搜索结果: 1-15 共查到“大气科学 gas phase”相关记录29条 . 查询时间(0.156 秒)
Characterizing the Gas-phase Organochlorine Pesticides in the Atmosphere over the Pearl River Delta Region
Organochlorine pesticides Gas phase Pearl River Delta Region
2016/3/28
The organochlorine pesticides (OCPs) in the atmosphere were measured at four sampling sites located in Guangzhou
(GZ), Zhaoqing (ZQ) and Hong Kong (HK) over the Pearl River Delta Region (PRDR) in one...
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...
Occurrence of gas phase ammonia in the area of Beijing (China)
gas phase ammonia the area of Beijing (China)
2010/10/11
The atmospheric concentrations of gaseous ammonia have been measured during two field campaigns in the winter and in the summer of 2007 at Beijing (China). These measurements were carried out by means...
Spectroscopic studies of molecular iodine emitted into the gas phase by seaweed
Spectroscopic studies molecular iodine the gas phase
2010/8/16
Time profiles of molecular iodine emissions from seven species of seaweed have been measured at high time resolution (7.5 s) by direct spectroscopic quantification of the gas phase I2 using broadband ...
Modelling the reversible uptake of chemical species in the gas phase by ice particles formed in a convective cloud
chemical species the gas phase ice particles a convective cloud
2010/8/13
The present paper is a preliminary study preparing the introduction of reversible trace gas uptake by ice particles into a 3-D cloud resolving model. For this a 3-D simulation of a tropical deep conve...
Measurements of OH and HO2 yields from the gas phase ozonolysis of isoprene
OH and HO2 yields gas phase ozonolysis isoprene
2010/2/21
The reactions of ozone with alkenes are an important source of hydroxyl (OH) radicals; however, quantification of their importance is hindered by uncertainties in the absolute OH yield. Hydroxyl radic...
Composition and properties of atmospheric particles in the eastern Atlantic and impacts on gas phase uptake rates
atmospheric particles eastern Atlantic gas phase uptake rates
2009/12/31
Marine aerosol composition continues to represent a large source of uncertainty in the study of climate and atmospheric chemistry. In addition to their physical size and chemical composition, hygrosco...
Gas phase acetic acid and its qualitative effects on snow crystal morphology and the quasi-liquid layer
Gas phase acetic acid qualitative effects snow crystal morphology quasi-liquid layer
2009/11/9
A chamber was constructed within which snow crystals were grown on a string at various temperatures, relative humidities, and acetic acid gas phase mole fractions. The temperature, relative humidity, ...
Comparison of tropospheric gas-phase chemistry schemes for use within global models
tropospheric gas-phase chemistry schemes global models
2009/3/13
Methane and ozone are two important climate gases with significant tropospheric chemistry. Within chemistry-climate and transport models this chemistry is simplified for computational expediency. We c...
Organic nitrate and secondary organic aerosol yield from NO3 oxidation of β-pinene evaluated using a gas-phase kinetics/aerosol partitioning model
Organic nitrate secondary organic aerosol gas-phase kinetics/aerosol partitioning model
2009/3/13
The yields of organic nitrates and of secondary organic aerosol (SOA) particle formation were measured for the reaction NO3+β-pinene under dry and humid conditions in the atmosphere simulation chamber...
Gas phase precursors to anthropogenic secondary organic aerosol: detailed observations of 1,3,5-trimethylbenzene photooxidation
Gas phase precursors anthropogenic secondary organic aerosol 1,3,5-trimethylbenzene photooxidation
2009/3/12
A series of photooxidation experiments were conducted in an atmospheric simulation chamber in order to investigate the oxidation mechanism and secondary organic aerosol (SOA) formation potential of th...
Kinetics of the gas-phase reactions of OH radicals with alkanes and cycloalkanes
Kinetics gas-phase reactions OH radicals alkanes cycloalkanes
2009/3/11
The available database concerning rate constants for gas-phase reactions of the hydroxyl (OH) radical with alkanes through early 2003 is presented over the entire temperature range for which measureme...
Atmospheric measurements of gas-phase HNO3 and SO2 using chemical ionization mass spectrometry during the MINATROC field campaign 2000 on Monte Cimone
Atmospheric measurements gas-phase HNO3 chemical ionization mass spectrometry MINATROC field Monte Cimone
2009/3/10
The EU-project MINATROC (MINeral dust And TROpospheric Chemistry) aims at enabling an estimation of the influence of mineral dust, a major, but to date largely ignored component of tropospheric aeroso...
Internal mixing of the organic aerosol by gas phase diffusion of semivolatile organic compounds
organic aerosol gas phase diffusion semivolatile organic compounds
2009/3/10
This paper shows that most of the so far identified constituents of the tropospheric organic particulate matter belong to a semivolatile fraction for which gas phase diffusion in the lower troposphere...
Evaluated kinetic and photochemical data for atmospheric chemistry: Volume I - gas phase reactions of Ox, HOx, NOx and SOx species
Evaluated kinetic atmospheric chemistry gas phase reactions
2009/3/5
This article, the first in the series, presents kinetic and photochemical data evaluated by the IUPAC Subcommittee on GasKinetic Data Evaluation for Atmospheric Chemistry. It covers the gas phase and ...
