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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
2010/11/10
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...
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
2010/7/29
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
2010/6/30
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...
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...
Redistribution of trace gases by convective clouds - mixed-phase processes
trace gases convective clouds mixed-phase processes
2009/3/12
The efficiency of gas transport to the free and upper troposphere in convective clouds is investigated in an axisymmetric dynamic cloud model with detailed microphysics. In particular, we examine the ...
Transport and build-up of tropospheric trace gases during the MINOS campaign：comparision of GOME，in situ aircraft measurements and MATCH-MPIC-data
tropospheric trace gases MINOS campaign GOME MATCH-MPIC
2009/3/11
The MINOS (Mediterranean INtensive Oxidant Study) campaign was an international, multi-platform field campaign to measure long-range transport of air-pollution and aerosols from South East Asia and Eu...
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...
Real-time measurements of ammonia, acidic trace gases and water-soluble inorganic aerosol species at a rural site in the Amazon Basin
acidic trace gases water-soluble inorganic aerosol species Amazon Basin
2009/2/27
We measured the mixing ratios of ammonia (NH3), nitric acid (HNO3), nitrous acid (HONO), hydrochloric acid (HCl), sulfur dioxide (SO2 and the corresponding water-soluble inorganic aerosol species, amm...
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...
A broadband cavity ringdown spectrometer for in-situ measurements of atmospheric trace gases
cavity ringdown spectrometer in-situ measurements atmospheric trace gases
2009/2/17
This paper describes a broadband cavity ringdown spectrometer and its deployment during the 2002 North Atlantic Marine Boundary Layer Experiment (NAMBLEX) to measure ambient concentrations of NO3, N2O...
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...
Highly resolved observations of trace gases in the lowermost stratosphere and upper troposphere from the Spurt project: an overview
trace gases lowermost stratosphere upper troposphere Spurt project
2008/12/31
During SPURT (Spurenstofftransport in der Tropopausenregion, trace gas transport in the tropopause region) we performed measurements of a wide range of trace gases with different lifetimes and sink/so...
Chemistry, transport and dry deposition of trace gases in the boundary layer over the tropical Atlantic Ocean and the Guyanas during the GABRIEL field campaign
dry deposition trace gases boundary layer tropical Atlantic Ocean Guyanas GABRIEL field campaign
2008/12/15
We present a comparison of different Lagrangian and chemical box model calculations with measurement data obtained during the GABRIEL campaign over the tropical Atlantic Ocean and the Amazon rainfores...