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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.6
- 수록면
- 264 - 274 (11page)
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초록· 키워드
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This study investigates long-term trends and characteristics of aerosol light scattering coefficient at Seoul and Baengnyeongdo in order to understand aerosol optical and radiative properties around Korea. The analysis period is limited to one year of 2011. First, the aerosol scattering coefficients (σ<SUB>sp</SUB>) of both sites show strong linear dependence on the PM<SUB>2.5</SUB> mass concentrations with significant correlations between both. Further, correlations and sensitivity between σ<SUB>sp</SUB> and PM<SUB>2.5</SUB> increase with relative humidity, implying both relationships are strongly dependent upon moisture amounts in the atmosphere. This study applied 3-step careful quality control procedures to the analysis of σ<SUB>sp</SUB> for the insurance of data confidence.
For the relationship analysis of extinction coefficients (σ<SUB>ext</SUB>) to visibility and aerosol optical depth, σ<SUB>sp</SUB> observed at 3 p.m. have been used with help of aerosol absorption coefficients (σ<SUB>ap</SUB>) in order to remove its dependence upon relative humidity, and also those of rainy period have been excluded. As expected, σ<SUB>ext</SUB> estimated are inversely proportional to visibility observation by eye. Finally, aerosol extinction coefficients have been vertically integrated with an assumption of nearly well-mixed within an e-folding height to determine aerosol optical depth, and compared with those retrieved from sunphotometer. The results show a reasonable agreement in spite of an inherent difference of each definition. We expect these findings would help to eventually understand aerosol radiative forcing and its effect on the regional climate change around Korea.
For the relationship analysis of extinction coefficients (σ<SUB>ext</SUB>) to visibility and aerosol optical depth, σ<SUB>sp</SUB> observed at 3 p.m. have been used with help of aerosol absorption coefficients (σ<SUB>ap</SUB>) in order to remove its dependence upon relative humidity, and also those of rainy period have been excluded. As expected, σ<SUB>ext</SUB> estimated are inversely proportional to visibility observation by eye. Finally, aerosol extinction coefficients have been vertically integrated with an assumption of nearly well-mixed within an e-folding height to determine aerosol optical depth, and compared with those retrieved from sunphotometer. The results show a reasonable agreement in spite of an inherent difference of each definition. We expect these findings would help to eventually understand aerosol radiative forcing and its effect on the regional climate change around Korea.
목차
Abstract
1. 서론
2. 자료 검증 및 연구방법
3. 결과 및 고찰
4. 요약 및 결론
참고문헌
참고문헌 (21)
참고문헌 신청
1. [학술지(정기간행물)] - Albrecht, B.A. / 1989 / Aerosols, Cloud Microphysics, and Fractional Cloudiness / Science 245 : 227 ~ 1230
2. [학술지(정기간행물)] - Bäumer, D. / 2008 / Determination of the visibility using a digital panorama camera / Atmos. Environ 42 : 2593 ~ 2602
3. [학술지(정기간행물)] - Charlson, R. J. / 1992 / Climate forcing by anthropogenic aerosols / Science 255 : 423 ~ 430
4. [보고서] - Cho, S.-Y / 2012 / Study on the characteristics and formation of regional PM2.5 measured at air pollution intensive monitoring sites
5. [학술지(정기간행물)] - Dey, S. / 2007 / Estimation of aerosol optical properties and radiative effects in the Ganga Basin, Northern India during the winter time / J. Geophys. Res. 112 : D03203 ~
2. [학술지(정기간행물)] - Bäumer, D. / 2008 / Determination of the visibility using a digital panorama camera / Atmos. Environ 42 : 2593 ~ 2602
3. [학술지(정기간행물)] - Charlson, R. J. / 1992 / Climate forcing by anthropogenic aerosols / Science 255 : 423 ~ 430
4. [보고서] - Cho, S.-Y / 2012 / Study on the characteristics and formation of regional PM2.5 measured at air pollution intensive monitoring sites
5. [학술지(정기간행물)] - Dey, S. / 2007 / Estimation of aerosol optical properties and radiative effects in the Ganga Basin, Northern India during the winter time / J. Geophys. Res. 112 : D03203 ~
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UCI(KEPA) : I410-ECN-0101-2014-530-003338674