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Outdoor Artificial Light Pollution Change in the Republic of Korea

  • Journal of the Korean Cartographic Association
  • Abbr : JKCA
  • 2014, 14(1), pp.49-59
  • Publisher : The Korean Cartographic Association
  • Research Area : Social Science > Geography > Geography in general > Cartography

Minho Kim 1

1상명대학교

Accredited

ABSTRACT

This research aims at analyzing and presenting changes in nighttime sky glow, as a type of light pollution, in the Republic of Korea (ROK). It utilized Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) nighttime lights imagery and polygon maps representing Eup-Myeon-Dong (EMD) administration units for the years of 1992 and 2012 in order to achieve such purposes. According to this study, approximately 82% of ROK land areas experienced increases in nighttime sky glow during the time period. On the contrary, the decreases of the sky glow occurred at only about 10% of ROK land territories. In addition, the increase of EMD unit number has been observed for last 20 years, taking it into account the exposure to severe light pollution, represented by the maximum pixel values of DMSP OLS imagery. Therefore, it would be urgently required to control and abate nighttime light pollution and research its potential association with negative human health outcomes from the perspective of spatial epidemiology. In this sense, satellite-based data like DMSP OLS representing nighttime sky glow are anticipated to be useful for such research fields.

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