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논문 기본 정보

자료유형
학술저널
저자정보
김유진 (강릉원주대학교) 김만기 (기상청) 이재규 (강릉원주대학교)
저널정보
한국기상학회 대기 대기 Vol.29 No.3
발행연도
2019.9
수록면
325 - 342 (18page)

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초록· 키워드

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Precipitation and no-precipitation events under the influence of the Siberian high pressure system in Yeondong region, were analysed and classified as four types [obvious precipitation event (OP) type, obvious no-precipitation event (ON) type, ambiguous precipitation event (AP) type and ambiguous no-precipitation event (AN) type], according to the easiness in determining whether to have precipitation or not in Yeongdong region, to help in improving the forecast skill. Concerning the synoptic pressure pattern, for OP type, the ridge of Siberian high extends from Lake Baikal toward Northeast China, and there is a northerly wind upstream of the northern mountain complex (located near the Korean-Chinese border). On the other hand, for ON type, the ridge of Siberian high extends southeastward from Lake Baikal, and there is a westerly wind upstream of the northern mountain complex. The pressure pattern of AP type was similar to the OP type and that of AN type was also similar to ON type. Thus it was difficult to differentiate AP type and OP type and AN type and ON type based on the synoptic pressure pattern only. The four types were determined by U (wind speed normal to the Taebaek mountains) and Froude number (FN). That is, for OP type, average FN and U at Yeongdong coast are ~2.0 and ~6 m s<SUP>−1</SUP>, and those at Yeongseo region are 0.0 and 0.1 m s<SUP>−1</SUP>, respectively. On the contrary, for ON type, average FN and U at Yeongdong coast are 0.0 and 0.2 m s<SUP>−1</SUP>, and those at Yeongseo region are ~1.0 and ~4 m s<SUP>−1</SUP>, respectively. For AP type, average FN and U at Yeongdong coast are ~1.0 and ~4 m s<SUP>−1</SUP>, and those at Yeongseo region are 0.0 and 0.2 m s<SUP>−1</SUP>, whereas for AN type, average FN and U at Yeongdong coast are 0.1 and 0.6 m s<SUP>−1</SUP> and those at Yeongseo region are ~1.0 and ~3 m s<SUP>−1</SUP>, respectively. Based on the result, a schematic diagram for each type was suggested.

목차

Abstract
1. 서론
2. 분석 방법
3. 분석 결과
4. 결론
REFERENCES

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