수산해양기술연구 (Journal of the Korean Society of Fisheries and Ocean Technology)
- 제26권3호
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- Pages.254-264
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- 1990
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- 2671-9940(pISSN)
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- 2671-9924(eISSN)
수영만의 안개 발생에 관한 연구
A Study on the Fog Occurrence in Suyoung Bay
- Jo, Gyu-Dae (National Fisheries University of Pusan) ;
- Kim, Sun-Yeong (National Fisheries University of Pusan)
- 발행 : 1990.09.01
초록
수영만을 포함한 부산 지방 안개발생의 특징 및 안개 발생에 대한 부산 연안의 역할을 최근 5개년(1984~1988)의 기상 관측자료 및 지상 일기도, 그리고 해양관측자료를 사용하여 조사하였다. 또한 1989년 7월 한 달 동안 수영만에서 관측한 일기상 자료와 표면 수온을 부산지방의 일기상 자료, 표면수온과 비교하였다. 부산 지방의 안개는 5, 6, 7월에 집중적으로 발생하며, 안개 발생시의 주풍향은 수증기 공급이 용이한 남서풍 및 북동풍이었다. 안개 발생과 관련된 기압계 유형은 봄철(3, 4, 5월)이 pattern 7 (이동성 고기압형), 여름철(6, 7, 8월)이 pattern3(정체전선인 33
Using the meteorological data, surface weather map, and oceanographic data for 5 years(1984-1988). I investigated the characteristics of the fog occurrence and the role of the inshore in Pusan about the fog occurrence. And the meteorological data and sea surface temperature(SST), which were observed in July, 1989 in Suyoung Bay, were compared with those in Pusan. The fogs in Pusan concentrate in May, June and July. And at fog occurrence time the principal wind directions are Southwest(SW) winds, which easily supply with water vapor, and a series of Northeast(NE) wind. At the fog days pressure patterns are pattern 7 in spring time (March, April, and May) and pattern 10 and pattern 13 in summer time (June, July, and August). Also the advection fog(sea fog) is closely related with the relationship between warm and cold advection in 850~700mb and cold and warm SST rather than the increase of the instability of atmosphere in 850~500mb. The fogs in Taegu, which is the inland region, mainly occur at dawn in fall time due to the strong night radiation fog. On the other hand in Pusan the coastal region, the fogs occur from late spring time to summer time (May, June, and July). Because there is the abundant supply of the water vapor from the ocean owing to a series of South(S) wind at this time. Then the atmosphere, which has high relative humidity, reaches easily the supersaturation by the radiation cooling. In Suyoung Bay and Pusan the meteorological observation data, SST and fog days are almost similar. And I think that the mechanism of the fog occurrence nearly accords with both regions.
키워드