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커뮤니티
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국기상학회 Asia-Pacific Journal of Atmospheric Sciences Journal of the Korean Meteorological Society Vol.43 No.4
- 발행연도
- 2007.11
- 수록면
- 343 - 357 (15page)
이용수
초록· 키워드
오류제보하기
Aerosols affect the earth’s climate by scattering and absorbing radiation, and by altering the cloud microphysics. Since the effects of aerosols are different from the type to the other, aerosol type classification from satellite remote sensing is challenging. In this study, types of aerosol are classified into dust, sea salt, smoke plume, and sulfate by using aerosol optical thickness (AOT) and Angstrom exponent (AE) of Moderate Resolution Imaging Spectroradiometer (MODIS) and aerosol index (AI) of Ozone Monitoring Instrument (OMI) data. The optical properties and types of aerosol are analyzed over the East Asia, one of the heavily polluted regions on the globe. AOTs significantly decrease from near-continent ocean to remote ocean in monthly climatology, and the maximum AOT is represented in June over the Northeast China, Korean Peninsula, and Japan. The distribution of AEs indicates that aerosols of anthropogenic as well as natural origin exist over both land and ocean in East Asia. The seasonal variation of AI is represented over the regions with latitude between 30°N and 40°N where the influence of Asian Dust is significant in dry season. Retrieved aerosol types by MODIS-OMI algorithm showed that the aerosols are considerably mixed, and represented seasonal variation over East Asia. The evidence of pollution transport is detected by aerosol classification, that is, the anthropogenic aerosol types are detected over ocean not only over land. Based on retrieved aerosol types, the frequency distributions of each aerosol type are analyzed in Beijing, Seoul, and Tokyo. Dust type aerosol is most frequently detected followed by mixtures of sea salt/sulfate at Beijing, whereas sea salt/sulfate mixture is most frequently detected at Seoul and Tokyo. The frequency distributions of aerosol types are similar for both in 2005 and 2006, while the distribution showed considerable seasonal variations.
목차
Abstract
1. Introduction
2. Data
3. Method
4. Results
5. Conclusion
Acknowledgments
REFERENCES
참고문헌 (20)
참고문헌 신청
1. [학술지(정기간행물)] - Ahmad S. P / 2006 / Aerosol index from TOMS and OMI measurements
2. [학술지(정기간행물)] - Cho H. K / 2003 / Dependence of diffuse photosynthetically active solar irradiance on total optical depth 108 (D9) : 4267 ~
3. [학술지(정기간행물)] - Herman J. R / 1997 / Global distribution of UV-absorbing aerosols from Nimbus7/TOMS data 102 (D14) : 16911 ~ 16922
4. [학술지(정기간행물)] - Higurashi A / 2002 / Detection of aerosol types over the East China Sea near Japan from four-channel satellite data 29 (17) : 1836 ~
5. [학술지(정기간행물)] - Hsu N. C / 2004 / Aerosol properties over bright-reflecting source regions 42 (3) : 557 ~ 569
2. [학술지(정기간행물)] - Cho H. K / 2003 / Dependence of diffuse photosynthetically active solar irradiance on total optical depth 108 (D9) : 4267 ~
3. [학술지(정기간행물)] - Herman J. R / 1997 / Global distribution of UV-absorbing aerosols from Nimbus7/TOMS data 102 (D14) : 16911 ~ 16922
4. [학술지(정기간행물)] - Higurashi A / 2002 / Detection of aerosol types over the East China Sea near Japan from four-channel satellite data 29 (17) : 1836 ~
5. [학술지(정기간행물)] - Hsu N. C / 2004 / Aerosol properties over bright-reflecting source regions 42 (3) : 557 ~ 569
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UCI(KEPA) : I410-ECN-0101-2009-453-016358158