气候变化领域集成服务门户(CCPortal): Effects of Low-Carbon Energy Adoption on Airborne Particulate Matter Concentrations With Feedbacks to Future Climate Over California

CCPortal

DOI	10.1029/2020JD032636
	Effects of Low-Carbon Energy Adoption on Airborne Particulate Matter Concentrations With Feedbacks to Future Climate Over California
	Kumar A.; Zapata C.; Yeh S.; Yang C.; Ogden J.; Lee H.-H.; Chen S.-H.; Kleeman M.J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:16
英文摘要	California plans to reduce emissions of long-lived greenhouse gases (GHGs) through adoption of new energy systems that will also lower concentrations of short-lived absorbing soot contained in airborne particulate matter (PM). Here we examine the direct and indirect effects of reduced PM concentrations under a low-carbon energy (GHG-Step) scenario on radiative forcing in California. Simulations were carried out using the source-oriented WRF/Chem (SOWC) model with 12 km spatial resolution for the year 2054. The avoided aerosol emissions due to technology advances in the GHG-Step scenario reduce ground level PM concentrations by ~8.85% over land compared to the Business-as-Usual (BAU) scenario, but changes to meteorological parameters are more modest. Top-of-atmospheric forcing predicted by the SOWC model increased by 0.15 W m−2, surface temperature warmed by 0.001 K, and planetary boundary layer height (PBLH) increased by 2.20 cm in the GHG-Step scenario compared to the BAU scenario. PM climate feedbacks are small because the significant changes in ground level PM concentrations associated with the GHG-Step scenario are limited to the first few hundred meters of the atmosphere, with little change for the majority of the vertical column above that level. As an order-of-magnitude comparison, the long-term effects of global reductions in GHG emissions (RCP8.5–RCP4.5) lowered average surface temperature over the California study domain by approximately 0.76 K. The effects of long-lived climate pollutants such as CO2 are much stronger than the effects of short-lived climate pollutants such as PM soot over California in the year 2054. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	CA-TIMES; climate change; LLCP; MARKAL; SLCP; source-oriented
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/185822
作者单位	Department of Civil and Environmental Engineering, University of California Davis, Davis, CA, United States; Department of Space, Earth and Environment, Physical Resource Theory, Chalmers University, Gothenburg, Sweden; Institute of Transportation Studies, University of California, Davis, CA, United States; Department of Land, Air, and Water Resources, University of California, Davis, CA, United States; Now at Atmospheric, Earth, and Energy Division, Lawrence Livermore National Laboratory, Livermore, CA, United States
推荐引用方式 GB/T 7714	Kumar A.,Zapata C.,Yeh S.,et al. Effects of Low-Carbon Energy Adoption on Airborne Particulate Matter Concentrations With Feedbacks to Future Climate Over California[J],2020,125(16).
APA	Kumar A..,Zapata C..,Yeh S..,Yang C..,Ogden J..,...&Kleeman M.J..(2020).Effects of Low-Carbon Energy Adoption on Airborne Particulate Matter Concentrations With Feedbacks to Future Climate Over California.Journal of Geophysical Research: Atmospheres,125(16).
MLA	Kumar A.,et al."Effects of Low-Carbon Energy Adoption on Airborne Particulate Matter Concentrations With Feedbacks to Future Climate Over California".Journal of Geophysical Research: Atmospheres 125.16(2020).