ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., I-2, 171-176, 2012
https://doi.org/10.5194/isprsannals-I-2-171-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
13 Jul 2012
VISUALIZATION AND ANALYSIS OF LIGHT POLLUTION: A CASE STUDY IN HONG KONG
B. Wu and H. Wong Dept. of Land Surveying & Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Keywords: Light Pollution, Visualization, Analysis, Environment, Social-Economic factor Abstract. The effects of light pollution problems in metropolitan areas are investigated in this study. Areas of Hong Kong are used as the source of three typical study cases. One case represents the regional scale, a second represents the district scale, and a third represents the street scale. Two light pollution parameters, Night Sky Brightness (NSB) and Street Light Level (SLL), are the focus of the analyses. Light pollution visualization approaches in relation to the different scales include various light pollution maps. They provide straightforward presentations of the light pollution situations in the study areas. The relationship between light pollution and several social-economic factors such as land use, household income, and types of outdoor lighting in the scale areas given, are examined. Results show that: (1) Land use may be one factor affecting light pollution in the regional scale; (2) A relatively strong correlation exists between light pollution and household income in the district scale; (3) The heaviest light pollution in the street scale is created by spotlights and also the different types of lighting from shops. The impact of the latter is in relation to the shop profile and size.
Conference paper (PDF, 2050 KB)


Citation: Wu, B. and Wong, H.: VISUALIZATION AND ANALYSIS OF LIGHT POLLUTION: A CASE STUDY IN HONG KONG, ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., I-2, 171-176, https://doi.org/10.5194/isprsannals-I-2-171-2012, 2012.

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