气候变化领域集成服务门户(CCPortal): Comparing the Radiative Forcings of the Anthropogenic Aerosol Emissions From Chile and Mexico

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DOI	10.1029/2020JD033364
	Comparing the Radiative Forcings of the Anthropogenic Aerosol Emissions From Chile and Mexico
	Miinalainen T.; Kokkola H.; Lehtinen K.E.J.; Kühn T.
发表日期	2021
ISSN	2169897X
卷号	126 期号:10
英文摘要	There has been growing interest in the potential of short-lived climate forcer (SLCF) mitigation to reduce near-term global warming. Black carbon (BC), organic carbon (OC), and sulfur dioxide (SO2) are SLCFs which change the Earth's radiative balance directly by affecting radiation, and indirectly by altering cloud properties. We used the ECHAM-HAMMOZ aerosol-climate model to study the radiative forcings due to mitigating the anthropogenic emissions of BC, OC, and SO2 from Chile and Mexico. Limiting our analysis to areas where these emissions had notable effects on both aerosol and clouds, we found that the total radiative forcings of anthropogenic aerosol emissions are different for Chile and Mexico. This was explained by differences in aerosol emissions, orography, and meteorology in these two countries. Especially the radiative forcing for Chilean emissions was influenced by the persistent stratocumulus cloud deck west of Chile. To reduce the uncertainty of our radiative forcing calculations, we nudged the wind and surface pressure toward pre-generated fields. As nudging affects the calculated effective radiative forcing (ERF), we here used the identifier ERFNDG. Our results indicate that the removal of OC and SO2 emissions caused a positive ERFNDG while the removal of BC emissions caused a positive ERFNDG for Chile, but a negative ERFNDG for Mexico. When accounting for co-emission of other aerosol compounds, reducing BC emissions led to positive ERFNDG in both countries. Compared to China, the removal of anthropogenic SO2 emissions in Chile and Mexico caused a much larger global average ERFNDG per emitted unit mass of SO2. © 2021. The Authors.
英文关键词	aerosol-cloud interactions; black carbon; global climate modeling; short-lived climate forcers; SLCF mitigation
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185198
作者单位	Department of Applied Physics, University of Eastern Finland (UEF), Kuopio, Finland; Atmospheric Research Centre of Eastern Finland, Finnish Meteorological Institute (FMI), Kuopio, Finland
推荐引用方式 GB/T 7714	Miinalainen T.,Kokkola H.,Lehtinen K.E.J.,et al. Comparing the Radiative Forcings of the Anthropogenic Aerosol Emissions From Chile and Mexico[J],2021,126(10).
APA	Miinalainen T.,Kokkola H.,Lehtinen K.E.J.,&Kühn T..(2021).Comparing the Radiative Forcings of the Anthropogenic Aerosol Emissions From Chile and Mexico.Journal of Geophysical Research: Atmospheres,126(10).
MLA	Miinalainen T.,et al."Comparing the Radiative Forcings of the Anthropogenic Aerosol Emissions From Chile and Mexico".Journal of Geophysical Research: Atmospheres 126.10(2021).