干旱区生态环境知识资源中心(Arid): Hygroscopicity and Ice Nucleation Properties of Dust/Salt Mixtures Originating from the Source of East Asian Dust Storms

Arid

DOI	10.3389/fenvs.2022.897127
	Hygroscopicity and Ice Nucleation Properties of Dust/Salt Mixtures Originating from the Source of East Asian Dust Storms
	Li, Jun; Liu, Wanyu; Castarede, Dimitri; Gu, Wenjun; Li, Linjie; Ohigashi, Takuji; Zhang, Guiqian; Tang, Mingjin; Thomson, Erik S.; Hallquist, Mattias; Wang, Sen; Kong, Xiangrui
通讯作者	Wang, S
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2022
卷号	10
英文摘要	Dust storms are common meteorological events that occur frequently in the late spring and early summer in arid and semi-arid areas. The resulting lofted dust and salt mixtures can impact atmospheric chemistry and climate systems through the many pathways represented by aerosol-cloud-climate interactions. In this study, dust/salt samples were collected from important sources of the East Asian dust storm, including the Badain Jaran Desert, the Tengger Desert and the Ulan Buh Desert in northwestern China. Ion chromatography (IC) measurements were performed to determine the concentrations of cations and anions. The ionic concentrations, pH and dissolvable fractions of sand samples show a positive correlation, indicating that the dissolved content is rich in alkaline ions. A positive matrix factorization (PMF) receptor model was employed to analyze the IC results, and from the PMF solutions non-obvious connections to local geography emerge. The results of hygroscopic experiments of sand samples which were measured by a vapor sorption analyzer indicate that the hygroscopicity may be related to the soluble content of samples, and the observed hygroscopic behavior can be well described by a thermodynamic model. The morphology of individual particles was chemically mapped by the synchrotron-based scanning transmission X-ray microscopy, and needle-shaped CaCO3 particles were observed to adhere to more irregular high K-containing particles. Moreover, a continuous flow diffusion chamber was used to investigate the ice nucleation abilities of typical salts, with both homogeneous freezing and deposition nucleation being observed. The results indicate that the salts primarily act as cloud condensation nuclei but can also act as ice nucleating particles at low temperatures.
英文关键词	ice nucleation hygroscopicity AIOMFAC ion chromatography STXM PMF
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000814561300001
WOS关键词	BADAIN JARAN DESERT ; MINERAL DUST ; WATER-ADSORPTION ; THERMODYNAMIC MODEL ; CLOUD CONDENSATION ; SOURCE REGIONS ; AEROSOL ; SURFACE ; PARTICLES ; HOLOCENE
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392723
推荐引用方式 GB/T 7714	Li, Jun,Liu, Wanyu,Castarede, Dimitri,et al. Hygroscopicity and Ice Nucleation Properties of Dust/Salt Mixtures Originating from the Source of East Asian Dust Storms[J],2022,10.
APA	Li, Jun.,Liu, Wanyu.,Castarede, Dimitri.,Gu, Wenjun.,Li, Linjie.,...&Kong, Xiangrui.(2022).Hygroscopicity and Ice Nucleation Properties of Dust/Salt Mixtures Originating from the Source of East Asian Dust Storms.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Li, Jun,et al."Hygroscopicity and Ice Nucleation Properties of Dust/Salt Mixtures Originating from the Source of East Asian Dust Storms".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).