搜索结果: 1-15 共查到“大气化学 isoprene”相关记录22条 . 查询时间(0.04 秒)
Evidence for a significant proportion of Secondary Organic Aerosol from isoprene above a maritime tropical forest
a significant proportion Secondary Organic Aerosol isoprene a maritime tropical forest
2011/2/25
Isoprene is the most abundant non-methane biogenic volatile organic compound (BVOC), but the processes governing secondary organic aerosol (SOA) formation from isoprene oxidation are only beginning to...
Modeling secondary organic aerosol formation from isoprene oxidation under dry and humid conditions
secondary organic aerosol isoprene oxidation dry and humid conditions
2011/2/24
A new model for the formation of secondary organic aerosol (SOA) from isoprene was developed. This model uses surrogate molecular species (hydroxy-hydroperoxides, tetrols, methylglyceric acid, organic...
Improved global modelling of HOx recycling in isoprene oxidation: evaluation against the GABRIEL and INTEX-A aircraft campaign measurements
HOx recycling isoprene oxidation the GABRIEL and INTEX-A aircraft campaign measurements
2010/10/21
Stimulated by recent important developments regarding the oxidation chemistry of isoprene, this study evaluates and quantifies the impacts of different mechanism updates on the boundary layer concentr...
HOx observations over West Africa during AMMA: impact of isoprene and NOx
HOx observations West Africa AMMA isoprene NOx
2010/10/11
Aircraft OH and HO2 measurements made over West Africa during the AMMA field campaign in summer 2006 have been investigated using a box model constrained to observations of long-lived species and phys...
Impacts of mechanistic changes on HOx formation and recycling in the oxidation of isoprene
mechanistic changes HOx formation the oxidation of isoprene
2010/9/14
Recently reported model-measurement discrepancies for the concentrations of the HOx radical species (OH and HO2) in locations characterized by high emission rates of isoprene have indicated possible d...
Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo
climate-induced changes isoprene emissions the eruption of Mount Pinatubo
2010/8/16
In the 1990s the rates of increase of greenhouse gas concentrations, most notably of methane, were observed to change, for reasons that have yet to be fully determined. This period included the erupti...
Isoprene nitrates: preparation, separation, identification, yields, and atmospheric chemistry
Isoprene nitrates atmospheric chemistry
2010/8/16
Isoprene is an important atmospheric volatile organic compound involved in ozone production and NOx (NO+NO2) sequestration and transport. Isoprene reaction with OH in the presence of NO can form eithe...
A numerical evaluation of global oceanic emissions of α-pinene and isoprene
global oceanic emissions α-pinene isoprene
2010/2/21
A numerical evaluation of global oceanic emissions of α-pinene and isoprene based on both "bottom-up" and "top-down" methods is presented. We infer that the global "bottom-up" oceanic emissions of α-p...
Sensitivity of isoprene emissions estimated using MEGAN to the time resolution of input climate data
isoprene emissions MEGAN input climate data
2010/2/21
We evaluate the effect of varying the temporal resolution of the input climate data on isoprene emission estimates generated by the community emissions model MEGAN (Model of Emissions of Gases and Aer...
Oxidation of isoprene through reaction with NO3 radicals is a significant sink for isoprene that persists after dark. The main products of the reaction are multifunctional nitrates. These nitrates con...
A new physically-based quantification of marine isoprene and primary organic aerosol emissions
physically-based quantification marine isoprene primary organic aerosol emissions
2009/8/7
phytoplankton isoprene production and dynamic euphotic depth to simulate hourly marine isoprene emissions totaling 0.92 Tg C yr−1. Sensitivity studies using different schemes for the euphotic zo...
On inferring isoprene emission surface flux from atmospheric boundary layer concentration measurements
isoprene emission surface flux atmospheric boundary layer concentration measurements
2009/6/16
We examine the dependence of the inferred isoprene surface emission flux from atmospheric concentration on the diurnal variability of the convective boundary layer (CBL). A series of systematic numeri...
The CO2 inhibition of terrestrial isoprene emission significantly affects future ozone projections
CO2 inhibition terrestrial isoprene emission future ozone projections
2009/5/6
Simulations of future tropospheric composition often include substantial increases in biogenic isoprene emissions arising from the Arrhenius-like leaf emission response and warmer surface temperatures...
Mainz Isoprene Mechanism 2（MIM2）: an isoprene oxidation mechanism for regional and global atmospheric modelling
Mainz Isoprene Mechanism 2 MIM2 isoprene oxidation mechanism atmospheric modelling
2009/5/6
We present an oxidation mechanism of intermediate size for isoprene (2-methyl-1,3-butadiene) suitable for simulations in regional and global atmospheric chemistry models, which we call MIM2. It is a r...
SCIAMACHY formaldehyde observations: constraint for isoprene emission estimates over Europe?
SCIAMACHY formaldehyde isoprene emission Europe
2009/3/13
Formaldehyde (HCHO) is an important intermediate compound in the degradation of volatile organic compounds (VOCs) in the troposphere. Sources of HCHO are largely dominated by its secondary production ...