Perspectives on spatial representation of urban heat vulnerability

Karanja, Joseph; Kiage, Lawrence M.

doi:10.1016/j.scitotenv.2021.145634

Cited by 38 publications

(16 citation statements)

References 63 publications

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“…Despite the progress in the science of vulnerability, there is no systematic and consistent conceptual framework specifically for heat hazard [ 18 ]. There is a growing body of literature on heat vulnerability frameworks focusing on various components such as exposure, sensitivity, and adaptive capacity [ 18 , 19 , 20 , 21 ]. Heat vulnerability is how likely a person is to be injured or harmed during hot weather.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Heatwaves on Mortality and Morbidity and the Associated Vulnerability Factors: A Systematic Review

Arsad

Hod

Ahmad

et al. 2022

IJERPH

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Background: This study aims to investigate the current impacts of extreme temperature and heatwaves on human health in terms of both mortality and morbidity. This systematic review analyzed the impact of heatwaves on mortality, morbidity, and the associated vulnerability factors, focusing on the sensitivity component. Methods: This systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses 2020 flow checklist. Four databases (Scopus, Web of Science, EBSCOhost, PubMed) were searched for articles published from 2012 to 2022. Those eligible were evaluated using the Navigation Guide Systematic Review framework. Results: A total of 32 articles were included in the systematic review. Heatwave events increased mortality and morbidity incidence. Sociodemographic (elderly, children, male, female, low socioeconomic, low education), medical conditions (cardiopulmonary diseases, renal disease, diabetes, mental disease), and rural areas were crucial vulnerability factors. Conclusions: While mortality and morbidity are critical aspects for measuring the impact of heatwaves on human health, the sensitivity in the context of sociodemographic, medical conditions, and locality posed a higher vulnerability to certain groups. Therefore, further research on climate change and health impacts on vulnerability may help stakeholders strategize effective plans to reduce the effect of heatwaves.

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Section: Introductionmentioning

confidence: 99%

The Impact of Heatwaves on Mortality and Morbidity and the Associated Vulnerability Factors: A Systematic Review

Arsad

Hod

Ahmad

et al. 2022

IJERPH

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“…The vulnerability of a population to summer heat is characterized by the degree to which urban systems are affected by heat [ 14 ]. During a heat wave, the biophysical and social complexity of urban systems will affect the population’s vulnerability [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Compound Heat Vulnerability in the Record-Breaking Hot Summer of 2022 over the Yangtze River Delta Region

Jiang

2023

IJERPH

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Hourly meteorological data and multisource socioeconomic data collected in the Yangtze River Delta (YRD) region were used to analyze its heat vulnerability during the record-breaking hot summer of 2022 in both daytime and nighttime. Over forty consecutive days, daytime temperatures exceeded 40 °C, and 58.4% of the YRD region experienced 400 h with temperatures hotter than 26 °C during the nighttime. Only 7.5% of the YRD region was under low heat risk during both daytime and nighttime. Strong heat risk combined with strong heat sensitivity and weak heat adaptability led to strong heat vulnerability during both daytime and nighttime in most areas (72.6%). Inhomogeneity in heat sensitivity and heat adaptability further aggravated the heterogeneity of heat vulnerability, leading to compound heat vulnerability in most regions. The ratios of heat-vulnerable areas generated by multiple causes were 67.7% and 79.3% during daytime and nighttime, respectively. For Zhejiang and Shanghai, projects designed to decrease the urban heat island effect and lower the local heat sensitivity are most important. For Jiangsu and Anhui, measures aiming to decrease the urban heat island effect and improve heat adaptability are most important. It is urgent to take efficient measures to address heat vulnerability during both daytime and nighttime.

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“…Sensitivity refers to the degree to which a system is affected by climate-related stimuli, either negatively or positively, whereas adaptive capacity refers to a system's ability to adapt to climate change (including climate variability and extremes) in order to mitigate potential damage, capitalise on opportunities, or cope with the consequences [6]. As indicated by [7] that the heat vulnerability index (HVI) can be developed using spatial analysis using a Geographic Information System (GIS). Using census tracts, spatial patterns of heat vulnerability were mapped across the urban fabric.…”

Section: Introductionmentioning

confidence: 99%

The Exploratory Study of Normalized Indicator of Heat Vulnerability Index (HVI) By Using Functional Relationship

Latif,

Salleh,

Salim

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Extreme urban heat, a major environmental stressor caused by urbanisation, poses a substantial hazard to human health and well-being. The environmental, demographic, and health-related risk factors for heat stress must be identified as the urban population grows. As a result, this study provides insight into city people’ heat susceptibility and its extent at the district level. This examination was carried out using a multivariate index that included evaluations of the exposure, sensitivity, and coping ability components. Using nine indicators for three different characteristics, this study examined data on the spatial distribution from diverse sources such as satellite imaging processing and quantitative analysis output. This study employed a normalised indicator method that used functional relationships to normalise all of the indicators in the unit or a scale-free method. The index’s value of each parameter is then processed using weightage formula. Kuala Lumpur district has been rated as the most vulnerable to heat, followed by Petaling and Hulu Langat, according to the heat vulnerability index produced. The findings demonstrated a regional pattern of heat vulnerability, with significant differences between individual spatial indexes. While exposure and adaptive capacities have a distinct regional pattern, sensitivity has a more complicated spatial pattern. All factors were statistically significant as markers in the development of the heat vulnerability index, according to this study. In a highly dynamic metropolitan region, these criteria can be used for both urban planning and suggesting special strategies to reduce heat dangers.

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Perspectives on spatial representation of urban heat vulnerability

Cited by 38 publications

References 63 publications

The Impact of Heatwaves on Mortality and Morbidity and the Associated Vulnerability Factors: A Systematic Review

The Impact of Heatwaves on Mortality and Morbidity and the Associated Vulnerability Factors: A Systematic Review

Compound Heat Vulnerability in the Record-Breaking Hot Summer of 2022 over the Yangtze River Delta Region

The Exploratory Study of Normalized Indicator of Heat Vulnerability Index (HVI) By Using Functional Relationship

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