气候变化领域集成服务门户(CCPortal): OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) sea spray organic aerosol emissions - implementation in a global climate model and impacts on clouds

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DOI	10.5194/acp-22-5223-2022
	OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) sea spray organic aerosol emissions - implementation in a global climate model and impacts on clouds
	Burrows, Susannah M.; Easter, Richard C.; Liu, Xiaohong; Ma, Po-Lun; Wang, Hailong; Elliott, Scott M.; Singh, Balwinder; Zhang, Kai; Rasch, Philip J.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	5223
结束页码	5251
卷号	22 期号:8 页码:29
英文摘要	Sea spray aerosol is one of the major sources of atmospheric particulate matter globally. It has increasingly been recognized that organic matter derived from ocean biological precursors contributes significantly to the composition of submicron sea spray and may modify sea spray aerosol impacts on clouds and climate. This paper describes the implementation of the OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) parameterization for sea spray organic aerosol emissions in a global Earth system model, the Energy Exascale Earth System Model (E3SM). OCEANFILMS is a physically based model that links sea spray chemistry with ocean biogeochemistry using a Langmuir partitioning approach. We describe the implementation details of OCEANFILMS within E3SM, compare simulated aerosol fields with observations, and investigate impacts on simulated clouds and climate. Four sensitivity cases are tested, in which organic emissions either strictly add to or strictly replace sea salt emissions (in mass and number) and are either fully internally or fully externally mixed with sea salt. The simulation with internally mixed, added organics agrees reasonably well with observed seasonal cycles of organic matter in marine aerosol and has been selected as the default configuration of the E3SM. In this configuration, sea spray organic aerosol contributes an additional source of cloud condensation nuclei, adding up to 30 cm (3) to Southern Ocean boundary-layer cloud condensation nuclei concentrations (supersaturation D 0.1 %). The addition of this new aerosol source strengthens shortwave radiative cooling by clouds by 0.36Wm (2) in the global annual mean and contributes more than 3.5Wm (2) to summertime zonal mean cloud forcing in the Southern Ocean, with maximum zonal mean impacts of about 4Wm (2) around 50-60 degrees S. This is consistent with a previous topdown, satellite-based empirical estimate of the radiative forcing by sea spray organic aerosol over the Southern Ocean. Through its mechanistic approach, OCEANFILMS offers a path towards improved understanding of the feedbacks between ocean biology, sea spray organic matter, and climate.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000784163100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273371
作者单位	United States Department of Energy (DOE); Pacific Northwest National Laboratory; Texas A&M University System; Texas A&M University College Station; United States Department of Energy (DOE); Los Alamos National Laboratory; University of Washington; University of Washington Seattle
推荐引用方式 GB/T 7714	Burrows, Susannah M.,Easter, Richard C.,Liu, Xiaohong,et al. OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) sea spray organic aerosol emissions - implementation in a global climate model and impacts on clouds[J],2022,22(8):29.
APA	Burrows, Susannah M..,Easter, Richard C..,Liu, Xiaohong.,Ma, Po-Lun.,Wang, Hailong.,...&Rasch, Philip J..(2022).OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) sea spray organic aerosol emissions - implementation in a global climate model and impacts on clouds.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(8),29.
MLA	Burrows, Susannah M.,et al."OCEANFILMS (Organic Compounds from Ecosystems to Aerosols: Natural Films and Interfaces via Langmuir Molecular Surfactants) sea spray organic aerosol emissions - implementation in a global climate model and impacts on clouds".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.8(2022):29.