Aerosol Particle Formation Events at Two Siberian Stations

Maso, Miikka Dal; Sogacheva, Larisa; Vlasov, A. A.; Staroverova, A.; Lushnikov, A.A.; Anisimov, M. A.; Zagaynov, V. A.; Ходжер, Т. В.; Оболкин, В. А.; Lyubotseva, Yu S.; Kulmala, Markku; Riipinen, Ilona; Kerminen, Veli‐Matti

doi:10.1007/978-1-4020-6475-3_166

Cited by 26 publications

(17 citation statements)

References 3 publications

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“…Then, 45% of NPF events were detected at noon, 33% were observed in the afternoon and only 11% in the morning. These frequencies are consistent with continuous measurements at different ground sites Vehkamäki et al, 2004;Dal Maso et al, 2008;Hussein et al, 2008;Kuang et al, 2008;Laaksonen et al, 2008;Yu et al, 2008).…”

Section: Observation Of Atmospheric Nucleationsupporting

confidence: 90%

New particle formation events measured on board the ATR-42 aircraft during the EUCAARI campaign

Crumeyrolle¹,

Manninen

Sellegri³

et al. 2010

Atmos. Chem. Phys.

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Abstract. Aerosol properties were studied during an intensive airborne measurement campaign that took place at Rotterdam in Netherlands in May 2008 within the framework of the European Aerosol Cloud Climate and Air Quality Interactions project (EUCAARI). The objective of this study is to illustrate seven events of new particle formation (NPF) observed with two Condensation Particle Counters (CPCs) operated on board the ATR-42 research aircraft in airsectors around Rotterdam, and to provide information on the spatial extent of the new particle formation phenomenon based on 1-s resolution measurements of ultra-fine particle (in the size range 3-10 nm diameter, denoted N 3−10 hereafter) concentrations. The results show that particle production occurred under the influence of different air mass origins, at different day times and over the North Sea as well as over the continent. The number concentration of freshly nucleated particles (N 3−10 ) varied between 5000 and 100 000 cm −3 within the boundary layer (BL). Furthermore the vertical extension for all nucleation events observed on the ATR-42 never exceeded the upper limit of the BL. The horizontal extent of N 3−10 could not be delimited due to inflexible flight plans which could not be modified to accommodate real-time results. However, the NPF events were observed over geographically large areas; typically the horizontal extension was about 100 km and larger.

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Section: Observation Of Atmospheric Nucleationsupporting

confidence: 90%

New particle formation events measured on board the ATR-42 aircraft during the EUCAARI campaign

Crumeyrolle¹,

Manninen

Sellegri³

et al. 2010

Atmos. Chem. Phys.

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“…While our measurement setup does not allow the observation of the nucleation mode below 10 nm, the summer pristine air at ZOTTO is generally dominated by the Aitken mode around 50 nm (Fig. 11d), in line with previous observations (Mäkelä et al, 1997;Tunved et al, 2006;Dal Maso et al, 2008).…”

Section: Clean Summer Airsupporting

confidence: 89%

“…9b). This rate is comparable to that at other Siberian remote sites, e.g., at Lake Baikal (Dal Maso et al, 2007), but lower than the 4.5 nm h −1 observed at Tomsk (Dal Maso et al, 2007), and higher than the 0.5-0.7 nm h −1 at the Finnish station Hyytiälä (Tunved et al, 2006). We assume that both condensation and coagulation contributed to the particle growth in this period.…”

Section: Polluted Summer Airsupporting

confidence: 74%

Long-term measurements of aerosol and carbon monoxide at the ZOTTO tall tower to characterize polluted and pristine air in the Siberian taiga

et al. 2013

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Abstract. Siberia is one of few continental regions in the Northern Hemisphere where the atmosphere may sometimes approach pristine background conditions. We present the time series of aerosol and carbon monoxide (CO) measurements between September 2006 and December 2011 at the Zotino Tall Tower Observatory (ZOTTO) in Central Siberia (61 • N; 89 • E). We investigate the seasonal, weekly and diurnal variations of aerosol properties (including absorption and scattering coefficients and derived parameters, such as equivalent black carbon (BC e ), Ångström exponent, single scattering albedo, and backscattering ratio) and the CO mixing ratios. Criteria were established to distinguish polluted from near-pristine air masses, providing quantitative characteristics for each type. Depending on the season, 23-36 % of the sampling time at ZOTTO was found to be representative of a clean atmosphere. The summer pristine data indicate that primary biogenic and secondary organic aerosol formation are quite strong particle sources in the Siberian taiga. The summer seasons 2007-2008 were dominated by an Aitken mode around 80 nm size, whereas the summer 2009 with prevailing easterly winds produced particles in the accumulation mode around 200 nm size. We found these differences to be mainly related to air temperature, through its effect on the production rates of biogenic volatile organic compounds (VOC) precursor gases. In winter, the particle size distribution peaked at 160 nm, and the footprint of clean background air was characteristic for aged particles from anthropogenic sources at great distances from ZOTTO and diluted biofuel burning emissions from domestic heating. The wintertime polluted air originates mainly from large cities south and southwest of the site; these particles have a dominant mode around 100 nm, and the BC e / CO ratio of 7-11 ng m −3 ppb −1 suggests dominant contributions from coal and biofuel burning for heating. During summer, anthropogenic emissions are the dominant contributor to the pollution particles at ZOTTO, while only 12 % of the polluted events are classified as biomass-burning-dominated, but then often associated with extremely high CO concentrations and aerosol absorption coefficients. Two biomass-burning case studies revealed different BC e / CO ratios from different fire types, with the agricultural fires in April 2008 yielding a very high ratio of 21 ng m −3 ppb −1 . Overall, we find that anthropogenic sources dominate the aerosol population at ZOTTO most of the time, even during nominally clean episodes in winter, and that near-pristine conditions are encountered only in the growing season and then only episodically.

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“…Besides its wetlands (Worthy et al, 2000), the large Siberian permafrost regions are high-risk areas in the global climate system (Zimov et al, 2006). The large boreal forests are also an important source of biogenic volatile organic gases (Rinne et al, 2009;Timkovsky et al, 2010), which are connected with the formation of natural aerosol particles over the forests (Tunved et al, 2006;Dal Maso et al, 2008). Every year, extensive forest fires occur in Siberia, the smoke of which is distributed globally (e.g.…”

Section: Introductionmentioning

confidence: 99%

Mapping the aerosol over Eurasia from the Zotino Tall Tower

Heintzenberg

Birmili

Seifert

et al. 2013

Tellus B: Chemical and Physical Meteorology

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A B S T R A C TThe present study covers more than 5 yr corresponding to more than 40 000 hours of particle and gas data measured at the Siberian tall tower Zotino Tall Tower (ZOTTO) (60.88N; 89.358E). Extrapolated along 10-d back trajectories, the ZOTTO measurements cover large parts of the Eurasian land mass. Mapping the extrapolated ZOTTO data points to major anthropogenic source regions and Siberian fire regions, consistent with emission data for CO and vegetation fires. Middle East mid-latitude sources stand out strongly and possibly emissions from Northern China may be seen at times from ZOTTO. The maps of measured light scattering and absorption characteristics support the interpretation of different source types. Three clusters of substantially different submicrometer particle size distributions were found, the maps of which also could be related to major aerosol source regions.

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Aerosol Particle Formation Events at Two Siberian Stations

Cited by 26 publications

References 3 publications

New particle formation events measured on board the ATR-42 aircraft during the EUCAARI campaign

New particle formation events measured on board the ATR-42 aircraft during the EUCAARI campaign

Long-term measurements of aerosol and carbon monoxide at the ZOTTO tall tower to characterize polluted and pristine air in the Siberian taiga

Mapping the aerosol over Eurasia from the Zotino Tall Tower

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