Landscape and Urban Planning 170 (2018) 90–102 Contents lists available at ScienceDirect Landscape and Urban Planning journal homepage: www.elsevier.com/locate/landurbplan Research Paper Evaluation of satellite-derived building height extraction by CFD simulations: A case study of neighborhood-scale ventilation in Hong Kong a, b a,b,c d Weiwen Wang , Yong Xu , Edward Ng , Siegfried Raasch School of Architecture, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China Institute of Future Cities, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China Institute of Meteorology and Climatology, Leibniz Universität, Hannover, Germany ARTICLE I NFO ABSTRACT Keywords: Computational ﬂuid dynamics (CFD) techniques, such as large-eddy simulation (LES), are widely used in urban Building height extraction ventilation studies. Unfortunately, realistic building data required in CFD studies are not always available. In this Urban ventilation study, LES of urban ventilation is used to assess building height extraction from diﬀerent satellite images. As a Large-eddy simulation case study, three sets of digital elevation data extracted from satellite images in an urban area of Mong Kok, High-density urban area Hong Kong, are assessed.
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