Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong

Chinmayee Mallick; Yang Yang

doi:doi:10.11648/j.larp.20230801.12

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Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong

Chinmayee Mallick, Yang Yang

Published in Landscape Architecture and Regional Planning (Volume 8, Issue 1)

Received: 23 November 2022 Accepted: 14 December 2022 Published: 30 January 2023

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Abstract

In recent years, thermal inequity research has received mounting interest amongst researchers worldwide. The present study aims to conduct a spatiotemporal analysis of thermal inequity in Hong Kong in 2006 and 2016. In this process, the identification of land surface temperature (LST) hotspots and their association with normalised differential vegetation index (NDVI), normalised differential built-up index (NDBI) and social vulnerability index (SoVI) clusters were examined using local Moran’s I spatial autocorrelation. Results show that an increase in the number of LST hotspots from 2006 to 2016 represented the worsening thermal inequity situation in Hong Kong. The low NDVI and high NDBI clusters were respectively discovered in the LST hotspots located in Kowloon and Kwai Tsing. Furthermore, the areas with high LST and high SoVI, represented as the heat vulnerable zones, expanded in the New Territory from 2006 to 2016 but downscaled in Kowloon. Some District Constituency Assembly Areas (DCCAs) in Nam Cheong were found with attributes of high LST, high NDBI, low NDVI and high SoVI in 2006 and 2016. This study concludes that thermal inequity varies spatiotemporally. Recommendations indicate that the socially vulnerable groups in Nam Cheong should be given the highest priority to implement urban heat mitigation and adaptation strategies. The findings will help policymakers to develop and implement proper policies to alleviate thermal inequity in Hong Kong.

Published in	Landscape Architecture and Regional Planning (Volume 8, Issue 1)
DOI	10.11648/j.larp.20230801.12
Page(s)	9-31
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2023. Published by Science Publishing Group

Keywords

Urban Heat, Heat Vulnerability, Built Environment, Local Moran’s I

References

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Chinmayee Mallick, Yang Yang. (2023). Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landscape Architecture and Regional Planning, 8(1), 9-31. https://doi.org/10.11648/j.larp.20230801.12

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Chinmayee Mallick; Yang Yang. Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landsc. Archit. Reg. Plan. 2023, 8(1), 9-31. doi: 10.11648/j.larp.20230801.12

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Chinmayee Mallick, Yang Yang. Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landsc Archit Reg Plan. 2023;8(1):9-31. doi: 10.11648/j.larp.20230801.12

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@article{10.11648/j.larp.20230801.12,
  author = {Chinmayee Mallick and Yang Yang},
  title = {Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong},
  journal = {Landscape Architecture and Regional Planning},
  volume = {8},
  number = {1},
  pages = {9-31},
  doi = {10.11648/j.larp.20230801.12},
  url = {https://doi.org/10.11648/j.larp.20230801.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.larp.20230801.12},
  abstract = {In recent years, thermal inequity research has received mounting interest amongst researchers worldwide. The present study aims to conduct a spatiotemporal analysis of thermal inequity in Hong Kong in 2006 and 2016. In this process, the identification of land surface temperature (LST) hotspots and their association with normalised differential vegetation index (NDVI), normalised differential built-up index (NDBI) and social vulnerability index (SoVI) clusters were examined using local Moran’s I spatial autocorrelation. Results show that an increase in the number of LST hotspots from 2006 to 2016 represented the worsening thermal inequity situation in Hong Kong. The low NDVI and high NDBI clusters were respectively discovered in the LST hotspots located in Kowloon and Kwai Tsing. Furthermore, the areas with high LST and high SoVI, represented as the heat vulnerable zones, expanded in the New Territory from 2006 to 2016 but downscaled in Kowloon. Some District Constituency Assembly Areas (DCCAs) in Nam Cheong were found with attributes of high LST, high NDBI, low NDVI and high SoVI in 2006 and 2016. This study concludes that thermal inequity varies spatiotemporally. Recommendations indicate that the socially vulnerable groups in Nam Cheong should be given the highest priority to implement urban heat mitigation and adaptation strategies. The findings will help policymakers to develop and implement proper policies to alleviate thermal inequity in Hong Kong.},
 year = {2023}
}

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TY  - JOUR
T1  - Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong
AU  - Chinmayee Mallick
AU  - Yang Yang
Y1  - 2023/01/30
PY  - 2023
N1  - https://doi.org/10.11648/j.larp.20230801.12
DO  - 10.11648/j.larp.20230801.12
T2  - Landscape Architecture and Regional Planning
JF  - Landscape Architecture and Regional Planning
JO  - Landscape Architecture and Regional Planning
SP  - 9
EP  - 31
PB  - Science Publishing Group
SN  - 2637-4374
UR  - https://doi.org/10.11648/j.larp.20230801.12
AB  - In recent years, thermal inequity research has received mounting interest amongst researchers worldwide. The present study aims to conduct a spatiotemporal analysis of thermal inequity in Hong Kong in 2006 and 2016. In this process, the identification of land surface temperature (LST) hotspots and their association with normalised differential vegetation index (NDVI), normalised differential built-up index (NDBI) and social vulnerability index (SoVI) clusters were examined using local Moran’s I spatial autocorrelation. Results show that an increase in the number of LST hotspots from 2006 to 2016 represented the worsening thermal inequity situation in Hong Kong. The low NDVI and high NDBI clusters were respectively discovered in the LST hotspots located in Kowloon and Kwai Tsing. Furthermore, the areas with high LST and high SoVI, represented as the heat vulnerable zones, expanded in the New Territory from 2006 to 2016 but downscaled in Kowloon. Some District Constituency Assembly Areas (DCCAs) in Nam Cheong were found with attributes of high LST, high NDBI, low NDVI and high SoVI in 2006 and 2016. This study concludes that thermal inequity varies spatiotemporally. Recommendations indicate that the socially vulnerable groups in Nam Cheong should be given the highest priority to implement urban heat mitigation and adaptation strategies. The findings will help policymakers to develop and implement proper policies to alleviate thermal inequity in Hong Kong.
VL  - 8
IS  - 1
ER  -

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Author Information

Chinmayee Mallick

Department of Geography and Resource Management, The Chinese University of Hong Kong, Shatin, Hong Kong
Yang Yang

Department of Building and Real Estate, The Hong Kong Polytechnic University, Hung Hom, Hong Kong

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Chinmayee Mallick, Yang Yang. (2023). Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landscape Architecture and Regional Planning, 8(1), 9-31. https://doi.org/10.11648/j.larp.20230801.12

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Chinmayee Mallick; Yang Yang. Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landsc. Archit. Reg. Plan. 2023, 8(1), 9-31. doi: 10.11648/j.larp.20230801.12

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Chinmayee Mallick, Yang Yang. Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong. Landsc Archit Reg Plan. 2023;8(1):9-31. doi: 10.11648/j.larp.20230801.12

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@article{10.11648/j.larp.20230801.12,
  author = {Chinmayee Mallick and Yang Yang},
  title = {Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong},
  journal = {Landscape Architecture and Regional Planning},
  volume = {8},
  number = {1},
  pages = {9-31},
  doi = {10.11648/j.larp.20230801.12},
  url = {https://doi.org/10.11648/j.larp.20230801.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.larp.20230801.12},
  abstract = {In recent years, thermal inequity research has received mounting interest amongst researchers worldwide. The present study aims to conduct a spatiotemporal analysis of thermal inequity in Hong Kong in 2006 and 2016. In this process, the identification of land surface temperature (LST) hotspots and their association with normalised differential vegetation index (NDVI), normalised differential built-up index (NDBI) and social vulnerability index (SoVI) clusters were examined using local Moran’s I spatial autocorrelation. Results show that an increase in the number of LST hotspots from 2006 to 2016 represented the worsening thermal inequity situation in Hong Kong. The low NDVI and high NDBI clusters were respectively discovered in the LST hotspots located in Kowloon and Kwai Tsing. Furthermore, the areas with high LST and high SoVI, represented as the heat vulnerable zones, expanded in the New Territory from 2006 to 2016 but downscaled in Kowloon. Some District Constituency Assembly Areas (DCCAs) in Nam Cheong were found with attributes of high LST, high NDBI, low NDVI and high SoVI in 2006 and 2016. This study concludes that thermal inequity varies spatiotemporally. Recommendations indicate that the socially vulnerable groups in Nam Cheong should be given the highest priority to implement urban heat mitigation and adaptation strategies. The findings will help policymakers to develop and implement proper policies to alleviate thermal inequity in Hong Kong.},
 year = {2023}
}

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TY  - JOUR
T1  - Spatiotemporal Analysis of Thermal Inequity: A Case Study of Hong Kong
AU  - Chinmayee Mallick
AU  - Yang Yang
Y1  - 2023/01/30
PY  - 2023
N1  - https://doi.org/10.11648/j.larp.20230801.12
DO  - 10.11648/j.larp.20230801.12
T2  - Landscape Architecture and Regional Planning
JF  - Landscape Architecture and Regional Planning
JO  - Landscape Architecture and Regional Planning
SP  - 9
EP  - 31
PB  - Science Publishing Group
SN  - 2637-4374
UR  - https://doi.org/10.11648/j.larp.20230801.12
AB  - In recent years, thermal inequity research has received mounting interest amongst researchers worldwide. The present study aims to conduct a spatiotemporal analysis of thermal inequity in Hong Kong in 2006 and 2016. In this process, the identification of land surface temperature (LST) hotspots and their association with normalised differential vegetation index (NDVI), normalised differential built-up index (NDBI) and social vulnerability index (SoVI) clusters were examined using local Moran’s I spatial autocorrelation. Results show that an increase in the number of LST hotspots from 2006 to 2016 represented the worsening thermal inequity situation in Hong Kong. The low NDVI and high NDBI clusters were respectively discovered in the LST hotspots located in Kowloon and Kwai Tsing. Furthermore, the areas with high LST and high SoVI, represented as the heat vulnerable zones, expanded in the New Territory from 2006 to 2016 but downscaled in Kowloon. Some District Constituency Assembly Areas (DCCAs) in Nam Cheong were found with attributes of high LST, high NDBI, low NDVI and high SoVI in 2006 and 2016. This study concludes that thermal inequity varies spatiotemporally. Recommendations indicate that the socially vulnerable groups in Nam Cheong should be given the highest priority to implement urban heat mitigation and adaptation strategies. The findings will help policymakers to develop and implement proper policies to alleviate thermal inequity in Hong Kong.
VL  - 8
IS  - 1
ER  -

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