Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030913 |
Ice Nucleation by Marine Aerosols Over the North Atlantic Ocean in Late Spring | |
Wilbourn, Elise K.1; Thornton, Daniel C. O.1; Ott, Catherine2; Graff, Jason3; Quinn, Patricia K.4; Bates, Timothy S.4,5,6; Betha, Raghu6,7; Russell, Lynn M.; Behrenfeld, Michael J.3; Brooks, Sarah D.2 | |
2020-02-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Here we report the ice nucleating temperatures of marine aerosols sampled in the subarctic Atlantic Ocean during a phytoplankton bloom. Ice nucleation measurements were conducted on primary aerosol samples and phytoplankton isolated from seawater samples. Primary marine aerosol samples produced by a specialized aerosol generator (the Sea Sweep) catalyzed droplet freezing at temperatures between -33.4 degrees C and - 24.5 degrees C, with a mean freezing temperature of -28.5 degrees C, which was significantly warmer than the homogeneous freezing temperature of pure water in the atmosphere (-36 degrees C). Following a storm-induced deep mixing event, ice nucleation activity was enhanced by two metrics: (1) the fraction of aerosols acting as ice nucleating particles (INPs) and (2) the nucleating temperatures, which were the warmest observed throughout the project. Seawater samples were collected from the ocean's surface and phytoplankton groups, including Synechococcus, picoeukaryotes, and nanoeukaryotes, were isolated into sodium chloride sheath fluid solution using a cell-sorting flow cytometer. Marine aerosol containing Synechococcus, picoeukaryotes, and nanoeukaryotes serves as INP at temperatures significantly warmer than the homogeneous freezing temperature of pure water in the atmosphere. Samples containing whole organisms in 30 g L-1 NaCl had freezing temperatures between -33.8 and - 31.1 degrees C. Dilution of samples to representative atmospheric aerosol salt concentrations (as low as 3.75 g L-1 NaCl) raised freezing temperatures to as high as -22.1 degrees C. It follows that marine aerosols containing phytoplankton may have widespread influence on marine ice nucleation events by facilitating ice nucleation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000519227000036 |
WOS关键词 | SEA-SURFACE MICROLAYER ; FORMING NUCLEI ; ACTIVE-SITES ; PARTICLES ; PHYTOPLANKTON ; CARBON ; SPRAY ; PHASE ; PROCHLOROCOCCUS ; ASSOCIATION |
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/280085 |
专题 | 气候变化 |
作者单位 | 1.Texas A&M Univ, Dept Oceanog, College Stn, TX 77843 USA; 2.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA; 3.Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 USA; 4.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA; 5.Univ Washington, Joint Inst Study Atmosphere & Oceans, Seattle, WA 98195 USA; 6.Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA; 7.Texas Tech Univ, Dept Civil Environm & Construct Engn, Lubbock, TX 79409 USA |
推荐引用方式 GB/T 7714 | Wilbourn, Elise K.,Thornton, Daniel C. O.,Ott, Catherine,et al. Ice Nucleation by Marine Aerosols Over the North Atlantic Ocean in Late Spring[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(4). |
APA | Wilbourn, Elise K..,Thornton, Daniel C. O..,Ott, Catherine.,Graff, Jason.,Quinn, Patricia K..,...&Brooks, Sarah D..(2020).Ice Nucleation by Marine Aerosols Over the North Atlantic Ocean in Late Spring.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(4). |
MLA | Wilbourn, Elise K.,et al."Ice Nucleation by Marine Aerosols Over the North Atlantic Ocean in Late Spring".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.4(2020). |
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