Interactive Photochemistry in Earth System Models to Assess Uncertainty in Ozone and Greenhouse Gases. Final report

doi:10.2172/1163479

GSTDTAP > 地球科学

DOI	10.2172/1163479
报告编号	DOE-UCI--0007021
来源ID	OSTI ID: 1163479
	Interactive Photochemistry in Earth System Models to Assess Uncertainty in Ozone and Greenhouse Gases. Final report
	Prather, Michael J.; Hsu, Juno; Nicolau, Alex; Veidenbaum, Alex
	2014-11-07
出版年	2014
页数	4
语种	英语
国家	美国
领域	地球科学
英文摘要	Atmospheric chemistry controls the abundances and hence climate forcing of important greenhouse gases including N₂O, CH₄, HFCs, CFCs, and O₃. Attributing climate change to human activities requires, at a minimum, accurate models of the chemistry and circulation of the atmosphere that relate emissions to abundances. This DOE-funded research provided realistic, yet computationally optimized and affordable, photochemical modules to the Community Earth System Model (CESM) that augment the CESM capability to explore the uncertainty in future stratospheric-tropospheric ozone, stratospheric circulation, and thus the lifetimes of chemically controlled greenhouse gases from climate simulations. To this end, we have successfully implemented Fast-J (radiation algorithm determining key chemical photolysis rates) and Linoz v3.0 (linearized photochemistry for interactive O₃, N₂O, NO_y and CH₄) packages in LLNL-CESM and for the first time demonstrated how change in O2 photolysis rate within its uncertainty range can significantly impact on the stratospheric climate and ozone abundances. From the UCI side, this proposal also helped LLNL develop a CAM-Superfast Chemistry model that was implemented for the IPCC AR5 and contributed chemical-climate simulations to CMIP5.
英文关键词	atmospheric radiation-chemistry-dynamics interaction stratospheric ozone linearized ozone scheme tropopause Fast-J GPUs uncertainty quantification
URL	查看原文
来源平台	US Department of Energy (DOE)
引用统计
文献类型	科技报告
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/6592
专题	地球科学
推荐引用方式 GB/T 7714	Prather, Michael J.,Hsu, Juno,Nicolau, Alex,et al. Interactive Photochemistry in Earth System Models to Assess Uncertainty in Ozone and Greenhouse Gases. Final report,2014.