气候变化领域集成服务门户(CCPortal): Primary and secondary ice production: interactions and their relative importance

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DOI	10.5194/acp-22-2585-2022
	Primary and secondary ice production: interactions and their relative importance
	Zhao, Xi; Liu, Xiaohong
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	2585
结束页码	2600
卷号	22 期号:4 页码:16
英文摘要	A discrepancy of up to 5 orders of magnitude between ice crystal and ice nucleating particle (INP) number concentrations was found in the measurements, indicating the potentially important role of secondary ice production (SIP) in the clouds. However, the interactions between primary and SIP processes and their relative importance remain unexplored. In this study, we implemented five different ice nucleation schemes as well as physical representations of SIP processes (i.e., droplet shattering during rain freezing, ice-ice collisional breakup, and rime splintering) in the Community Earth System Model version 2 (CESM2). We ran CESM2 in the single column mode for model comparisons with the DOE Atmospheric Radiation Measurement (ARM) Mixed-Phase Arctic Cloud Experiment (M-PACE) observations. We found that the model experiments with aerosol-aware ice nucleation schemes and SIP processes yield the best simulation results for the M-PACE single-layer mixed-phase clouds. We further investigated the relative importance of ice nucleation and SIP to ice number and cloud phase as well as interactions between ice nucleation and SIP in the M-PACE single-layer mixed-phase clouds. Our results show that SIP contributes 80% to the total ice formation and transforms similar to 30% of pure liquid-phase clouds simulated in the model experiments without considering SIP into mixed-phase clouds. The SIP is not only a result of ice crystals produced from ice nucleation, but also competes with the ice nucleation by reducing the number concentrations of cloud droplets and cloud-borne dust INPs. Conversely, strong ice nucleation also suppresses SIP by glaciating mixed-phase clouds and thereby reducing the amount of precipitation particles (rain and graupel).
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:000763283900001
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/273862
作者单位	Texas A&M University System; Texas A&M University College Station
推荐引用方式 GB/T 7714	Zhao, Xi,Liu, Xiaohong. Primary and secondary ice production: interactions and their relative importance[J],2022,22(4):16.
APA	Zhao, Xi,&Liu, Xiaohong.(2022).Primary and secondary ice production: interactions and their relative importance.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(4),16.
MLA	Zhao, Xi,et al."Primary and secondary ice production: interactions and their relative importance".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.4(2022):16.