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배경대기 에어러솔 (β-ray PM10) 농도 평가기술 및 실용정보 개발
임한철,신임철,김성진 한국기상학회 2010 한국기상학회 학술대회 논문집 Vol.2010 No.10
본 평가기술개발은 기상청 기후변화감시센터에서 개발하고 있으며 2011년부터 에어러솔 β-ray PM10 관측요소에 적용하여 시험운영을 거친 후 매분기별 대국민 실용정보로 제공할 예정이다. 앞으로 기후변화감시분야 배경대기 평가기술 및 실용정보 개발이 완료되면 관계기관 및 국민들도 우리나라 배경대기의 에어러솔 농도변화를 이해하기 쉽고 간단한 실용정보로 제공받을 수 있을 것으로 전망된다.
임한철,전종갑,권원태,문병권 한국지구과학회 2009 韓國地球科學會誌 Vol.30 No.5
This study examines the changes of an interdecadal circulation over the Asian continent to find cause of the surface warming in Siberia from 1958 to 2004. According to our study, there is a coherency between a long-term change of sea surface temperature in the Indian Ocean and the rapid increase of air temperature in Siberia since 1976/1977. In this study, we suggest that mean wind field changes induced by the positive sea surface temperature anomalies of the Indian Ocean since 1976/1977 are caused of inter-decadal variations in a large-scale circulation over the Asian continent. It also indicates that the inter-decadal circulation over the Asian continent is accompanied with warm southerly winds near surface, which have significantly contributed to the increase of surface temperature in Siberia. These southerly winds have been one of the most dominant interdecadal variations over the Asian continent since 1976/1977. In addition, we investigated the long-term trend mode of 850 hPa geopotential height data over the Asian continent from the Empirical Orthogonal Function (EOF) analysis for 1958-2004. In result, we found that there was an anomalously high pressure pattern over the Asian continent, it is called ‘the Asian High mode’. It is thus suggested that the Asian High mode is another response of interdecadal changes of large-scale circulations over the Asian continent. This study examines the changes of an interdecadal circulation over the Asian continent to find cause of the surface warming in Siberia from 1958 to 2004. According to our study, there is a coherency between a long-term change of sea surface temperature in the Indian Ocean and the rapid increase of air temperature in Siberia since 1976/1977. In this study, we suggest that mean wind field changes induced by the positive sea surface temperature anomalies of the Indian Ocean since 1976/1977 are caused of inter-decadal variations in a large-scale circulation over the Asian continent. It also indicates that the inter-decadal circulation over the Asian continent is accompanied with warm southerly winds near surface, which have significantly contributed to the increase of surface temperature in Siberia. These southerly winds have been one of the most dominant interdecadal variations over the Asian continent since 1976/1977. In addition, we investigated the long-term trend mode of 850 hPa geopotential height data over the Asian continent from the Empirical Orthogonal Function (EOF) analysis for 1958-2004. In result, we found that there was an anomalously high pressure pattern over the Asian continent, it is called ‘the Asian High mode’. It is thus suggested that the Asian High mode is another response of interdecadal changes of large-scale circulations over the Asian continent.