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자료유형
학술저널
저자정보
조구희 (기상청) 권태영 (강릉원주대학교)
저널정보
한국기상학회 대기 대기 Vol.22 No.1
발행연도
2012.3
수록면
57 - 71 (15page)

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초록· 키워드

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Imfluences of orographic and ocean and ocean effect/ which depend on the detailded geographic characteristics, upon winter time (December-Februrary) precipitation in the Yeongdong region are investigated. Most of precipitation events in the Yeongdong region during the wintertime are associated with moist northeasterly (coming from the northeast direction) winds and also the spatial distribution of precipitation shows a great difference between Mountain area (Daegwallyeong) and Coastal area (Gangneung). The linear correlation coefficient between the meteorogical variables obtained from NCEP/NCAR Reanalysis Data and precipitation amount meteorological variables obtained from NCEP/NCAR Reanalysis Data and precipitation amount for each precipitation type is calculated. Mountain type precipitation is domainated by northeasterly wind speed of the low level (1000hPa and 925 hPa) and characterized with more precipitation in mountain area than coastal area. However, Coastal type precipitation is affected by temperature difference between ocean and atmosphere, and characterized as follows; In the case of mountain type precipitation, the correlation coefficient between wind speed at 1000 hPa (925 hPa) and precipitation amount at Daegwallyeong is 0.60 (0.61). The correlation is statistical significant at 1% level. In the case of coastal type precipitation, the correlation coefficient of temperature difference between ocean and 925hPa (850 hPa) over the East sea area and precipitation amount at Gangneung is 0.33 (0.34). As for the mountain type preciptation, a detailed analysis was conducted in order to verify the relationship between precipitation amount at Daegwallyeong and low level wind speed data from wind profiler in Gangneung and Buoy in the East sea. The results also show the similar behavior. This result indicates that mountain type precipitation in the Yeongdong region in closely related with eastrely wind speed. Thus, the statistical analysis of the few selected meteorogical variables can be a good indicator to estimate the precipitation total in the Yeongdong region in winter time.

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Abstract

1. 서론

2. 자료 및 연구방법

3. 강수 유형 분류

4. 2008년 1월 12일 영동 강수 사례

5. 강우량과의 상관성

6. 결론

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