气候变化领域集成服务门户(CCPortal): Micro-spectroscopic and freezing characterization of ice-nucleating particles collected in the marine boundary layer in the eastern North Atlantic

CCPortal

DOI	10.5194/acp-22-5377-2022
	Micro-spectroscopic and freezing characterization of ice-nucleating particles collected in the marine boundary layer in the eastern North Atlantic
	Knopf, Daniel A.; Charnawskas, Joseph C.; Wang, Peiwen; Wong, Benny; Tomlin, Jay M.; Jankowski, Kevin A.; Fraund, Matthew; Veghte, Daniel P.; China, Swarup; Laskin, Alexander; Moffet, Ryan C.; Gilles, Mary K.; Aller, Josephine Y.; Marcus, Matthew A.; Raveh-Rubin, Shira; Wang, Jian
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	5377
结束页码	5398
卷号	22 期号:8 页码:22
英文摘要	Formation of atmospheric ice plays a crucial role in the microphysical evolution of mixed-phase and cirrus clouds and thus climate. How aerosol particles impact ice crystal formation by acting as ice-nucleating particles (INPs) is a subject of intense research activities. To improve understanding of atmospheric INPs, we examined daytime and nighttime particles collected during the Aerosol and Cloud Experiments in the Eastern North Atlantic (ACE-ENA) field campaign conducted in summer 2017. Collected particles, representative of a remote marine environment, were investigated for their propensity to serve as INPs in the immersion freezing (IMF) and deposition ice nucleation (DIN) modes. The particle population was characterized by chemical imaging techniques such as computer-controlled scanning electron microscopy with energy-dispersive X-ray analysis (CCSEM/EDX) and scanning transmission X-ray microscopy with near-edge X-ray absorption fine-structure spectroscopy (STXM/NEXAFS). Four major particle-type classes were identified where internally mixed inorganic-organic particles make up the majority of the analyzed particles. Following ice nucleation experiments, individual INPs were identified and characterized by SEM/EDX. The identified INP types belong to the major particle-type classes consisting of fresh sea salt with organics or processed sea salt containing dust and sulfur with organics. Ice nucleation experiments show IMF events at temperatures as low as 231 K, including the subsaturated regime. DIN events were observed at lower temperatures of 210 to 231 K. IMF and DIN observations were analyzed with regard to activated INP fraction, ice-nucleation active site (INAS) densities, and a water activity-based immersion freezing model (ABIFM) yielding heterogeneous ice nucleation rate coefficients. Observed IMF and DIN events of ice formation and corresponding derived freezing rates demonstrate that the marine boundary layer aerosol particles can serve as INPs under typical mixed-phase and cirrus cloud conditions. The derived IMF and DIN parameterizations allow for implementation in cloud and climate models to evaluate predictive effects of atmospheric ice crystal formation.
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:000786550900001
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/273048
作者单位	State University of New York (SUNY) System; State University of New York (SUNY) Stony Brook; Purdue University System; Purdue University; Purdue University West Lafayette Campus; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; United States Department of Energy (DOE); Pacific Northwest National Laboratory; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; United States Department of Energy (DOE); Lawrence Berkeley National Laboratory; Weizmann Institute of Science; Washington University (WUSTL); University System of Ohio; Ohio State University
推荐引用方式 GB/T 7714	Knopf, Daniel A.,Charnawskas, Joseph C.,Wang, Peiwen,et al. Micro-spectroscopic and freezing characterization of ice-nucleating particles collected in the marine boundary layer in the eastern North Atlantic[J],2022,22(8):22.
APA	Knopf, Daniel A..,Charnawskas, Joseph C..,Wang, Peiwen.,Wong, Benny.,Tomlin, Jay M..,...&Wang, Jian.(2022).Micro-spectroscopic and freezing characterization of ice-nucleating particles collected in the marine boundary layer in the eastern North Atlantic.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(8),22.
MLA	Knopf, Daniel A.,et al."Micro-spectroscopic and freezing characterization of ice-nucleating particles collected in the marine boundary layer in the eastern North Atlantic".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.8(2022):22.