한반도 겨울철 기온 변동과 관계된 대규모 대기 순환에 관한 연구
The Large-Scale Atmospheric Circulation Related to Korea Winter Temperature Variability
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참고문헌
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초록
본 연구에서는 겨울철에 나타나는 전지구 규모 패턴과 한반도 겨울철 기온과의 관계를 알아보았다. 500hPa 지위고도에 대한 EOF 분석을 통해 겨울철 평균(DJF) 주요 모드는 AO이고 12월, 1월, 2월 각각에 WP, PNA, EA, NAO, EU 패턴이 잘 나타나는 것을 알았다. EOF 분석에서 나타난 전지구 규모 패턴들은 한반도 겨울철 평균 기온과 높은 상관관계를 가지고 있었다. 한반도 겨울철 기온은 DJF 평균으로 보면 AO패턴, 월 별로 따져보면 12월에는 WP, 1월에는 AO 뿐만 아니라 PNA 그리고 WP, 그리고 2월에는 AO와 EU의 영향을 받는 것으로 나타났다.
Abstract
We investigated the major global scale pattern in winter time and its relationship to the variability of winter temperature in Korea. In the EOF analysis of 500hPa geopotential height, AO pattern is the leading mode of atmospheric circulation during winter(DJF). For the each month of winter, WP, PNA, EA, NAO and EU patterns are dominant. The major modes from the EOF results are highly correlated with the variability of winter temperature in Korea. Korea winter temperature is influenced by AO pattern during DJF. But for the monthly temperature, the variability of winter temperature is impacted by WP in December, AO, PNA and WP in January and AO and EU in February.
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