Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076394 |
Evidence for Diverse Biogeochemical Drivers of Boreal Forest New Particle Formation | |
Lawler, Michael J.1; Rissanen, Matti P.2; Ehn, Mikael2; Mauldin, R. Lee, III2,3; Sarnela, Nina2; Sipila, Mikko2; Smith, James N.1 | |
2018-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
![]() |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:4页码:2038-2046 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Finland |
英文摘要 | New particle formation (NPF) is an important contributor to particle number in many locations, but the chemical drivers for this process are not well understood. Daytime NPF events occur regularly in the springtime Finnish boreal forest and strongly impact aerosol abundance. In April 2014 size-resolved chemical measurements of ambient nanoparticles were made using the Time-of-Flight Thermal Desorption Chemical ionization Mass Spectrometer and we report results from two NPF events. While growth overall was dominated by terpene oxidation products, newly formed 20-70nm particles showed enhancement in apparent alkanoic acids. The events occurred on days with rapid transport of marine air, which correlated with low background aerosol loading and higher gas phase methanesulfonic acid levels. These results are broadly consistent with previous studies on Nordic NPF but indicate that further attention should be given to the sources and role of non-terpenoid organics and the possible contribution of transported marine compounds in this process. Plain Language Summary Clouds are an enormously important part of the climate system because they control the radiation entering and leaving the Earth. Clouds form as water condenses onto small particles called cloud condensation nuclei. These particles can be directly emitted from the Earth's surface, like sea spray, for example, or they can form in the atmosphere out of precursor gases. We have measured the composition of these atmosphere-formed particles to understand better how this process works in the Nordic boreal forest. We found that a diverse mix of processes and molecules are likely involved, possibly including the transport of materials from the ocean. While these results will ultimately lead to a better understanding of ocean-land-cloud interactions, they currently indicate that more work is needed to learn the processes involved. |
英文关键词 | new particle formation nucleation aerosol boreal forest marine atmospheric chemistry |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000427564300040 |
WOS关键词 | IONIZATION MASS-SPECTROMETER ; CLOUD CONDENSATION NUCLEI ; SULFURIC-ACID ; ATMOSPHERIC AEROSOLS ; NUCLEATION EVENTS ; ORGANIC-COMPOUNDS ; GROWTH ; NANOPARTICLES ; HYYTIALA ; SENSITIVITY |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28300 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA; 2.Univ Helsinki, Dept Phys, Helsinki, Finland; 3.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Lawler, Michael J.,Rissanen, Matti P.,Ehn, Mikael,et al. Evidence for Diverse Biogeochemical Drivers of Boreal Forest New Particle Formation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(4):2038-2046. |
APA | Lawler, Michael J..,Rissanen, Matti P..,Ehn, Mikael.,Mauldin, R. Lee, III.,Sarnela, Nina.,...&Smith, James N..(2018).Evidence for Diverse Biogeochemical Drivers of Boreal Forest New Particle Formation.GEOPHYSICAL RESEARCH LETTERS,45(4),2038-2046. |
MLA | Lawler, Michael J.,et al."Evidence for Diverse Biogeochemical Drivers of Boreal Forest New Particle Formation".GEOPHYSICAL RESEARCH LETTERS 45.4(2018):2038-2046. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论