搜索结果: 1-15 共查到“大气化学 Source”相关记录27条 . 查询时间(0.127 秒)
A sea-state based source function for size- and composition-resolved marine aerosol production
source function size- and composition-resolved marine aerosol production
2011/2/25
A parameterization for the size- and composition-resolved production fluxes of nascent marine aerosol was developed from prior experimental observations and extrapolated to ambient conditions based on...
Oxidative capacity of the Mexico City atmosphere – Part 1: A radical source perspective
Oxidative capacity the Mexico City atmosphere A radical source perspective
2010/8/16
A detailed analysis of OH, HO2 and RO2 radical sources is presented for the near field photochemical regime inside the Mexico City Metropolitan Area (MCMA). During spring of 2003 (MCMA-2003 field camp...
Application of positive matrix factorization to on-road measurements for source apportionment of diesel- and gasoline-powered vehicle emissions in Mexico City
positive matrix factorization on-road measurements source apportionment diesel- and gasoline-powered vehicle emissions Mexico City
2010/8/12
The goal of this research is to quantify diesel- and gasoline-powered motor vehicle emissions within the Mexico City Metropolitan Area (MCMA) using on-road measurements captured by a mobile laboratory...
Study on the Seasonal Variation and Source Apportionment of PM10 in Harbin, China
Atmospheric particles Seasonal variation Enrichment factor Source apportionmen
2016/3/29
The atmospheric respirable particulate matter (PM10) from four typical districts of Harbin was collected in four seasons.
By analyzing the samples, we got the spatial distribution and seasonal variat...
The global SF6 source inferred from long-term high precision atmospheric measurements and its comparison with emission inventories
the global SF6 source long-term high precision atmospheric measurements emission inventories
2010/8/12
Emissions of sulphur hexafluoride (SF6), one of the strongest greenhouse gases on a per molecule basis, are targeted to be collectively reduced under the Kyoto Protocol. Because of its long atmospheri...
Source attribution and interannual variability of Arctic pollution in spring constrained by aircraft (ARCTAS, ARCPAC) and satellite (AIRS) observations of carbon monoxide
Arctic pollution spring constrained ARCTAS carbon monoxide
2010/2/21
We use aircraft observations of carbon monoxide (CO) from the NASA ARCTAS and NOAA ARCPAC campaigns in April 2008 together with multiyear (2003–2008) CO satellite data from the AIRS instrument and a g...
Wildfire smoke in the Siberian Arctic in summer: source characterization and plume evolution from airborne measurements
Wildfire smoke Siberian Arctic summer source characterization airborne measurements
2009/12/31
We present airborne measurements of carbon dioxide (CO2), carbon monoxide (CO), ozone (O3), equivalent black carbon (EBC) and ultra fine particles over North-Eastern Siberia in July 2008 performed dur...
Grid resolution dependence in the reconstruction of an atmospheric tracer source
Grid resolution dependence reconstruction atmospheric tracer source
2009/11/9
Methods for reconstructing sources of inert atmospheric tracers from ground measurements are currently studied, tested, and even implemented (in accident-type radionuclide release backtracking, for re...
Photoinduced oxidation of sea salt halides by aromatic ketones: a source of halogenated radicals
Photoinduced oxidation sea salt halides aromatic ketones halogenated radicals
2009/7/15
The interactions between triplet state benzophenone and halide anion species (Cl, Br and I have been studied by laser flash photolysis (at 355 nm) in aqueous solutions at room temperature. The decay o...
Source apportionment of elevated wintertime PAHs by compound-specific radiocarbon analysis
elevated wintertime PAHs compound-specific radiocarbon
2009/6/2
Natural abundance radiocarbon analysis facilitates distinct source apportionment between contemporary biomass/biofuel (14C "alive") versus fossil fuel (14C "dead") combustion. Here, the first compound...
Source Apportionment of Winter Submicron Prague Aerosols from Combined Particle Number Size Distribution and Gaseous Composition Data
Receptor modeling Particle size distribution Positive Matrix Factorization Prague
2016/3/25
Combined particle number size distributions and readily available gaseous concentration data were
used to identify winter particle sources in the urban atmosphere of Prague, the capital of Czech
Rep...
Evaluation of the global oceanic isoprene source and its impacts on marine organic carbon aerosol
global oceanic isoprene source marine organic carbon aerosol
2009/3/13
We have combined the first satellite maps of the global distribution of phytoplankton functional type and new measurements of phytoplankton-specific isoprene productivities, with available remote mari...
In situ measurements of speciated atmospheric mercury and the identification of source regions in the Mexico City Metropolitan Area
speciated atmospheric mercury source regions Mexico City Metropolitan Area
2009/3/12
In order to expand the currently limited understanding of atmospheric mercury source-receptor relationships in the Mexico City Metropolitan Area, real time measurements of atmospheric mercury were mad...
Modeled and observed ozone sensitivity to mobile-source emissions in Mexico City
Modeled and observed ozone sensitivity mobile-source emissions Mexico City
2009/3/12
The emission characteristics of mobile sources in the Mexico City Metropolitan Area (MCMA) have changed significantly over the past few decades in response to emission control policies, advancements i...
The isotopic fingerprint of the pre-industrial and the anthropogenic N2O source
isotopic fingerprint pre-industrial anthropogenic N2O
2009/3/10
We have performed high-precision measurements of the 18O and position dependent 15N isotopic composition of N2O from Antarctic firn air samples. By comparing these data to simulations carried out with...