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논문 기본 정보

자료유형
학술저널
저자정보
이나미 (부산대학교) 김철희 (부산대학교)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제37권 제6호
발행연도
2021.12
수록면
956 - 971 (16page)

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초록· 키워드

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Long-term variabilities of particulate matters (PM) over the past 20 years (Feb. 2000∼Dec. 2020) in East Asia were analyzed based on the Empirical Orthogonal Function (EOF) analysis, and interpreted their relationships associated with climate factors. As an index of PM, the Moderate-Resolution Imaging Spectroradiometer (MODIS) aerosol optical depth (AOD) was employed, and two climatological indices, East Asian Winter Monsoon Index (EAWMI) and Sea Ice Extent (SIE), were used over the same period to investigate the PM-climate associations. The results showed that monthly AOD variability in East Asia was primarily driven by natural aerosols, and secondarily by anthropogenic aerosols with higher variabilities at around BTH (Beijing-Tianjin-Hebei) and YRD (Yangtze River Delta) region in China. Inter-annual variations of wintertime (December, January, and February) AOD clearly showed that anthropogenic aerosol-driven variability was predominant in controlling the AOD in East Asia, following the same tendencies of Chinese emission reduction plans, such as increasing until around 2013 and then decreasing since then, and temporal lower variations in 2008. In AOD-climate analysis, the AOD-EAWMI associations implied that the enhanced East Asian winter monsoon has a considerable impact on the AOD by controlling the air pollutant ventilation. The correlation between EAWMI vs. Arctic SIE over the Kara-Barents Sea showed the negative correlation during the same period, suggesting that AOD in East Asia could be also increased in response to the weakened EAWMI and enhanced arctic SIE, under the premise of ongoing climate change in East Asia.

목차

Abstract
1. 서론
2. 자료, 분석 영역, 연구 방법
3. 결과 및 분석
4. 요약 및 결론
References

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