Evaluation of urban heat islands using local climate zones and the influence of sea-land breeze

Xilin Zhou, Tsubasa Okaze, Chao Ren, Meng Cai, Yasuyuki Ishida, Hironori Watanabe, Akashi Mochida

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The Local Climate Zone (LCZ) scheme is an urban form and land cover/land use classification system used to study urban heat islands (UHIs). Many studies have evaluated the relationship between LCZs and air temperature. While the intensity and spatial pattern of an UHI can be influenced by the land-sea breeze, especially in coastal cities, few studies have been done to examine this using the LCZ scheme. In this study, Sendai, Japan, has been selected as a case study to evaluate whether the LCZ scheme can be used to study UHIs that are exposed to sea-land breeze since it has two urban-rural areas: mountain side and coastal side. UHI analysis was based on LCZ classes with GIS-derived geometric and land cover properties. By dividing Sendai into two regions along its urban center, the mitigating effects of sea-land breeze on the magnitudes of UHIs in each urban-rural area were demonstrated. Based on the results of this study, two specific UHI mitigation strategies were proposed for Sendai. This study confirmed that the LCZ scheme can be used by urban planners to assess both surface UHI (SUHI) and UHI effects, and proposed a feasible process for developing targeted UHI mitigation strategies.

Original languageEnglish
Article number102060
JournalSustainable Cities and Society
Volume55
DOIs
Publication statusPublished - 2020 Apr

Keywords

  • Air temperature
  • Geographic information system (GIS)
  • Land surface temperature (LST)
  • Local climate zone
  • Sea-land breeze
  • Urban heat island (UHI)

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Transportation

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