Journal of the Korean Geographical Society (대한지리학회지)

The Korean Geographical Society (대한지리학회)
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The Study on Occurrence of Asian Dust and Their Controlling Factors in Korea

한국의 황사 출현에 영향을 미치는 요인에 관한 연구

  • Published : 2009.12.31
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Abstract

This paper aims to analyze number of Asian dust days and their controlling factors in Korea. Asian dust days, Arctic oscillation index, Antarctic oscillation index and Eurasian snow cover data were used in this study. The number of Asian dust days was increasing after the middle 1980s. The number of Asian dust days was concentrated in April. The number of Asian dust days was increased second half (5.1 days) than first half (3.2 days) of the study period. The number of Asian dust days had positive relationship with winter Arctic oscillation index and Antarctic oscillation index. When the Arctic oscillation index and Antarctic oscillation index is positive, the Asian dust days will be increased. The number of Asian dust days had negative relationship with the Eurasian snow cover. When the Eurasian snow cover will be decreased, the Asian dust days will be increased.

본 연구에서는 우리나라에 출현하는 황사에 영향을 미치는 요인을 파악하기 위하여, 우리나라의 황사 출현일수와 대기순환지수인 북극진동지수, 남극진동지수와 유라시아 대륙 적설면적과의 관계를 분석하였다. 우리나라의 황사 출현일수는 1980년대 중반 이후 증가하고 있는 경향이다. 월별로는 4월에 황사 출현일수가 집중되었고 전반기의 3.2일에서 후반기의 5.1일로 1.9일 증가하였다. 황사 출현일수와 겨울철 북극진동지수 및 남극진동지수와는 정적인 관계가 있었다. 이는 겨울철 북극진동지수와 남극진동지수가 양의 값일 때 황사 출현일수가 증가한다고 할 수 있다. 황사 출현일수와 유라시아 대륙 적설면적과는 부적인 관계가 있었다. 이는 유라시아에 적설면적이 감소하면 황사 출현일수가 증가한다고 할 수 있다.

Keywords

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