) has been shaped by vulnerability discourses. Both Kiribati, as a specific type of geographical entity, and women, as a category of people, have been described as having extreme vulnerability to climate change. It is not new for either Pacific Islands or women to be framed as “vulnerable”; however with the increased attention to climate change, vulnerability discourses are being used with such frequency that it is virtually impossible to find literature on the Pacific and women that does not reference their vulnerability. The use of such an emotive term raises questions. Who is naming and claiming vulnerability? What impact does such language have on those that are portrayed in this way? And, what are the long-term consequences of such terminology being used? Interesting questions are also raised regarding discursive similarities between presentations of vulnerable women and vulnerable islands. This thesis addresses these questions by analysing international literature on climate change and forced migration—especially that produced by the Intergovernmental Panel on Climate Change (IPCC)—between 1990 and 2007, and contrasting this with close analysis of public discourse from two vocal I-Kiribati advocates, Pelenise Alofa and Maria Tiimon, from 2009 to 2011. Conclusions are drawn from this analysis regarding the power relationships embedded in discourse, and the possible ramifications of language use for the construction of policy.</p>


Author(s):  
Thu Hong Anh Nguyen ◽  
Huyen Khon Nguyen ◽  
Le Quoc Vy ◽  
Tran Thi Hieu ◽  
Tran Trung Kien ◽  
...  

Aquaculture - belonging to the Fisheries group - is one of the high-value economic sectors, accounting for a large part in the structure of the agriculture, forestry and fishery industry in Vietnam. However, the sustainability of this industry is facing many challenges due to climate change process; An Giang is a province that has long had a strong position in aquaculture in Vietnam and is not out of that influence. Therefore, there is an urgent need to assess climate change vulnerability of aquaculture in An Giang based on the predicted changes in temperature and rainfall of the region according to the change scenarios. climate. Unlike previous studies conducted mainly on a national scale, this paper is mainly concerned with Pangasius (Pangasius is one of the aquatic species with high commercial value, with significant contribution). including livelihoods of people in An Giang province) - species raised in the main production areas of An Giang and assess their vulnerability for each area, using an index-based method and Intergovernmental Panel on Climate Change Definition of Vulnerability to overcome constraints in developing specific adaptation strategies at regional scale. First, for each exposure, sensitivity and adaptability, specific and appropriate indicators are chosen. These indicators are then estimated and weighted to analyze vulnerability to climate change. The results show that the level of vulnerability due to climate change to the pangasius farming industry in An Giang province is at a moderate level, of which Chau Phu district is highly vulnerable because the district has the main livelihood of Pangasius farming.


2021 ◽  
Vol 4 (3) ◽  
pp. 147-163
Author(s):  
Kapil Dhungana ◽  
Harish Bahadur Chand ◽  
Dinesh Bhandari ◽  
Abhishek Kumar ◽  
Sanjay Singh ◽  
...  

The current study uses the livelihood vulnerability index (LVI) and the Intergovernmental Panel on Climate Change livelihood vulnerability index (IPCC-LVI) approaches to assess household’s livelihood vulnerability in the Dipang watershed located in the Central Himalayan region of Nepal. Primary data was collected through various participatory rural appraisal (PRA) tools such as direct observation, key informant interviews (KIIs), focus group discussions (FGDs) and household surveys. Similarly, data on climatic variables were collected from the nearby meteorological station over 30 years (1987-2018). The mean annual average temperature increased by 0.036°C while the average rainfall decreased by 2.30 mm. Respondents perceived a similar trend of rising temperatures, decreasing rainfall intensity, dryness in the atmosphere, and dwindling water sources. The overall LVI score (0.416) indicated that the households are vulnerable to climate change. Food (0.642) and natural disasters and climate variability (0.566) were the most vulnerable among all contributing factors. Similarly, the overall LVI-IPCC score (0.104) indicated that the households were moderately vulnerable due to high exposure (0.566), sensitivity (0.448), and low adaptive capacity (0.334). The study findings suggest an urgent need to reduce high exposure to climate risks, improved livelihood strategies, and boost agricultural productivity and health in the watershed area.


2017 ◽  
pp. 1393-1416
Author(s):  
Sibananda Senapati ◽  
Vijaya Gupta

This paper is based on a detail review of literature available in the area of climate change, vulnerability and impact assessment. Methodological issues pertaining to vulnerability like; development of vulnerability indicators, process of indicator selection etc are the main focus in this paper. As discussed indicators are more acceptable, easy to understand and help in comparing across regions. However, indicators also possess a number of limitations. There are issues in selecting indicators and how to aggregate their values. The current study tries to overcome those issues through a primary study. The study region is Mumbai, India and ‘Koli' fishing communities reside in the city. The socio-economic implications of climate change and vulnerability of communities depending on fishery are estimated by developing vulnerability indicators using Sustainable Livelihood Approach (SLA), and Analytic Hierarchy Process (AHP). Further experts opinions are considered while selecting indicators. Vulnerability indicators are derived from literature and validated through experts' opinion. Experts are chosen from higher learning institutes in the city. In the climate change literature vulnerability mainly divided into exposure, sensitivity and adaptive capacity. The indicators of sensitivity and exposure under vulnerability are combined here and categorized into two: livelihood and perceived changes. Similarly the indicators of adaptive capacity are of five categories comprising human, physical, financial, social and government policy related indicators. Thus a total 30 indicators are selected. Among five fishing villages surveyed, fishermen from Madh and Worli are found more vulnerable because of their high sensitivity and low adaptive capacity. The derived vulnerability scores are further compared and analyzed against the scores derived from experts. The overall result shows the experts value of indicators are similar with the indicator score derived in the study using simple aggregate method. This study further provides policy implications for reducing vulnerability of fishing villages.


2014 ◽  
Vol 16 (03) ◽  
pp. 1450024 ◽  
Author(s):  
MD ABOUL FAZAL YOUNUS

This paper reviews recent literature on flood research in Bangladesh, focusing on the nation's vulnerability to climate change and its ability to adapt. This review reveals that the literature on community-based vulnerability and adaptation, and their processes and assessments in response to hazards under climate change regimes are inadequate, apart from a recent focus on assessment of the vulnerability of rural communities, their ability to adapt their farming methods, or the economic consequences of failure to adapt in response to extreme flood events, e.g. Younus (2012a,b); Younus and Harvey (2013, 2014). This paper argues that an integrated assessment of rural vulnerability and community-based adaptation is needed in order to ensure sustainable changes in response to future climate change regimes in Bangladesh.


2021 ◽  
Author(s):  
◽  
Holly Mansfield

<p>Discourses of vulnerability abound in climate change literature; both particular types of places and particular groups of people are routinely considered especially vulnerable to the effects of climate change. Such discourses are employed by the international community in a technical manner—attempting to categorise current and expected degrees of impact on places and populations—and also to support the advocacy of urgent action to respond to climate change. This thesis examines the manner in which discourses of vulnerability are being invoked in discussions about the impacts of climate change and considers what impact this has on the people and places that are being described in this way. This research focuses specifically on Kiribati and I-Kiribati women and explores, in particular, how the debate about forced migration (as a possible outcome of climate change) has been shaped by vulnerability discourses. Both Kiribati, as a specific type of geographical entity, and women, as a category of people, have been described as having extreme vulnerability to climate change. It is not new for either Pacific Islands or women to be framed as “vulnerable”; however with the increased attention to climate change, vulnerability discourses are being used with such frequency that it is virtually impossible to find literature on the Pacific and women that does not reference their vulnerability. The use of such an emotive term raises questions. Who is naming and claiming vulnerability? What impact does such language have on those that are portrayed in this way? And, what are the long-term consequences of such terminology being used? Interesting questions are also raised regarding discursive similarities between presentations of vulnerable women and vulnerable islands. This thesis addresses these questions by analysing international literature on climate change and forced migration—especially that produced by the Intergovernmental Panel on Climate Change (IPCC)—between 1990 and 2007, and contrasting this with close analysis of public discourse from two vocal I-Kiribati advocates, Pelenise Alofa and Maria Tiimon, from 2009 to 2011. Conclusions are drawn from this analysis regarding the power relationships embedded in discourse, and the possible ramifications of language use for the construction of policy.</p>


Author(s):  
Jude Nwafor Eze ◽  
Umar Aliyu ◽  
Abdulmalik Alhaji-Baba ◽  
Muhammad Alfa

This research evaluates the farmers’ vulnerability to climate change in Niger State. Strategies for reducing the effect of climate change have regularly been made without experimental foundations and adequate information on farmers’ vulnerability to climate change in the study area. Thus, integrated farmers’ vulnerability assessment approach was employed by classifying socioeconomic and biophysical indicators of vulnerability into adaptive capacity, sensitivity and exposure to determine the farmers’ vulnerability to climate change. This is based on the Intergovernmental Panel on Climate Change’s definition of vulnerability. The study adopted a survey design and the method utilized for the study was questionnaire administered to 400 households in the study area. The results indicate that the farmers’ vulnerability was low in zone A with a mean index of 2.86, very low in zone B with a mean index of 3.74, and high in zone C with a mean index of 1.95 (the higher the value of the index the lower the vulnerability of farmers). It is recommended that measures should be taken to integrate climate change adaptation into Niger State development process. These measures should include improvement in adoption of good agricultural practices (GAP).


2021 ◽  
Vol 13 (18) ◽  
pp. 10023
Author(s):  
Liboster Mwadzingeni ◽  
Raymond Mugandani ◽  
Paramu L. Mafongoya

Globally, climate change poses enormous threats to the livelihoods of rural communities in arid and semi-arid regions. Assessing the extent of vulnerability is critical to identify climate hot spots and develop appropriate adaptation policies and strategies. This paper uses the Livelihood Vulnerability Index (LVI) and the Livelihood Vulnerability Index—Intergovernmental Panel on Climate Change (LVI-IPCC) to compare vulnerability to climate change in the Exchange, Insukamini, and Ruchanyu smallholder irrigation schemes (SISs) in the Midlands Province of Zimbabwe. A questionnaire was used to collect data from a sample of 317 randomly selected households. Results show higher exposure and sensitivity to climate change in the Insukamini irrigation scheme despite the higher adaptive capacity. Both LVI and LVI-IPCC show that households in Insukamini irrigation scheme are more vulnerable to climate change than in Exchange and Ruchanyu irrigation schemes, attributed to water insecurity, poor social networks, and natural disasters and climate variability. The study recommends that development and investment in Insukamini and Ruchanyu should prioritize improving social networks while Exchange should primarily focus on improving livelihood strategies. Using the LVI-IPCC framework is a key methodology for understanding the vulnerability of communities in SISs and identifying areas that need prime development and investment. These results have implications on implementing investments and livelihood policies in SISs of Zimbabwe.


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