搜索结果: 1-15 共查到“大气物理学 gas phase”相关记录15条 . 查询时间(0.109 秒)
Characterizing the Gas-phase Organochlorine Pesticides in the Atmosphere over the Pearl River Delta Region
Organochlorine pesticides Gas phase Pearl River Delta Region
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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...
Occurrence of gas phase ammonia in the area of Beijing (China)
gas phase ammonia the area of Beijing (China)
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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...
Measurements of OH and HO2 yields from the gas phase ozonolysis of isoprene
OH and HO2 yields gas phase ozonolysis isoprene
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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
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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
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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, ...
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
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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
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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
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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...
Kinetic isotope effects in the gas phase reactions of OH and Cl with CH3Cl, CD3Cl, and 13CH3Cl
Kinetic isotope effects gas phase reactions 13CH3Cl
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2009/2/17
The kinetic isotope effects in the reactions of CH3Cl, 13CH3Cl and CD3Cl with OH radicals and Cl atoms were studied in relative rate experiments at 298±2 K and 1013±10 mbar. The reactions were carried...
CHEM2D-OPP: A new linearized gas-phase ozone photochemistry parameterization for high-altitude NWP and climate models
CHEM2D-OPP linearized gas-phase ozone photochemistry parameterization high-altitude NWP
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2009/1/16
The new CHEM2D-Ozone Photochemistry Parameterization (CHEM2D-OPP) for high-altitude numerical weather prediction (NWP) systems and climate models specifies the net ozone photochemical tendency and its...
Separation of emitted and photochemical formaldehyde in Mexico City using a statistical analysis and a new pair of gas-phase tracers
emitted and photochemical formaldehyde Mexico City gas-phase tracers
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2009/1/15
Photochemical pollution control strategies require an understanding of photochemical oxidation precursors, making it important to distinguish between primary and secondary sources of HCHO. Estimates f...
Evaluated kinetic and photochemical data for atmospheric chemistry: Volume III – gas phase reactions of inorganic halogens
kinetic photochemical data atmospheric chemistry inorganic halogens
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2008/12/2
This article, the third in the series, presents kinetic and photochemical data evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry. It covers the gas phase and...
Evaluated kinetic and photochemical data for atmospheric chemistry: Volume IV – gas phase reactions of organic halogen species
kinetic photochemical data atmospheric chemistry gas phase reactions organic halogen species
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2008/11/14
This article, the fourth in the series, presents kinetic and photochemical data sheets evaluated by the IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry. It covers the gas p...
A semi-analytical method for calculating rates of new sulfate aerosol formation from the gas phase
semi-analytical method sulfate aerosol gas phase
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2008/11/12
The formation of new aerosol from the gas phase is commonly represented in atmospheric modeling with parameterizations of the steady state nucleation rate. Present parameterizations are based on class...
GEM-AQ, an on-line global multiscale chemical weather modelling system: model description and evaluation of gas phase chemistry processes
GEM-AQ gas phase chemistry processes
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2008/11/11
Tropospheric chemistry and air quality processes were implemented on-line in the Global Environmental Multiscale weather prediction model. The integrated model, GEM-AQ, was developed as a platform to ...