대한지리학회지 (Journal of the Korean Geographical Society)

대한지리학회 (The Korean Geographical Society)
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오호츠크해고기압의 출현일과 강도의 변동에 관한 연구 -한반도에 영향을 미친 날을 중심으로-

A Study on the Frequency and Intensity Variations of Okhotsk High: Focused on the Korean Peninsula

  • 투고 : 2011.01.28
  • 심사 : 2011.02.23
  • 발행 : 2011.02.28
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초록

본 연구에서는 오호츠크해고기압이 한반도에 영향을 미치는 날과 강도의 변화를 규명하고자 하였다. 지상 일기도와 기상자료, 재분석자료 등을 분석하여 다음과 같은 결과를 얻었다. 4월의 주변 육지기온이 높은 해일수록 오호츠크해고기압의 첫 출현일이 일러지는 경향이다. 최근 오호츠크해고기압의 출현일수는 감소하였으며, 그 강도는 6월 해수면온도와 주변 육지기온의 차이가 클수록 강해지는 경향이다 4 5월, 6월, 7월의 오호츠크해고기압 출현일수는 주변 육지기온이 상승할수록 증가하며, 해수면온도와 주변 육지 기온의 차이가 커질수록 강도가 강해진다. 오호츠크해고기압의 첫 출현일이 일러짐에 따라 4월과 5월의 오호츠크해고기압 출현일수는 증가하고 강도는 약해질 수 있다. 그러나 6월에는 반대의 경향이 나타날 수 있다.

This paper aims to investigate the frequency and intensity variations of Okhotsk high pressure system focused on the Korean Peninsula. Weather chart (00UTC), daily weather data and reanalysis data were used. The first occurrence date of Okhotsk high pressure system tends to be earlier in those years that surrounding land air temperature in April is high. The frequency of Okhotsk high has recently decreased, and its intensity tends to be stronger when the difference between sea surface temperature and surrounding land air temperature is big. The frequency of Okhotsk high in April, May, June and July increases when surrounding land air temperature is high, and its intensity grows when the difference between surrounding land air temperature and sea surface temperature is big. The frequency of Okhotsk high may increase and its intensity may increase when the first occurrence date comes earlier. In June, however, the reverse may apply.

키워드

과제정보

연구 과제 주관 기관 : 기상청

참고문헌

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