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An overview of current issues in the uptake of atmospheric trace gases by aerosols and clouds
current issues atmospheric trace gases aerosols and clouds
2010/11/30
A workshop was held in the framework of the ACCENT (Atmospheric Composition Change – a European Network) Joint Research Programme on "Aerosols" and the Programme on "Access to Laboratory Data". The ai...
Historical (1850–2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application
reactive gases and aerosols methodology application
2010/8/16
We present and discuss a new dataset of gridded emissions covering the historical period (1850–2000) in decadal increments at a horizontal resolution of 0.5° in latitude and longitude. The primary pur...
An investigation of the sub-grid variability of trace gases and aerosols for global climate modeling
the sub-grid variability trace gases and aerosols global climate modeling
2010/8/16
One fundamental property and limitation of grid based models is their inability to identify spatial details smaller than the grid cell size. While decades of work have gone into developing sub-grid tr...
Estimated total emissions of trace gases from the Canberra Wildfires of 2003: a new method using satellite measurements of aerosol optical depth & the MOZART chemical transport model
the Canberra Wildfires of 2003 aerosol optical depth the MOZART chemical transport model
2010/8/13
In this paper we describe a new method for estimating trace gas emissions from large vegetation fires using satellite measurements of aerosol optical depth (AOD) at 550 nm, combined with an atmospheri...
Technical Note: Ensuring consistent, global measurements of very short-lived halocarbon gases in the ocean and atmosphere
Ensuring consistent very short-lived halocarbon gases ocean atmosphere
2010/2/1
Very short-lived halocarbons are significant sources of reactive halogen in the marine boundary layer, and likely in the upper troposphere and lower stratosphere. Quantifying ambient concentrations in...
Eddy covariance flux measurements of pollutant gases in urban Mexico City
Eddy covariance flux measurements pollutant gases urban Mexico City
2009/10/9
Eddy covariance (EC) flux measurements of the atmosphere/surface exchange of gases over an urban area are a direct way to improve and evaluate emissions inventories, and, in turn, to better understand...
Influence of modelled soil biogenic NO emissions on related trace gases and the atmospheric oxidizing efficiency
modelled soil biogenic NO emissions trace gases atmospheric oxidizing efficiency
2009/5/6
The emission of nitric oxide (NO) by soils (SNOx) is an important source of oxides of nitrogen (NOx=NO+NO2) in the troposphere, with estimates ranging from 4 to 21 Tg of nitrogen per year. Previous st...
The use of disjunct eddy sampling methods for the determination of ecosystem level fluxes of trace gases
disjunct eddy sampling methods ecosystem level fluxes trace gases
2009/3/13
The concept of disjunct eddy sampling (DES) for use in measuring ecosystem-level micrometeorological fluxes is re-examined. The governing equations are discussed as well as other practical considerati...
Long term measurements of submicrometer urban aerosols: statistical analysis for correlations with meteorological conditions and trace gases
submicrometer urban aerosols meteorological conditions trace gases
2009/3/11
Long-term measurements (over 4 years) of particle number size distributions (submicrometer particles, 3-800 nm in diameter), trace gases (NO, NO2, and O3), and meteorological parameters (global radiat...
MAX-DOAS measurements of atmospheric trace gases in Ny-Ålesund - Radiative transfer studies and their application
MAX-DOAS atmospheric trace gases Ny-Å lesund - Radiative
2009/2/27
A new approach to derive tropospheric concentrations of some atmospheric trace gases from ground-based UV/vis measurements is described. The instrument, referred to as the MAX-DOAS, is based on the we...
Real-time measurements of ammonia, acidic trace gases and water-soluble inorganic aerosol species at a rural site in the Amazon Basin
ammonia acidic trace gases water-soluble inorganic aerosol species Amazon Basin
2009/2/19
A detailed description of the WAD/SJAC and the analytical
procedures is given elsewhere (Slanina et al., 2001; Wyers
et al., 1993). A simplified sketch of the sampling system
is shown in Fig. 2. Th...
Deployment of a ground-based CIMS apparatus for the detection of organic gases in the boreal forest during the QUEST campaign
ground-based CIMS apparatus organic gases boreal forest QUEST campaign
2009/2/6
Measurements of atmospheric volatile organic compounds were performed in the Finnish Boreal forest atmosphere during spring 2003, as part of the project QUEST (Quantification of Aerosol Nucleation in ...
Iterative maximum a posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH4 and CO2 retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT
(IMAP)-DOAS trace gases CH4 CO2 infrared spectra SCIAMACHY onboard ENVISAT
2009/1/23
In the past, differential optical absorption spectroscopy (DOAS) has mostly been employed for atmospheric trace gas retrieval in the UV/Vis spectral region. New spectrometers such as SCIAMACHY onboard...
Emissions of primary aerosol and precursor gases in the years 2000 and 1750 prescribed data-sets for AeroCom
primary aerosol precursor gases prescribed data-sets AeroCom
2009/1/15
Inventories for global aerosol and aerosol precursor emissions have been collected (based on published inventories and published simulations), assessed and prepared for the year 2000 (present-day cond...
Atmospheric carbon gases retrieved from SCIAMACHY by WFM-DOAS: version 0.5 CO and CH4 and impact of calibration improvements on CO2 retrieval
Atmospheric carbon gases WFM-DOAS calibration improvements CO2 retrieval
2009/1/12
The three carbon gases carbon monoxide (CO), carbon dioxide (CO2), and methane (CH4) are important atmospheric constituents affecting air quality and climate. The near-infrared nadir spectra measured ...