TY - JOUR
T1 - Long-range transboundary transport of air pollutants into Korea during the EMeRGe-Asia campaign
AU - Kim, Jhoon
AU - Lee, Hana
AU - Lee, Seoyoung
AU - Choi, Myungje
AU - Lim, Hyungkwang
AU - Cho, Yeseul
AU - Chong, Heesung
AU - Eck, Tom F.
AU - Holben, Brent N.
AU - Koo, Ja-Ho
PY - 2019/4/1
Y1 - 2019/4/1
N2 - During the EMeRGe-Asia campaign (from 12 March to 8 April, 2018), we
detected several cases for the long-range transboundary transport of
airborne aerosols from the west to the Korean peninsula. To investigate
the characteristic of this transport, representative 4 cases were
selected for this study at first: 12-13 March, 24-25 March, 28-29 March,
and 7-8 April. In these cases, we could find the high aerosol optical
depth (AOD) in all west coastal regions in Korea based on the Aerosol
Robotic Network (AERONET) measurement. The satellite Geostationary Ocean
Color Imager (GOCI) and Advanced Himawari Imager (AHI) well indicated
that this high AOD is attributed to the transport of thick aerosol
plumes from eastern China. For the 24-25 March case, highly enhanced AOD
was found over the Yellow Sea with low-level cloud, meaning the
potential increase of atmospheric turbidity due to the hygroscopic
growth of particle. Volume size distribution provided from the AERONET
observations revealed the size increase of fine mode particle in this
case. For 7-8 April, there was a large transport of Asian dust and PM10
level in Korea reached 400 μg/m3 at maximum. For all these cases,
we tried to estimate the flux rate of transported aerosol masses using
the regional wind field information. Comparison with surface particulate
matter (PM) observations showed the moderate consistency with AOD in
general, but a discrepancy in terms of a diurnal variation. Further
analysis will be required for better understanding of this issue.
AB - During the EMeRGe-Asia campaign (from 12 March to 8 April, 2018), we
detected several cases for the long-range transboundary transport of
airborne aerosols from the west to the Korean peninsula. To investigate
the characteristic of this transport, representative 4 cases were
selected for this study at first: 12-13 March, 24-25 March, 28-29 March,
and 7-8 April. In these cases, we could find the high aerosol optical
depth (AOD) in all west coastal regions in Korea based on the Aerosol
Robotic Network (AERONET) measurement. The satellite Geostationary Ocean
Color Imager (GOCI) and Advanced Himawari Imager (AHI) well indicated
that this high AOD is attributed to the transport of thick aerosol
plumes from eastern China. For the 24-25 March case, highly enhanced AOD
was found over the Yellow Sea with low-level cloud, meaning the
potential increase of atmospheric turbidity due to the hygroscopic
growth of particle. Volume size distribution provided from the AERONET
observations revealed the size increase of fine mode particle in this
case. For 7-8 April, there was a large transport of Asian dust and PM10
level in Korea reached 400 μg/m3 at maximum. For all these cases,
we tried to estimate the flux rate of transported aerosol masses using
the regional wind field information. Comparison with surface particulate
matter (PM) observations showed the moderate consistency with AOD in
general, but a discrepancy in terms of a diurnal variation. Further
analysis will be required for better understanding of this issue.
M3 - Article
VL - 21
SP - 13082
JO - 21st EGU General Assembly, EGU2019, Proceedings from the conference held 7-12 April, 2019 in Vienna, Austria
JF - 21st EGU General Assembly, EGU2019, Proceedings from the conference held 7-12 April, 2019 in Vienna, Austria
ER -