搜索结果: 1-15 共查到“知识库 大气科学 growth”相关记录58条 . 查询时间(0.278 秒)
Simulating condensational growth, evaporation, and coagulation of aerosols using a combined moving and stationary size grid
Simulating condensational growth evaporation coagulation aerosols
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2015/7/6
Simulating condensational growth, evaporation, and coagulation of aerosols using a combined moving and stationary size grid.
Reconciliation of measurements of hygroscopic growth and critical supersaturation of aerosol particles in central Germany
hygroscopic growth critical supersaturation aerosol particles central Germany
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2010/12/28
Aerosol physical, chemical and hygroscopic properties were measured in a range of airmasses during COPS (Convective and Orographically-induced Precipitation Study) ground-based in June and July of 200...
Sub-10 nm particle growth by vapor condensation – effects of vapor molecule size and particle thermal speed
Sub-10 nm particle vapor condensation vapor molecule size particle thermal speed
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2010/10/21
The growth of freshly formed nanoparticles has been investigated. A new analytical expression based on a recently developed exact solution for the condensational growth rate has been derived. Based on...
Particle formation and growth at five rural and urban sites
Particle formation and growth five rural and urban sites
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2010/9/1
Ultrafine particle (UFP) number and size distributions were simultaneously measured at five urban and rural sites during the summer of 2007 in Ontario, Canada as part of the Border Air Quality and Met...
Hygroscopicity distribution concept for measurement data analysis and modeling of aerosol particle mixing state with regard to hygroscopic growth and CCN activation
Hygroscopicity distribution concept measurement data analysis aerosol particle mixing state hygroscopic growth CCN activation
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2010/8/16
This paper presents a general concept and mathematical framework of particle hygroscopicity distribution for the analysis and modeling of aerosol hygroscopic growth and cloud condensation nucleus (CCN...
Accelerating growth of HFC-227ea (1,1,1,2,3,3,3-heptafluoropropane) in the atmosphere
HFC-227ea the atmosphere
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2010/8/13
We report the first measurements of 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea), a substitute for ozone depleting compounds, in air samples originating from remote regions of the atmosphere and prese...
The roles of sulfuric acid in new particle formation and growth in the mega-city of Beijing
sulfuric acid new particle formation and growth the mega-city of Beijing
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2010/8/13
Simultaneous measurements of gaseous sulfuric acid and particle number size distributions were performed to investigate aerosol nucleation and growth during CAREBeijing-2008. The analysis of the measu...
Towards closing the gap between hygroscopic growth and CCN activation for secondary organic aerosols – Part 3: Influence of the chemical composition on the hygroscopic properties and volatile fractions of aerosols
hygroscopic growth CCN activation secondary organic aerosols the chemical composition the hygroscopic properties aerosols
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2010/8/12
The influence of varying levels of water mixing ratio, r, during the formation of secondary organic aerosol (SOA) from the ozonolysis of α-pinene on the SOA hygroscopicity and volatility was investiga...
The role of sulphates and organic vapours in growth of newly formed particles in a eucalypt forest
sulphates and organic vapours newly formed particles a eucalypt forest
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2010/8/12
The influence of biogenic particle formation on climate is a well recognised phenomenon. To understand the mechanisms underlying the biogenic particle formation, determining the chemical composition o...
Slower CCN growth kinetics of anthropogenic aerosol compared to biogenic aerosol observed at a rural site
CCN growth kinetics anthropogenic aerosol biogenic aerosol
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2010/1/18
Growth rates of water droplets were measured with a static diffusion cloud condensation chamber in May–June 2007 at a rural field site in Southern Ontario, Canada, 70 km north of Toronto. The observat...
New particle formation and growth at a remote, sub-tropical coastal location
New particle formation growth sub-tropical coastal location
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2009/10/13
A month-long intensive measurement campaign was conducted in March/April 2007 at Agnes Water, a remote coastal site just south of the Great Barrier Reef on the east coast of Australia. Particle and io...
Observational study of influence of aerosol hygroscopic growth on scattering coefficient over rural area near Beijing mega-city
aerosol hygroscopic growth scattering coefficient Beijing mega-city
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2009/10/13
We investigated aerosol hygroscopic growth property and its influence on scattering coefficient using M9003 nephelometers in coupling with humidity controlled inlet system at a rural site near Beijing...
Cloud condensation nuclei measurements in the marine boundary layer of the Eastern Mediterranean: CCN closure and droplet growth kinetics
marine boundary layer Eastern Mediterranean CCN closure droplet growth kinetics
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2009/9/27
Measurements of cloud condensation nuclei (CCN) concentrations (cm−3) between 0.2 and 1.0% supersaturation, aerosol size distribution and chemical composition were performed at a remote marine s...
Hygroscopic growth of urban aerosol particles in Beijing (China) during wintertime: a comparison of three experimental methods
Hygroscopic growth urban aerosol particles experimental method
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2009/9/23
The hygroscopic properties of atmospheric aerosols are highly relevant for the quantification of radiative effects in the atmosphere, but also of interest for the assessment of particle health effects...
Charged and total particle formation and growth rates during EUCAARI 2007 campaign in Hyytiälä
growth rates EUCAARI 2007 campaign Hyytiä lä
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2009/6/23
Despite the fact that frequent aerosol formation has been observed in various locations in the atmosphere, the overall magnitude of the new particle formation as a particle source is still unclear. In...