The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather
Mortality attributable to extreme hot weather is a growing concern in many urban environments, and spatial heat vulnerability indexes are often used to identify areas at relatively higher and lower risk. Three indexes were developed for greater Vancouver, Canada using a pool of 20 potentially predic...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-12-01
|
| Series: | Environment International |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0160412017312394 |
| _version_ | 1819115768294408192 |
|---|---|
| author | Nikolas Krstic Weiran Yuchi Hung Chak Ho Blake B. Walker Anders J. Knudby Sarah B. Henderson |
| author_facet | Nikolas Krstic Weiran Yuchi Hung Chak Ho Blake B. Walker Anders J. Knudby Sarah B. Henderson |
| author_sort | Nikolas Krstic |
| collection | DOAJ |
| description | Mortality attributable to extreme hot weather is a growing concern in many urban environments, and spatial heat vulnerability indexes are often used to identify areas at relatively higher and lower risk. Three indexes were developed for greater Vancouver, Canada using a pool of 20 potentially predictive variables categorized to reflect social vulnerability, population density, temperature exposure, and urban form. One variable was chosen from each category: an existing deprivation index, senior population density, apparent temperature, and road density, respectively. The three indexes were constructed from these variables using (1) unweighted, (2) weighted, and (3) data-driven Heat Exposure Integrated Deprivation Index (HEIDI) approaches. The performance of each index was assessed using mortality data from 1998–2014, and the maps were compared with respect to spatial patterns identified. The population-weighted spatial correlation between the three indexes ranged from 0.68–0.89. The HEIDI approach produced a graduated map of vulnerability, whereas the other approaches primarily identified areas of highest risk. All indexes performed best under extreme temperatures, but HEIDI was more useful at lower thresholds. Each of the indexes in isolation provides valuable information for public health protection, but combining the HEIDI approach with unweighted and weighted methods provides richer information about areas most vulnerable to heat. Keywords: Heat vulnerability index, Hot weather mortality, Case-crossover analysis, Spatial mapping, Index performance, Public health |
| first_indexed | 2024-12-22T05:06:26Z |
| format | Article |
| id | doaj.art-37fb791ac867466aa3d008350131a84e |
| institution | Directory Open Access Journal |
| issn | 0160-4120 |
| language | English |
| last_indexed | 2024-12-22T05:06:26Z |
| publishDate | 2017-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environment International |
| spelling | doaj.art-37fb791ac867466aa3d008350131a84e2022-12-21T18:38:06ZengElsevierEnvironment International0160-41202017-12-011094252The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weatherNikolas Krstic0Weiran Yuchi1Hung Chak Ho2Blake B. Walker3Anders J. Knudby4Sarah B. Henderson5Environmental Health Services, British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, CanadaEnvironmental Health Services, British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, CanadaDepartment of Land Surveying and Geo-informatics, Hong Kong Polytechnic University, 181 Chatham Road South, Kowloon, Hong KongGeographisches Institut, Universität Humboldt zu Berlin, Unter den Linden 6, 10099 Berlin, GermanyDepartment of Geography, Environment and Geomatics, University of Ottawa, 60 University Private, Ottawa, ON K1N 6N5, CanadaEnvironmental Health Services, British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, Canada; School of Population and Public Health, University of British Columbia, 2206 East Mall, 3rd Floor, Vancouver, BC V6T 1Z3, Canada; Corresponding author at: Environmental Health Services, British Columbia Centre for Disease Control, 655 West 12th Avenue, Vancouver, BC V5Z 4R4, Canada.Mortality attributable to extreme hot weather is a growing concern in many urban environments, and spatial heat vulnerability indexes are often used to identify areas at relatively higher and lower risk. Three indexes were developed for greater Vancouver, Canada using a pool of 20 potentially predictive variables categorized to reflect social vulnerability, population density, temperature exposure, and urban form. One variable was chosen from each category: an existing deprivation index, senior population density, apparent temperature, and road density, respectively. The three indexes were constructed from these variables using (1) unweighted, (2) weighted, and (3) data-driven Heat Exposure Integrated Deprivation Index (HEIDI) approaches. The performance of each index was assessed using mortality data from 1998–2014, and the maps were compared with respect to spatial patterns identified. The population-weighted spatial correlation between the three indexes ranged from 0.68–0.89. The HEIDI approach produced a graduated map of vulnerability, whereas the other approaches primarily identified areas of highest risk. All indexes performed best under extreme temperatures, but HEIDI was more useful at lower thresholds. Each of the indexes in isolation provides valuable information for public health protection, but combining the HEIDI approach with unweighted and weighted methods provides richer information about areas most vulnerable to heat. Keywords: Heat vulnerability index, Hot weather mortality, Case-crossover analysis, Spatial mapping, Index performance, Public healthhttp://www.sciencedirect.com/science/article/pii/S0160412017312394 |
| spellingShingle | Nikolas Krstic Weiran Yuchi Hung Chak Ho Blake B. Walker Anders J. Knudby Sarah B. Henderson The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather Environment International |
| title | The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather |
| title_full | The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather |
| title_fullStr | The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather |
| title_full_unstemmed | The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather |
| title_short | The Heat Exposure Integrated Deprivation Index (HEIDI): A data-driven approach to quantifying neighborhood risk during extreme hot weather |
| title_sort | heat exposure integrated deprivation index heidi a data driven approach to quantifying neighborhood risk during extreme hot weather |
| url | http://www.sciencedirect.com/science/article/pii/S0160412017312394 |
| work_keys_str_mv | AT nikolaskrstic theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT weiranyuchi theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT hungchakho theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT blakebwalker theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT andersjknudby theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT sarahbhenderson theheatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT nikolaskrstic heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT weiranyuchi heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT hungchakho heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT blakebwalker heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT andersjknudby heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather AT sarahbhenderson heatexposureintegrateddeprivationindexheidiadatadrivenapproachtoquantifyingneighborhoodriskduringextremehotweather |