Object-oriented tracking of the dynamic behavior of urban heat islands

Authors: Zhu, Rui; Guilbert, Eric; Wong, Man Sing
Abstract: The urban heat island phenomenon occurring within urban areas or city-clusters is increasingly becoming a severe problem in the urbanization process. Previous research mainly focusing on static urban heat island modeled at fixed time instants is not capable to track the evolutionary process of the urban heat islands in both time and space domains. This research designs an object-oriented dynamic model to reconstruct the evolutionary process of urban heat islands. Each urban heat island is modeled as a spatiotemporal field-object with it own life-cycle. The dynamic behavior of an urban heat island is defined by a series of filiations (e.g. expansion and contraction). The model was implemented in an object-relational database and applied to air temperature data collected from weather stations in hourly-basis over seven days. The behaviors of UHI were extracted from the data. Results suggest that the model can effectively identify different behaviors and status of urban heat islands, and reveal the spatiotemporal behavior of each of them.
Document Type: Article de recherche
Issue Date: 20 July 2016
Open Access Date: 20 July 2017
Document version: AM
Permalink: http://hdl.handle.net/20.500.11794/13928
This document was published in: International journal of geographical information science, Vol. 31 (2), 405-424 (2017)
Taylor & Francis
Alternative version: 10.1080/13658816.2016.1211282
Collection:Articles publiés dans des revues avec comité de lecture

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