搜索结果: 76-90 共查到“大气科学 Size”相关记录112条 . 查询时间(0.369 秒)
Closure between measured and modeled cloud condensation nuclei (CCN) using size-resolved aerosol compositions in downtown Toronto
CCN size-resolved aerosol compositions Toronto
2009/1/12
Measurements of cloud condensation nuclei (CCN) were made in downtown Toronto during August and September, 2003. CCN measurements were performed at 0.58% supersaturation using a thermal-gradient diffu...
Winter and summer time size distributions and densities of traffic-related aerosol particles at a busy highway in Helsinki
size distributions density traffic-related aerosol particles Helsinki
2009/1/12
Number concentrations and size distributions of traffic related aerosol particles were measured at a roadside in Helsinki during two winter campaigns (10–26 February 2003, 28 January–12 February 2004)...
Aerosol and NOx emission factors and submicron particle number size distributions in two road tunnels with different traffic regimes
NOx emission factors submicron particle size distributions different traffic regimes
2009/1/9
Measurements of aerosol particle number size distributions (18–700 nm), mass concentrations (PM2.5 and PM10) and NOx were performed in the Plabutsch tunnel, Austria, and in the Kingsway tunnel, Unite...
Piecewise log-normal approximation of size distributions for aerosol modelling
Piecewise log-normal approximation size distributions aerosol modelling
2009/1/6
An efficient and accurate method for the representation of particle size distributions in atmospheric models is proposed. The method can be applied, but is not necessarily restricted, to aerosol mass ...
Atmospheric number size distributions of soot particles and estimation of emission factors
Atmospheric number size distributions soot particles emission factors
2009/1/5
Number fractions of externally mixed particles of four different sizes (30, 50, 80, and 150 nm in diameter) were measured using a Volatility Tandem DMA. The system was operated in a street canyon (Eis...
Size-segregated aerosol chemical composition at a boreal site in southern Finland, during the QUEST project
Size-segregated aerosol chemical composition boreal site southern Finland QUEST project
2009/1/5
Size-segregated aerosol samples were collected during the QUEST field campaign at Hyytiälä, a boreal forest site in Southern Finland, during spring 2003. Aerosol samples were selectively col...
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...
Size and composition measurements of background aerosol and new particle growth in a Finnish forest during QUEST 2 using an Aerodyne Aerosol Mass Spectrometer
background aerosol Finnish forest Aerodyne Aerosol Mass Spectrometer
2008/12/31
The study of the growth of nucleation-mode particles is important, as this prevents their loss through diffusion and allows them to reach sizes where they may become effective cloud condensation nucle...
Size-resolved source apportionment of ambient particles by positive matrix factorization at Gosan background site in East Asia
ambient particles positive matrix factorization Gosan background site East Asia
2008/12/30
Size- and time-resolved aerosol samples were collected using an eight-stage Davis rotating unit for monitoring (DRUM) sampler from 29 March to 29 May in 2002 at Gosan, Jeju Island, Korea, which is one...
Size distributions of non-volatile particle residuals（Dp<800 nm）at a rural site in Germany and relation to air mass origin
non-volatile particle rural site Germany air mass origin
2008/12/25
Atmospheric aerosol particle size distributions at a continental background site in Eastern Germany were examined for a one-year period. Particles were classified using a twin differential mobility pa...
Heterogeneous oxidation of saturated organic aerosols by hydroxyl radicals: uptake kinetics, condensed-phase products, and particle size change
Heterogeneous oxidation saturated organic aerosols hydroxyl radicals uptake kinetics
2008/12/17
The kinetics and reaction mechanism for the heterogeneous oxidation of saturated organic aerosols by gas-phase OH radicals were investigated under NOx-free conditions. The reaction of 150 nm diameter ...
Corrigendum to "Characteristics of aerosol and cloud particle size distributions in the tropical tropopause layer measured with optical particle counter and lidar'" published in Atmos. Chem. Phys., 7, 3507–3518, 2007
aerosol cloud particle size distributions tropical tropopause layer optical particle counter
2008/12/16
Corrigendum to "Characteristics of aerosol and cloud particle size distributions in the tropical tropopause layer measured with optical particle counter and lidar'" published in Atmos. Chem. Phys., 7,...
Evaluation and modeling of the size fractionated aerosol particle number concentration measurements nearby a major road in Helsinki – Part II: Aerosol measurements within the SAPPHIRE project
size fractionated aerosol particle Helsinki SAPPHIRE project
2008/12/16
This study presents an evaluation and modeling exercise of the size fractionated aerosol particle number concentrations measured nearby a major road in Helsinki during 23 August–19 September 2003 and ...
Evaluation and modelling of the size fractionated aerosol particle number concentration measurements nearby a major road in Helsinki – Part I: Modelling results within the LIPIKA project
size fractionated aerosol particle Helsinki LIPIKA project
2008/12/16
A field measurement campaign was conducted near a major road "Itäväylä" in an urban area in Helsinki in 17–20 February 2003. Aerosol measurements were conducted using a mobile laborato...
Size-segregated fluxes of mineral dust from a desert area of northern China by eddy covariance
fluxes mineral dust desert area northern China eddy covariance
2008/12/11
Mineral dust emission accounts for a substantial portion of particles present in the troposphere. It is emitted mostly from desert areas, mainly through intense storm episodes. The aim of this work w...