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DOI | 10.1016/j.atmosres.2019.104795 |
Atmospheric ice nuclei concentration measurements over a high altitude-station in the Western Ghats, India | |
Kumar, V. Anil1,4; Pandithurai, G.1; Kulkarni, Gourihar2; Hazra, Anupam1; Patil, Sachin S.1; Dudhambe, Shrikant D.1; Patil, Rohit D.1; Chen, Jen-Ping3; Niranjan, K.4 | |
2020-05-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2020 |
卷号 | 235 |
文章类型 | Article |
语种 | 英语 |
国家 | India; USA; Taiwan |
英文摘要 | Mixed-phase and ice clouds play a significant role in modulating the Indian summer monsoon rainfall, and modeling studies suggest that inaccurate representation of ice nucleating particles (INP) is one of the factors, which have resulted in a deficiency in the prediction of cloud properties and hydrological cycle. We do not understand the ice nucleation mechanisms to represent the ice formation in the model, and therefore more INP measurements at various supercooled temperatures are needed. This study reports for the first time real-time INP concentration at a high altitude station in the Western Ghats region of India, and these results will be used to constrain the ice nucleation parameterizations in the model. The variation of INP for any particular cloud condition can have strong microphysical responses of mixed-phase precipitation formation processes. Also, to improve the representation of heterogeneous ice nucleation, INP measurements of various types of aerosols commonly observed over the Indian region are needed. This study presents, the INP concentrations and daily concentration of non-refractory chemical composition (organics, sulfate, nitrate, ammonium, and chloride), cloud condensation nuclei (CCN), and aerosol size distribution. Spectrometer for Ice Nuclei (SPIN) was operated to measure INP concentration at the mountain site from August to December 2018. INP measurements were performed at three different temperatures ( -25, -30, and - 34 degrees C) in the immersion freezing mode relevant for mixed-phase cloud conditions. The average INP concentrations approximately varied from 0.18 to 12.4 L-1, 0.39 to 24 L-1, 1.1 to 40.2 L-1 at -25, -30, and - 34 degrees C, respectively. These concentrations are within the concentrations reported in the literature from different regions across the globe. The air mass back trajectory analysis showed that continental air mass contains more INP compared to maritime air mass. The information on INP concentration and chemical characteristics of aerosol will help to improve heterogeneous ice nucleation parameterization in numerical models. |
英文关键词 | Ice nuclei Continuous flow diffusion chamber Aerosol properties |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000525322800003 |
WOS关键词 | MINERAL DUST PARTICLES ; ORGANIC AEROSOL ; SEASONAL VARIABILITY ; NUCLEATING AEROSOL ; CLOUD ; PRECIPITATION ; INSTRUMENT ; IMPACTS ; CHAMBER ; SITE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278846 |
专题 | 地球科学 |
作者单位 | 1.Indian Inst Trop Meteorol, Pune 411008, Maharashtra, India; 2.Pacific Northwest Natl Lab, Richland, WA 99352 USA; 3.Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10673, Taiwan; 4.Andhra Univ, Coll Sci & Technol, Dept Phys, Visakhapatnam, Andhra Pradesh, India |
推荐引用方式 GB/T 7714 | Kumar, V. Anil,Pandithurai, G.,Kulkarni, Gourihar,et al. Atmospheric ice nuclei concentration measurements over a high altitude-station in the Western Ghats, India[J]. ATMOSPHERIC RESEARCH,2020,235. |
APA | Kumar, V. Anil.,Pandithurai, G..,Kulkarni, Gourihar.,Hazra, Anupam.,Patil, Sachin S..,...&Niranjan, K..(2020).Atmospheric ice nuclei concentration measurements over a high altitude-station in the Western Ghats, India.ATMOSPHERIC RESEARCH,235. |
MLA | Kumar, V. Anil,et al."Atmospheric ice nuclei concentration measurements over a high altitude-station in the Western Ghats, India".ATMOSPHERIC RESEARCH 235(2020). |
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