韓國의 視程의 經年變化와 季節變化
(주)코리아스칼라
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- 2023.04.05
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- 1990.08
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서지정보
ㆍ발행기관 : 한국지구과학회
ㆍ수록지정보 : 한국지구과학회지 / 11권 / 2호
ㆍ저자명 : 김해구, 민경덕
영어 초록
The secular and seasonal variations of visibility of 24 cities in Korea are studied statistically from 1973 to 1986. The geographical distributions of annual change patterns of visibility are also studied by means of their characteristical variations. The secular variations of visibility show that annual totals of poor visibility($lt;10㎞) days increase significantly, while that of good visibility ($gt;30㎞) days decrease remarkably. Such tendencies are quite reversal to those appearing in several large cities in the U.S.A., England and Japan. Seasonal variations of visibility can be classified into three types : type A) The visibility is maximum in winter and minimum in summer, type B) The visibility is maximum in spring and fall, minimum in summer and winter, type C) The visibility is maximum in spring and fall, minimum is summer. Geographical distributions of annual mean visibility show that the poorest visibility appears in the Kyunggi inland region(mean 15㎞), while the best visibility occurs in mountainous north Kangwon-do and Cheju island(over 25㎞).
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