搜索结果: 1-10 共查到“大气科学 Homogeneous nucleation”相关记录10条 . 查询时间(0.062 秒)
Homogeneous nucleation of sulfuric acid and water mixture: experimental setup and first results
Homogeneous nucleation sulfuric acid and water mixture
2010/8/12
In this study we introduce a new flow tube suitable for binary and ternary homogeneous nucleation studies. The production of sulfuric acid and water vapor mixture, the experimental setup and the metho...
Particle formation in the Arctic free troposphere during the ASTAR 2004 campaign: a case study on the influence of vertical motion on the binary homogeneous nucleation of H2SO4/H2O
Arctic free troposphere ASTAR 2004 campaign binary homogeneous nucleation of H2SO4/H2O
2010/2/21
During the ASTAR (Arctic Study of Tropospheric Aerosol and Radiation) campaign nucleation mode particles (4 to 13 nm) were quite frequently observed at altitudes below 4000 m. However, in the upper fr...
Thermodynamics of homogeneous nucleation of ice particles in the polar summer mesosphere
Thermodynamics of homogeneous nucleation ice particles polar summer mesosphere
2009/3/13
We present the hypothesis of homogeneous nucleation of ice nano-particles in the polar summer mesosphere. The nucleation of condensed phase is traced back to the first step on the formation pathway, w...
Homogeneous nucleation of NAD and NAT in liquid stratospheric aerosols: insufficient to explain denitrification
Homogeneous nucleation NAD NAT liquid stratospheric aerosols
2009/3/12
The nucleation of NAD and NAT from HNO3/H2O and HNO3/H2SO4/H2O solution droplets is investigated both theoretically and experimentally with respect to the formation of polar stratospheric clouds (PSCs...
Comment on evidence for surface-initiated homogeneous nucleation
surface-initiated homogeneous nucleation
2009/3/11
We investigate theoretical, laboratory, and atmospheric evidence for a recently proposed hypothesis: homogeneous ice nucleation initiates at the surface, not in the volume, of supercooled water drops....
Commentary on“Homogeneous nucleation of NAD and NAT in liquid stratospheric aerosols: insufficient to explain denitrification”by Knopf et al.
Homogeneous nucleation NAD NAT liquid stratospheric aerosols
2009/3/11
In a recent published paper Knopf et a1. (2002) have suggested that the homogeneous freezing behavior of stratospheric aerosols, under polar winter conditions, can be simulated experimentally in large...
Laboratory studies of the homogeneous nucleation of iodine oxides
Laboratory homogeneous nucleation iodine oxides
2009/2/20
Laboratory experimental results of iodine oxide nucleation are presented. Nucleation was induced following UV photolysis of CF3I or CH2I2 in the presence of excess ozone. Measurements were performed i...
Homogeneous nucleation rates of nitric acid dihydrate (NAD) at simulated stratospheric conditions – Part II: Modelling
Homogeneous nucleation rates nitric acid dihydrate NAD
2009/1/13
Activation energies ΔGact for the nucleation of nitric acid dihydrate (NAD) in supercooled binary HNO3/H2O solution droplets were calculated from volume-based nucleation rate measurements using the AI...
Homogeneous nucleation rates of nitric acid dihydrate (NAD) at simulated stratospheric conditions – Part I: Experimental results
Homogeneous nucleation rates nitric acid dihydrate NAD
2009/1/13
The low temperature aerosol chamber AIDA was used to study the nucleation of nitric acid dihydrate (NAD) in super-cooled nitric acid aerosols under simulated stratospheric conditions in the temperatur...
Laboratory studies of H2SO4/H2O binary homogeneous nucleation from the SO2+OH reaction: evaluation of the experimental setup and preliminary results
H2SO4/H2O binary homogeneous nucleation SO2+OH reaction
2008/11/17
Binary homogeneous nucleation (BHN) of sulphuric acid and water (H2SO4/H2O) is one of the most important atmospheric nucleation processes, but laboratory observations of this nucleation process are ve...