搜索结果: 1-13 共查到“大气化学 hygroscopicity”相关记录13条 . 查询时间(0.078 秒)
Relating hygroscopicity and composition of organic aerosol particulate matter
HTDMA SOA organic precursors a smog chamber
2011/2/25
A hygroscopicity tandem differential mobility analyzer (HTDMA) was used to measure the water uptake (hygroscopicity) of secondary organic aerosol (SOA) formed during the chemical and photochemical oxi...
13-month climatology of the aerosol hygroscopicity at the free tropospheric site Jungfraujoch (3580 m a.s.l.)
13-month climatology the aerosol hygroscopicity the free tropospheric site Jungfraujoch (3580 m a.s.l.)
2010/11/30
A hygroscopicity tandem differential mobility analyzer (HTDMA) was operated at the high-alpine site Jungfraujoch in order to characterize the hygroscopic diameter growth factors of the free tropospher...
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
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...
Global distribution of the effective aerosol hygroscopicity parameter for CCN activation
Global distribution the effective aerosol hygroscopicity parameter CCN activation
2010/8/13
In this study we use the ECHAM/MESSy Atmospheric Chemistry (EMAC) model to simulate global fields of the effective hygroscopicity parameter κ which approximately describes the influence of chemical co...
The hygroscopicity parameter (κ) of ambient organic aerosol at a field site subject to biogenic and anthropogenic influences: relationship to degree of aerosol oxidation
ambient organic aerosol a field site biogenic and anthropogenic influences aerosol oxidation
2010/8/13
Cloud condensation nuclei (CCN) concentrations were measured at Egbert, a rural site in Ontario, Canada during the spring of 2007. The CCN concentrations were compared to values predicted from the aer...
Hygroscopicity and chemical composition of Antarctic sub-micrometre aerosol particles and observations of new particle formation
Hygroscopicity and chemical composition Antarctic sub-micrometre aerosol particles new particle formation
2010/8/12
The Antarctic near-coastal sub-micrometre aerosol particle features in summer were characterised based on measured data on aerosol hygroscopicity, size distributions, volatility and chemical ion and o...
Cloud condensation nuclei in polluted air and biomass burning smoke near the mega-city Guangzhou, China – Part 1: Size-resolved measurements and implications for the modeling of aerosol particle hygroscopicity and CCN activity
Cloud condensation nuclei polluted air and biomass Size-resolved measurements and implications aerosol particle hygroscopicity CCN activity
2010/8/12
Atmospheric aerosol particles serving as Cloud Condensation Nuclei (CCN) are key elements of the hydrological cycle and climate. We measured and characterized CCN in polluted air and biomass burning s...
Aerosol hygroscopicity at high (99 to 100%) relative humidities
Aerosol hygroscopicity relative humidities
2010/2/21
The hygroscopicity of an aerosol strongly influences its effects on climate and, for smaller particles, atmospheric lifetime. While many aerosol hygroscopicity measurements have been made at lower rel...
Aerosol- and updraft-limited regimes of cloud droplet formation: influence of particle number, size and hygroscopicity on the activation of cloud condensation nuclei (CCN)
Aerosol- and updraft-limited regimes cloud droplet formation cloud condensation nuclei CCN
2009/9/27
We have investigated the formation of cloud droplets under pyro-convective conditions using a cloud parcel model with detailed spectral microphysics and with the κ-Köhler model approach for effic...
Effect of chemical mixing state on the hygroscopicity and cloud nucleation properties of calcium mineral dust particles
chemical mixing hygroscopicity cloud nucleation properties calcium mineral dust particles
2009/6/2
Atmospheric mineral dust particles can alter cloud properties and thus climate by acting as cloud condensation nuclei (CCN) that form cloud droplets. The CCN activation properties of various calcium m...
A curved multi-component aerosol hygroscopicity model framework: Part 2 – Including organic compounds
curved multi-component aerosol hygroscopicity model framework organic compounds
2009/2/9
This paper describes the inclusion of organic particulate material within the Aerosol Diameter Dependent Equilibrium Model (ADDEM) framework described in the companion paper applied to inorganic aeros...
A combined particle trap/HTDMA hygroscopicity study of mixed inorganic/organic aerosol particles
particle trap HTDMA hygroscopicity inorganic organic aerosol particles
2008/11/20
Atmospheric aerosols are often mixtures of inorganic and organic material. Organics can represent a large fraction of the total aerosol mass and are comprised of water-soluble and insoluble compounds....
Changes of fatty acid aerosol hygroscopicity induced by ozonolysis under humid conditions
fatty acid aerosol hygroscopicity ozonolysis
2008/11/17
Unsaturated fatty acids are important constituents of the organic fraction of atmospheric aerosols originating from biogenic or combustion sources. Oxidative processing of these may change their inte...