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

    1 Citation (Scopus)

    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
    Publication statusPublished - 2011
    Event32nd Asian Conference on Remote Sensing 2011, ACRS 2011 - Tapei, Taiwan, Province of China
    Duration: 2011 Oct 32011 Oct 7

    Publication series

    Name32nd Asian Conference on Remote Sensing 2011, ACRS 2011
    Volume4

    Other

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

    Keywords

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

    ASJC Scopus subject areas

    • Computer Networks and Communications

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