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The Spatial Distribution and Change of Frequency of the Yellow Sand Days in Korea

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2006, 15(3), pp.207-215
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Lee Seung Ho 1 Sunyoung Kim 1

1건국대학교

Accredited

ABSTRACT

The purpose of this paper is to analyze the spatial distribution and change of the frequency ofYellow Sand days and to examine their relationship with atmospheric circular characteristics atthe surroundings of the Korean peninsula. Yellow Sand days data are used by intensity,Siberian High Index and monthly mean temperature of the Northern Hemisphere.In the Middle-western region, the occurrence frequency of Yellow Sand days was higherduring the study period (1973-2004). Also, the occurrence frequency of Yellow Sand daysincreased to latter half 16 years compared with the first half 16 years, and be clearer in Middle-west regions.Yellow Sand days frequency increased, and the trend was distinct in the Jungbu regionduring the study period. Increasing trend of Yellow Sand days frequency was significant for therecent 22 years. Yellow Sand days had a negative relationship with Siberian High Index inFebruary and March. Therefore, Siberian High Index became weaker in the spring, andpossibility for the occurrence of Yellow Sand days was generating larger. Yellow Sand days hada positive relationship in monthly mean temperature of the Northern Hemisphere. Especially,the case of the strong Yellow Sand days is significant. Recently, global warming might beaffecting the occurrence of strong Yellow Sand days.

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