搜索结果: 1-15 共查到“大气化学 Mechanisms”相关记录15条 . 查询时间(0.14 秒)
Formation of secondary aerosols over Europe: comparison of two gas-phase chemical mechanisms
secondary aerosols Europe two gas-phase chemical mechanisms
2011/2/24
The impact of two recent gas-phase chemical kinetic mechanisms (CB05 and RACM2) on the formation of secondary inorganic and organic aerosols is compared for simulations of PM2.5 over Europe between 15...
Eta-CMAQ air quality forecasts for O3 and related species using three different photochemical mechanisms (CB4, CB05, SAPRC-99): comparisons with measurements during the 2004 ICARTT study
Eta-CMAQ air quality forecasts three different photochemical mechanisms the 2004 ICARTT study
2010/8/12
A critical module of air quality models is the photochemical mechanism. In this study, the impact of the three photochemical mechanisms (CB4, CB05, SAPRC-99) on the Eta-Community Multiscale Air Qualit...
Kinetics and mechanisms of heterogeneous reaction of NO2 on CaCO3 surfaces under dry and wet conditions
heterogeneous reaction CaCO3 surfaces dry wet
2010/2/1
With increasing NO2 concentration in the troposphere, the importance of NO2 reaction with mineral dust in the atmosphere needs to be evaluated. Until now, little is known about the reaction of NO2 wit...
Kinetic modeling of nucleation experiments involving SO2 and OH: new insights into the underlying nucleation mechanisms
Kinetic modeling nucleation experiments SO2 OH underlying nucleation mechanisms
2009/11/9
Nucleation is an important source of atmospheric aerosols which have significant climatic and health implications. Despite intensive theoretical and field studies over the past decades, the dominant n...
Modelling of cirrus clouds – Part 2: Competition of different nucleation mechanisms
Modelling of cirrus clouds different nucleation mechanisms
2009/5/7
We study the competition of two different freezing mechanisms (homogeneous and heterogeneous freezing) in the same environment for cold cirrus clouds. To this goal we use the recently developed and va...
Ultrathin Tropical Tropopause Clouds（UTTCs）：II. Stabilization mechanisms
Ultrathin Tropical Tropopause Clouds UTTCs Stabilization mechanisms
2009/3/11
Mechanisms by which subvisible cirrus clouds (SVCs) might contribute to dehydration close to the tropical tropopause are not well understood. Recently Ultrathin Tropical Tropopause Clouds (UTTCs) with...
Modelling of the photooxidation of toluene: conceptual ideas for validating detailed mechanisms
photooxidation of toluene conceptual ideas validating detailed mechanisms
2009/3/10
Toluene photooxidation is chosen as an example to examine how simulations of smog-chamber experiments can be used to unravel shortcomings in detailed mechanisms and to provide information on complex...
Systematic reduction of complex tropospheric chemical mechanisms, Part II: Lumping using a time-scale based approach
complex tropospheric chemical mechanisms Lumping time-scale
2009/3/6
This paper presents a formal method of species lumping that can be applied automatically to intermediate compounds within detailed and complex tropospheric chemical reaction schemes. The method is bas...
Systematic reduction of complex tropospheric chemical mechanisms, Part I: sensitivity and time-scale analyses
complex tropospheric chemical mechanisms sensitivity time-scale
2009/3/6
Explicit mechanisms describing the complex degradation pathways of atmospheric volatile organic compounds (VOCs) are important, since they allow the study of the contribution of individual VOCS to sec...
Evaluation of detailed aromatic mechanisms（MCMv3 and MCMv3.1）against environmental chamber data
aromatic mechanisms MCMv3 MCMv3.1 environmental chamber data
2009/2/7
A high quality dataset on the photo-oxidation of benzene, toluene, p-xylene and 1,3,5-trimethylbenzene has been obtained from experiments in the European Photoreactor (EUPHORE), a large outdoor enviro...
Sub-continental transport mechanisms and pathways during two ozone episodes in northern Spain
Sub-continental transport mechanisms pathways ozone episodes northern Spain
2009/1/7
Two ozone episodes (occurring in June 2001 and June 2003) in the air quality monitoring network of the Basque Country (BC) are analyzed. The population information threshold was exceeded in many stati...
The characteristics of planetary wave energy propagation are being compared based on NCEP reanalysis data from 1958 to 2002 between boreal winters after strong volcanic eruptions, non-volcanic winters...
Chemical characterization of the inorganic fraction of aerosols and mechanisms of the neutralization of atmospheric acidity in Athens, Greece
inorganic fraction aerosols atmospheric acidity Athens Greece
2008/12/11
The PM10 mass concentration levels and inorganic chemical composition were determined on 12-h resolution sampling during August 2003 and March 2004, in the centre of Athens, Greece. The August 2003 ca...
On the volatility and production mechanisms of newly formed nitrate and water soluble organic aerosol in Mexico City
nitrate water soluble organic aerosol Mexico City
2008/11/13
Measurements of atmospheric gases and fine particle chemistry were made in the Mexico City Metropolitan Area (MCMA) at a site ~30 km down wind of the city center. Ammonium nitrate (NH4NO3) dominated t...
Atmospheric chemistry of trans-CF3CH=CHF: products and mechanisms of hydroxyl radical and chlorine atom initiated oxidation
trans-CF3CH=CHF hydroxyl radical chlorine atom oxidation
2008/11/11
Smog chamber/FTIR techniques were used to study the products and mechanisms of OH radical and Cl atom initiated oxidation of trans-CF3CH=CHF in 700 Torr of N2/O2 diluent at 295±1 K. Hydroxyl radical i...