Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-10583-2017 |
Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater | |
Irish, Victoria E.1; Elizondo, Pablo1; Chen, Jessie1; Chou, Cedric1; Charette, Joannie2; Lizotte, Martine3; Ladino, Luis A.4,7; Wilson, Theodore W.5; Gosselin, Michel2; Murray, Benjamin J.5; Polishchuk, Elena1; Abbatt, Jonathan P. D.4; Miller, Lisa A.6; Bertram, Allan K.1 | |
2017-09-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; England; Mexico |
英文摘要 | The sea-surface microlayer and bulk seawater can contain ice-nucleating particles (INPs) and these INPs can be emitted into the atmosphere. Our current understanding of the properties, concentrations, and spatial and temporal distributions of INPs in the microlayer and bulk seawater is limited. In this study we investigate the concentrations and properties of INPs in microlayer and bulk seawater samples collected in the Canadian Arctic during the summer of 2014. INPs were ubiquitous in the microlayer and bulk seawater with freezing temperatures in the immersion mode as high as 14 degrees C. A strong negative correlation (R = -0.7, p = 0.02) was observed between salinity and freezing temperatures (after correction for freezing depression by the salts). One possible explanation is that INPs were associated with melting sea ice. Heat and filtration treatments of the samples show that the INPs were likely heat-labile biological materials with sizes between 0.02 and 0.2 mu m in diameter, consistent with previous measurements off the coast of North America and near Greenland in the Arctic. The concentrations of INPs in the microlayer and bulk seawater were consistent with previous measurements at several other locations off the coast of North America. However, our average microlayer concentration was lower than previous observations made near Greenland in the Arctic. This difference could not be explained by chlorophyll a concentrations derived from satellite measurements. In addition, previous studies found significant INP enrichment in the microlayer, relative to bulk seawater, which we did not observe in this study. While further studies are needed to understand these differences, we confirm that there is a source of INP in the microlayer and bulk seawater in the Canadian Arctic that may be important for atmospheric INP concentrations. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409983100004 |
WOS关键词 | CLOUD RESOLVING SIMULATIONS ; SPRAY AEROSOL ; FORMING NUCLEI ; MARINE AIR ; PHASE ; WATERS ; OCEAN ; SENSITIVITY ; ABUNDANCE ; STRATUS |
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/28336 |
专题 | 地球科学 |
作者单位 | 1.Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada; 2.Univ Quebec, Inst Sci Mer Rimouski, 310 Allee Ursulines, Rimouski, PQ G5L 3A1, Canada; 3.Univ Laval, Dept Biol, Quebec Ocean, Quebec City, PQ G1V 0A6, Canada; 4.Univ Toronto, Dept Chem, 80 St George St, Toronto, ON M5S 3H6, Canada; 5.Univ Leeds, Inst Climate & Atmospher Sci, Sch Earth & Environm, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England; 6.Fisheries & Oceans Canada, Inst Ocean Sci, Sidney, BC V8L 4B2, Canada; 7.Univ Nacl Autonoma Mexico, Ctr Ciencias Atmosfera, Ciudad Univ, Mexico City, DF, Mexico |
推荐引用方式 GB/T 7714 | Irish, Victoria E.,Elizondo, Pablo,Chen, Jessie,et al. Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(17). |
APA | Irish, Victoria E..,Elizondo, Pablo.,Chen, Jessie.,Chou, Cedric.,Charette, Joannie.,...&Bertram, Allan K..(2017).Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(17). |
MLA | Irish, Victoria E.,et al."Ice-nucleating particles in Canadian Arctic sea-surface microlayer and bulk seawater".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.17(2017). |
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