Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-15669-2018 |
Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites | |
Si, Meng1; Irish, Victoria E.1; Mason, Ryan H.1; Vergara-Temprado, Jesus2,6; Hanna, Sarah J.1; Ladino, Luis A.3,7; Yakobi-Hancock, Jacqueline D.3; Schiller, Corinne L.4; Wentzell, Jeremy J. B.5; Abbatt, Jonathan P. D.3; Carslaw, Ken S.2; Murray, Benjamin J.2; Bertram, Allan K.1 | |
2018-11-01 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:21页码:15669-15685 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; England; Switzerland; Mexico |
英文摘要 | Despite the importance of ice-nucleating particles (INPs) for climate and precipitation, our understanding of these particles is far from complete. Here, we investigated INPs at three coastal marine sites in Canada, two at midlatitude (Amphitrite Point and Labrador Sea) and one in the Arctic (Lancaster Sound). For Amphitrite Point, 23 sets of samples were analyzed, and for Labrador Sea and Lancaster Sound, one set of samples was analyzed for each location. At all three sites, the ice-nucleating ability on a per number basis (expressed as the fraction of aerosol particles acting as an INP) was strongly dependent on the particle size. For example, at diameters of around 0.2 mu m, approximately 1 in 106 particles acted as an INP at 25 degrees C, while at diameters of around 8 mu m, approximately 1 in 10 particles acted as an INP at 25 degrees C. The ice-nucleating ability on a per surfacearea basis (expressed as the surface active site density, n(s)) was also dependent on the particle size, with larger particles being more efficient at nucleating ice. The n(s) values of supermicron particles at Amphitrite Point and Labrador Sea were larger than previously measured n(s) values of sea spray aerosols, suggesting that sea spray aerosols were not a major contributor to the supermicron INP population at these two sites. Consistent with this observation, a global model of INP concentrations under-predicted the INP concentrations when assuming only marine organics as INPs. On the other hand, assuming only K-feldspar as INPs, the same model was able to reproduce the measurements at a freezing temperature of -25 degrees C, but under-predicted INP concentrations at -15 degrees C, suggesting that the model is missing a source of INPs active at a freezing temperature of -15 degrees C. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000449028500001 |
WOS关键词 | DEPOSIT IMPACTOR MOUDI ; GLOBAL CLIMATE MODEL ; MIXED-PHASE CLOUDS ; SEA SPRAY AEROSOL ; MINERAL DUST ; RELATIVE-HUMIDITY ; BOUNDARY-LAYER ; FORMING NUCLEI ; FUNGAL SPORES ; LABORATORY EXPERIMENTS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/22751 |
专题 | 地球科学 |
作者单位 | 1.Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada; 2.Univ Leeds, Inst Climate & Atmospher Sci, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England; 3.Univ Toronto, Dept Chem, Toronto, ON M5S3H6, Canada; 4.Environm & Climate Change Canada, Air Qual Sci Unit, Vancouver, BC V6C3S5, Canada; 5.Environm & Climate Change Canada, Air Qual Res Div, Toronto, ON M3H 5T4, Canada; 6.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Zurich, Switzerland; 7.Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Ciudad Univ, Mexico City, DF, Mexico |
推荐引用方式 GB/T 7714 | Si, Meng,Irish, Victoria E.,Mason, Ryan H.,et al. Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(21):15669-15685. |
APA | Si, Meng.,Irish, Victoria E..,Mason, Ryan H..,Vergara-Temprado, Jesus.,Hanna, Sarah J..,...&Bertram, Allan K..(2018).Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(21),15669-15685. |
MLA | Si, Meng,et al."Ice-nucleating ability of aerosol particles and possible sources at three coastal marine sites".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.21(2018):15669-15685. |
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