气候变化领域集成服务门户(CCPortal): Chemical characteristics of the assigned elemental formulas from the FT-ICR MS data of Arctic aerosol-derived organic matter collected in Ny-Ålesund in May 2015

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.905595
	Chemical characteristics of the assigned elemental formulas from the FT-ICR MS data of Arctic aerosol-derived organic matter collected in Ny-Ålesund in May 2015
	Jang; Kyoung-Soon; Park; Ki-Tae
发布日期	2019-09-05
数据集类型	dataset
英文简介	We use an ultrahigh-resolution 15 Tesla Fourier transform ion cyclotron resonance mass spectrometer (15T FT-ICR MS) to elucidate the compositional changes in Arctic organic aerosols collected at Ny-Ålesund, Svalbard, in May 2015. The FT-ICR MS analysis of airborne organic matter provided information on the molecular compositions of aerosol particles collected during the Arctic spring period. The air mass transport history, combined with satellite-derived geographical information and chlorophyll concentration data, revealed that the molecular compositions of organic aerosols drastically differed depending on the origin of the potential source region. The protein and lignin compound populations contributed more than 70% of the total intensity of assigned molecules when the air masses mainly passed over the ocean region. Interestingly, the intensity of microbe-derived organics (protein and carbohydrate compounds) was positively correlated with the air mass exposure to phytoplankton biomass proxied as chlorophyll. Furthermore, the intensities of lignin and unsaturated hydrocarbon compounds, typically derived from terrestrial vegetation, increased with an increase in the advection time of the air mass over the ocean domain. These results suggest that the accumulation of dissolved biogenic organics in the Arctic Ocean possibly derived from both phytoplankton and terrestrial vegetation could significantly influence the chemical properties of Arctic organic aerosols during a productive spring period. The interpretation of molecular changes in organic aerosols using an ultrahigh-resolution mass spectrometer could provide deep insight for understanding organic aerosols in the atmosphere over the Arctic and the relationship of organic aerosols with biogeochemical processes in terms of aerosol formation and environmental changes.
空间范围	Latitude: 78.925600 * Longitude: 11.937700
时间范围	2015-04-29T00:00:00 - 2015-05-20T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215129
推荐引用方式 GB/T 7714	Jang,Kyoung-Soon,Park,et al. Chemical characteristics of the assigned elemental formulas from the FT-ICR MS data of Arctic aerosol-derived organic matter collected in Ny-Ålesund in May 2015.2019-09-05.https://doi.org/10.1594/PANGAEA.905595.