Generation of soot particles in submicron range

Baklanov, A.; Kozlov, V. S.; Panchenko, M. V.; Ankilov, A. N.; Vlasenko, A.

doi:10.1016/s0021-8502(98)90642-5

Cited by 13 publications

(8 citation statements)

References 3 publications

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“…To estimate the contribution of this source and separate the contribution of marine aerosols and aerosols from other continental sources into the chemical composition, it is important to analyze the ratio of the concentrations of individual chemical elements characteristic of sea water in the samples. The ratio of the concentrations of ions Cl -/Na + in our measurements at all sample collection sites 9( fig.4) varies near the value characteristic of sea water, which is equal to 1.8 and falls into the limits of the values obtained by other authors [10][11][12][13][14][15][16]. The range of the values of this ratio obtained by other authors is hatched in the figure.…”

Section: Resultssupporting

confidence: 77%

“…The values of these parameters were averaged for the sample collection sites. One of the main aerosol sources over sea is salt particles generated resulting from breaking sea waves, spraying of sea water and burst of air bubbles reaching the sea surface [10]. These mechanisms mainly determine the aerosol chemical composition in the near-water layer.…”

Section: Resultsmentioning

confidence: 99%

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<title>Investigations of microphysical and chemical composition of aerosol in near-water layer of the atmosphere over the White Sea</title>

et al. 2006

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The peculiarities of spatial-temporal variability of the submicron aerosol number density N Σ (cm -3 ), particle size distribution in the diameter range 0.4 to 10 µm, mass concentration of submicron aerosol Ма (µg/m 3 ) and the mass concentration of black carbon (soot, BC) Ms (µg/m 3 ), as well as chemical composition of particles (ion composition of aerosol soluble fraction) in different regions of White Sea are considered in this paper. The effect of continental and marine sources on formation of the near-water aerosol characteristics is estimated.

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Section: Resultssupporting

confidence: 77%

Section: Resultsmentioning

confidence: 99%

<title>Investigations of microphysical and chemical composition of aerosol in near-water layer of the atmosphere over the White Sea</title>

et al. 2006

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“…The absolute calibration of the aethalometer was based on the comparison of the data of synchronous optical and gravimetric measurements of BC aerosol (Baklanov, et al,1998) used, which were formed in the pyrolysis of butanol vapors in a nitrogen atmosphere at a temperature of 1150C.…”

Section: Equipment For Measurement Of Black Carbon and Aerosol Scatte...mentioning

confidence: 99%

Integrated airborne investigation of the air composition over the Russian Sector of the Arctic

Belan

Ancellet

Андреева

et al. 2022

Preprint

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Abstract. The change of the global climate is most pronounced in the Arctic, where the air temperature increases two to three times faster than the global average. This process is associated with an increase in the concentration of greenhouse gases in the atmosphere. There are publications predicting the sharp increase of methane emissions into the atmosphere due to permafrost thawing. Therefore, it is important to study how the air composition in the Arctic changes in the changing climate. In the Russian sector of the Arctic, the air composition was measured only in the surface atmospheric layer at the coastal stations or earlier at the drifting stations. Vertical distributions of gas constituents of the atmosphere and aerosol were determined only in few small regions. That is why the integrated experiment was carried out to measure the composition of the troposphere in the entire Russian sector of the Arctic from onboard the Optik Tu-134 aircraft laboratory in the period of September 4 to 17 of 2020. The aircraft laboratory was equipped with contact and remote measurement facilities. The contact facilities were capable of measuring the concentrations of CO2, CH4, O3, CO, NOX, and SO2, as well as the disperse composition of particles in the size range from 3 nm to 32 µm, black carbon, organic and inorganic components of atmospheric aerosol. The remote facilities were operated to measure the water transparency in the upper layer of the ocean, the chlorophyll content in water, and spectral characteristics of the underlying surface. The measured data have shown that the ocean continues absorbing СО2. This process is most intense over the Barents and Kara Seas. The recorded methane concentration was increased over all the arctic seas, reaching 2090 ppb in the near-water layer over the Kara Sea. The contents of other gas components and black carbon were close to the background level. In bioaerosol, bacteria predominated among the identified microorganisms. In most samples, they were represented by coccal forms, less often spore-forming and non-spore-bearing rod-shaped bacteria. No dependence of the representation of various bacterial genera on the height and the sampling site was revealed. The most turbid during the experiment was the upper layer of the Chukchi and Bering Seas. The Barents Sea turned out to be the most transparent. The differences in extinction varied more than 1.5 times. In all measurements, except for the Barents Sea, the tendency to an increase in chlorophyll fluorescence in more transparent waters was observed.

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“…We conducted an absolute calibration of the aethalometer in the laboratory, comparing optical and gravimetric measurements [ Baklanov et al , 1998]. The soot particles used in the process range between 50 and 200 nm.…”

Section: Instrumentation and Data Collectionmentioning

confidence: 99%

Aerosol optical and microphysical properties over the Atlantic Ocean during the 19th cruise of the Research Vessel Akademik Sergey Vavilov

et al. 2007

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Generation of soot particles in submicron range

Cited by 13 publications

References 3 publications

<title>Investigations of microphysical and chemical composition of aerosol in near-water layer of the atmosphere over the White Sea</title>

<title>Investigations of microphysical and chemical composition of aerosol in near-water layer of the atmosphere over the White Sea</title>

Integrated airborne investigation of the air composition over the Russian Sector of the Arctic

Aerosol optical and microphysical properties over the Atlantic Ocean during the 19th cruise of the Research Vessel Akademik Sergey Vavilov

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