Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-1027-2019 |
Ice nucleating particles in the marine boundary layer in the Canadian Arctic during summer 2014 | |
Irish, Victoria E.1; Hanna, Sarah J.1; Willis, Megan D.2; China, Swarup3; Thomas, Jennie L.4,5; Wentzell, Jeremy J. B.6; Cirisan, Ana7; Si, Meng1; Leaitch, W. Richard8; Murphy, Jennifer G.2; Abbatt, Jonathan P. D.2; Laskin, Alexander9; Girard, Eric7; Bertram, Allan K.1 | |
2019-01-25 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:2页码:1027-1039 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA; France |
英文摘要 | Ice nucleating particles (INPs) in the Arctic can influence climate and precipitation in the region; yet our understanding of the concentrations and sources of INPs in this region remain uncertain. In the following, we (1) measured concentrations of INPs in the immersion mode in the Canadian Arctic marine boundary layer during summer 2014 on board the CCGS Amundsen, (2) determined ratios of surface areas of mineral dust aerosol to sea spray aerosol, and (3) investigated the source region of the INPs using particle dispersion modelling. Average concentrations of INPs at 15, -20, and 25 degrees C were 0.005, 0.044, and 0.154 L-1, respectively. These concentrations fall within the range of INP concentrations measured in other marine environments. For the samples investigated the ratio of mineral dust surface area to sea spray surface area ranged from 0.03 to 0.09. Based on these ratios and the ice active surface site densities of mineral dust and sea spray aerosol determined in previous laboratory studies, our results suggest that mineral dust is a more important contributor to the INP population than sea spray aerosol for the samples analysed. Based on particle dispersion modelling, the highest concentrations of INPs were often associated with lower-latitude source regions such as the Hudson Bay area, eastern Greenland, or north-western continental Canada. On the other hand, the lowest concentrations were often associated with regions further north of the sampling sites and over Baffin Bay. A weak correlation was observed between INP concentrations and the time the air mass spent over bare land, and a weak negative correlation was observed between INP concentrations and the time the air mass spent over ice and open water. These combined results suggest that mineral dust from local sources is an important contributor to the INP population in the Canadian Arctic marine boundary layer during summer 2014. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456791600003 |
WOS关键词 | MINERAL DUST PARTICLES ; SEA SPRAY AEROSOL ; RELATIVE-HUMIDITY ; FORMING NUCLEI ; MIXING STATE ; AIR ; TERRESTRIAL ; TRANSPORT ; FELDSPAR ; DROPLETS |
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/29515 |
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 Toronto, Dept Chem, 80 St George St, Toronto, ON M5S 3H6, Canada; 3.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA 99354 USA; 4.Univ Grenoble Alpes, Grenoble INP, CNRS, IRD,IGE, F-38000 Grenoble, France; 5.Univ Paris 06, Lab Atmospheres Milieux & Observat Spatiales, 4 Pl Jussieu, F-75252 Paris 05, France; 6.Environm & Climate Change Canada, Air Qual Res Div, 4905 Dufferin St, Toronto, ON M3H 5T4, Canada; 7.Univ Quebec Montreal, Dept Sci Terre & Atmosphere, 201 Ave President Kennedy, Montreal, PQ H2X 3Y7, Canada; 8.Environm & Climate Change Canada, Climate Res Div, 4905 Dufferin St, Toronto, ON M3H 5T4, Canada; 9.Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA |
推荐引用方式 GB/T 7714 | Irish, Victoria E.,Hanna, Sarah J.,Willis, Megan D.,et al. Ice nucleating particles in the marine boundary layer in the Canadian Arctic during summer 2014[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(2):1027-1039. |
APA | Irish, Victoria E..,Hanna, Sarah J..,Willis, Megan D..,China, Swarup.,Thomas, Jennie L..,...&Bertram, Allan K..(2019).Ice nucleating particles in the marine boundary layer in the Canadian Arctic during summer 2014.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(2),1027-1039. |
MLA | Irish, Victoria E.,et al."Ice nucleating particles in the marine boundary layer in the Canadian Arctic during summer 2014".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.2(2019):1027-1039. |
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