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자료유형
학술저널
저자정보
최승보 (강릉원주대학교) 이재규 (강릉원주대학교)
저널정보
한국기상학회 대기 대기 Vol.26 No.1
발행연도
2016.3
수록면
159 - 183 (25page)

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On 31 July 2014, there was a localized torrential rainfall (58.5 mm hr<SUP>−1</SUP>) caused by a strong convective cell with thunder showers over Daegwallyeong. In the surface synoptic chart, a typhoon was positioned in the East China Sea and the subtropical high was expanded to the Korean peninsula. A WRF (Weather Research and Forecasting) numerical simulation with a resolution of 1 km was performed for a detailed analysis. The simulation result showed a similar pattern in a reflectivity distribution particularly over the Gangwon-do region, compared with the radar reflectivity. According to the results of the WRF simulation, the process and mechanism of the localized heavy rainfall over Daegwallyeong are as follows: (1) a convective instability over the middle part of the Korean peninsula was enhanced due to the low level advection of warm and humid air from the North Pacific high. (2) There was easterly flow from the coast to the mountainous regions around Daegwallyeong, which was generated by the differential heating of the insolation among Daegwallyeong and the Yeongdong coastal plain, and nearby coastal waters. (3) In addition, westerly flow from the western part of Daegwallyeong caused a strong convergence in this region, generating a strong upward motion combined by an orographic effect. (4) This brought about a new convective cell over Daegwallyeong. And this cell was more developed by the outflow from another thunderstorm cell to the south, and finally these two cells were merged to develop as a strong convective cell with thunder showers, leading to the record breaking maximum rainfall per hour (58.5 mm hr<SUP>−1</SUP>) in July.

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Abstract
1. 서론
2. 사례분석
3. WRF 수치 모의
4. 요약 및 결론
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UCI(KEPA) : I410-ECN-0101-2016-453-002764076