Distribution and direct radiative forcing of black carbon aerosols over Korean Peninsula

Title
Distribution and direct radiative forcing of black carbon aerosols over Korean Peninsula
Authors
김민영이승복배귀남박승식한경만박래설송철한박성훈
Keywords
Black carbon; Radiative forcing; Air quality; Climate; Modeling; Korean Peninsula
Issue Date
2012-10
Publisher
Atmospheric environment
Citation
VOL 58, 45-55
Abstract
Regional air quality modelling was used to simulate the distribution of BC aerosol over the Korean Peninsula for four mid-season months of 2009. Compared to ground-based and satellite observations, the model underestimated the average BC burden significantly, which might be attributed to inaccuracy in BC emissions inventories partly due to the neglect of the emissions from biomass burning although it is not possible to rule out inaccurate prediction of meteorology. The model-estimated monthly average BC burdenwas highest in winter because of the largest emission. When the BC burdenwas divided by the monthly emission factor, the adjusted BC burden was much higher in spring and fall than in winter and summer due to strong influence of Chinese source conveyed by westerly wind prevailing in spring and fall. Both long-range transport and local sources were shown to contribute to atmospheric BC over the Korean Peninsula. Urban areas were influenced more by local sources while the effect of long-range transport was higher in remote areas. Based on the model simulations, the direct radiative forcing (DRF) of BC was estimated to be 0.1e1.8 W m-2 over the Korean Peninsula with the domain-average value of 0.39 W m-2. Accounting for the model underestimation of absorbing aerosol optical depth by BC by 48% compared to measured monthly averages due to the underestimated emissions inventories, the adjusted average DRF is 0.75 W m-2.
URI
http://pubs.kist.re.kr/handle/201004/42859
ISSN
13522310
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE