globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD027415
Scopus记录号: 2-s2.0-85044249499
论文题名:
Characterization of Wildfire-Induced Aerosol Emissions From the Maritime Continent Peatland and Central African Dry Savannah with MISR and CALIPSO Aerosol Products
作者: Lee H.; Jeong S.-J.; Kalashnikova O.; Tosca M.; Kim S.-W.; Kug J.-S.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:6
起始页码: 3116
结束页码: 3125
语种: 英语
英文关键词: aerosol optical depth ; aerosol speciation ; CALIPSO ; MISR ; optical properties of aerosols ; wildfire
Scopus关键词: aerosol ; atmospheric plume ; CALIPSO ; climate effect ; MISR ; observational method ; optical depth ; peatland ; radiation budget ; regional climate ; savanna ; speciation (chemistry) ; wildfire ; Central Africa
英文摘要: Aerosol plumes from wildfires affect the Earth's climate system through regulation of the radiative budget and clouds. However, optical properties of aerosols from individual wildfire smoke plumes and their resultant impact on regional climate are highly variable. Therefore, there is a critical need for observations that can constrain the partitioning between different types of aerosols. Here we present the apparent influence of regional ecosystem types on optical properties of wildfire-induced aerosols based on remote sensing observations from two satellite instruments and three ground stations. The independent observations commonly show that the ratio of the absorbing aerosols is significantly lower in smoke plumes from the Maritime Continent than those from Central Africa, so that their impacts on regional climate are different. The observed light-absorbing properties of wildfire-induced aerosols are explained by dominant ecosystem types such as wet peatlands for the Maritime Continent and dry savannah for Central Africa, respectively. These results suggest that the wildfire-aerosol-climate feedback processes largely depend on the terrestrial environments from which the fires originate. These feedbacks also interact with climate under greenhouse warming. Our analysis shows that aerosol optical properties retrieved based on satellite observations are critical in assessing wildfire-induced aerosols forcing in climate models. The optical properties of carbonaceous aerosol mixtures used by state-of-the-art chemistry climate models may overestimate emissions for absorbing aerosols from wildfires over the Maritime Continent. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114242
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作者单位: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Department of Environmental Planning, Graduate School of Environmental Studies, Seoul National University, Seoul, South Korea; School of the Art Institute of Chicago, Chicago, IL, United States; School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea; Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, South Korea

Recommended Citation:
Lee H.,Jeong S.-J.,Kalashnikova O.,et al. Characterization of Wildfire-Induced Aerosol Emissions From the Maritime Continent Peatland and Central African Dry Savannah with MISR and CALIPSO Aerosol Products[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(6)
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