Effect of green spaces on urban heat distribution using satellite imagery

Hyunah Choi, Woo-Kyun Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Urbanization has transformed the spatial pattern of urban land use by reducing green spaces. An increase of air temperature directly affects forest vegetation, phenology, and biodiversity in urban areas. In this paper, we analyzed the characterization of changing patterns and Urban Heat Distribution (UHD) in Seoul, based on a spatio-temporal assessment. It is necessary to understand green spaces changes, and this understanding is essential for monitoring and assessing green spaces functions. In addition we estimated the effect of green space on urban temperature using Landsat 7 ETM+ imagery and climatic data. Results of the assessment showed that UHD creates differences in the spatial and temporal extent of temperature reducing effects due to differences in urban green space. The ratio of urban heat area decreases rapidly from green space boundary. And it shows that the urban green space plays an important role for mitigating urban heating in central areas. This study demonstrated the importance of green spaces by characterizing the spatio-temporal variations of urban green spaces in cities.

Original languageEnglish
Title of host publication32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Pages2286-2289
Number of pages4
Volume4
Publication statusPublished - 2011 Dec 1
Event32nd Asian Conference on Remote Sensing 2011, ACRS 2011 - Tapei, Taiwan, Province of China
Duration: 2011 Oct 32011 Oct 7

Other

Other32nd Asian Conference on Remote Sensing 2011, ACRS 2011
CountryTaiwan, Province of China
CityTapei
Period11/10/311/10/7

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Keywords

  • Satellite imagery
  • Spatio-temporal
  • Urban green spaces
  • Urban Heat Distribution (UHD)

ASJC Scopus subject areas

  • Computer Networks and Communications

Cite this

Choi, H., & Lee, W-K. (2011). Effect of green spaces on urban heat distribution using satellite imagery. In 32nd Asian Conference on Remote Sensing 2011, ACRS 2011 (Vol. 4, pp. 2286-2289)