搜索结果: 1-15 共查到“大气化学 Size distribution”相关记录15条 . 查询时间(0.109 秒)
Chemical composition and aerosol size distribution of the middle mountain range in the Nepal Himalayas during the 2009 pre-monsoon season
Chemical composition aerosol size the middle mountain range the Nepal Himalayas the 2009 pre-monsoon season
2010/12/28
Aerosol particle number size distribution and chemical composition were measured at two low altitude sites, one urban and one relatively pristine valley, in Central Nepal during the 2009 pre-monsoon s...
The role of the particle size distribution in assessing aerosol composition effects on simulated droplet activation
the particle size distribution aerosol composition effects simulated droplet activation
2010/8/13
Variations in the chemical composition of atmospheric aerosols alter their hygroscopicity and can lead to changes in the cloud-active fraction of the aerosols, or cloud condensation nuclei (CCN) numbe...
Simulation of particle size distribution with a global aerosol model: contribution of nucleation to aerosol and CCN number concentrations
particle size distribution global aerosol model aerosol CCN number concentrations
2009/11/9
An advanced particle microphysics model with a number of computationally efficient schemes has been incorporated into a global chemistry transport model (GEOS-Chem) to simulate particle number size di...
Study of columnar aerosol size distribution in Hong Kong
columnar aerosol size distribution Hong Kong
2009/9/2
This paper presents studies on columnar aerosol optical properties in Hong Kong with focus on aerosol volume size distribution, which helps understand local aerosol properties, variation, hygroscopic ...
Long term particle size distribution measurements at Mount Waliguan, a high-altitude site in inland China
Mount Waliguan high-altitude site inland China
2009/8/7
Particle number size distributions in size range 12–570 nm were measured continuously at Mount Waliguan, a remote mountain-top station in inland China. The station is located at the altitude of 3816 m...
Spatio-temporal variability and principal components of the particle number size distribution in an urban atmosphere
Spatio-temporal variability particle number size distribution urban atmosphere
2009/5/15
A correct description of fine (diameter <1 μm) and ultrafine (<0.1 μm) aerosol particles in urban areas is of interest for particle exposure assessment but also basic atmospheric research. We examined...
Source Apportionment of Winter Submicron Prague Aerosols from Combined Particle Number Size Distribution and Gaseous Composition Data
Receptor modeling Particle size distribution Positive Matrix Factorization Prague
2016/3/25
Combined particle number size distributions and readily available gaseous concentration data were
used to identify winter particle sources in the urban atmosphere of Prague, the capital of Czech
Rep...
Classifying previously undefined days from eleven years of aerosol-particle-size distribution data from the SMEAR II station, Hyytiälä, Finland
aerosol-particle-size distribution SMEAR II station Hyytiä lä Finland
2009/3/12
Studies of secondary aerosol-particle formation depend on identifying days in which new particle formation occurs and, by comparing them to days with no signs of particle formation, identifying the co...
Measurements in a highly polluted Asian mega city: observations of aerosol number size distribution, modal parameters and nucleation events
highly polluted Asian mega city aerosol number size distribution modal parameters nucleation events
2009/1/23
Diurnal variation of number size distribution (particle size 3-800nm) and modal parameters (geometric standard deviation, geometric mean diameter and modal aerosol particle concentration) in a highly ...
Correlation between traffic density and particle size distribution in a street canyon and the dependence on wind direction
traffic density particle size distribution street canyon wind direction
2009/1/15
Combustion of fossil fuel in gasoline and diesel powered vehicles is a major source of aerosol particles in a city. In a street canyon, the number concentration of particles smaller than 300 nm in di...
Size distribution of EC and OC in the aerosol of Alpine valleys during summer and winter
Size distribution EC OC aerosol of Alpine valleys
2009/1/14
Collections of samples were conducted for the determination of the size distributions of EC and OC during the intensive sampling campaigns of the POVA program, in two Alpine valleys of the French Alps...
Size distribution and hygroscopic properties of aerosol particles from dry-season biomass burning in Amazonia
Size distribution hygroscopic properties aerosol particles dry-season biomass Amazonia
2008/12/31
Aerosol particle number size distributions and hygroscopic properties were measured at a pasture site in the southwestern Amazon region (Rondonia). The measurements were performed 11 September-14 Nove...
A study on the relationship between mass concentrations, chemistry and number size distribution of urban fine aerosols in Milan, Barcelona and London
mass concentrations chemistry urban fine aerosols Milan Barcelona London
2008/12/9
A physicochemical characterization, including aerosol number size distribution, chemical composition and mass concentrations, of the urban fine aerosol captured in MILAN, BARCELONA and LONDON is prese...
Statistical estimation of stratospheric particle size distribution by combining optical modelling and lidar scattering measurements
stratospheric particle optical modelling lidar scattering
2008/11/19
A method for estimating the stratospheric particle size distribution from multiwavelength lidar measurements is presented. It is based on matching measured and model-simulated backscatter coefficients...
Robust relations between CCN and the vertical evolution of cloud drop size distribution in deep convective clouds
CCN vertical evolution cloud drop deep convective clouds
2008/11/3
In-situ measurements in convective clouds (up to the freezing level) over the Amazon basin show that smoke from deforestation fires prevents clouds from precipitating until they acquire a vertical dev...