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Revision of the convective transport module CVTRANS 2.4 in the EMAC atmospheric chemistry–climate model
EMAC atmospheric chemistry–climate model convective transport
2015/8/11
The convective transport module, CVTRANS,
of the ECHAM/MESSy Atmospheric Chemistry (EMAC)
model has been revised to better represent the physical flows
and incorporate recent findings o...
Modelling multi-phase halogen chemistry in the coastal marine boundary layer: investigation of the relative importance of local chemistry vs. long-range transport
multi-phase halogen chemistry the coastal marine boundary layer local chemistry long-range transport
2011/2/25
Measurements of significant concentrations of IO, I2 and BrO in a semi-polluted coast environment at Roscoff, in North-West France, have been made as part of the Reactive Halogens in the Marine Bounda...
Attribution of stratospheric ozone trends to chemistry and transport: a modelling study
stratospheric ozone chemistry transport a modelling study
2010/12/28
The decrease of the concentration of ozone depleting substances (ODSs) in the stratosphere over the past decade raises the question to what extent observed changes in stratospheric ozone over this per...
Measurements and modelling of molecular iodine emissions, transport and photodestruction in the coastal region around Roscoff
molecular iodine photodestruction the coastal region around Roscoff
2010/12/28
Iodine emissions from the dominant six macroalgal species in the coastal regions around Roscoff, France, have been modelled to support the Reactive Halogens in the Marine Boundary Layer Experiment (RH...
Quantifying transport into the Arctic lowermost stratosphere
the Arctic lowermost stratosphere the Arctic vortex the Arctic winter 2003
2010/12/28
In the Arctic winter 2003, in-situ measurements of the long-lived trace gases N2O, CFC-11 (CCl3F), H-1211 (CBrClF2), CH4, O3 and H2O have been performed on board the high-altitude aircraft M55 Geophys...
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling
aerosol transport the Canadian High Arctic aerosol mass spectrometry Lagrangian modelling
2010/11/30
We report the analysis of measurements made using an aerosol mass spectrometer (AMS; Aerodyne Research Inc.) that was installed in the Polar Environment Atmospheric Research Laboratory (PEARL) in summ...
The importance of transport model uncertainties for the estimation of CO2 sources and sinks using satellite measurements
transport model uncertainties CO2 sources and sinks satellite measurements
2010/11/3
This study presents a synthetic model intercomparison to investigate the importance of transport model errors for estimating the sources and sinks of CO2 using satellite measurements. The experiments ...
Pathways of PFOA to the Arctic: variabilities and contributions of oceanic currents and atmospheric transport and chemistry sources
PFOA the Arctic oceanic currents atmospheric transport chemistry sources
2010/10/21
Perfluorooctanoic acid (PFOA) and other perfluorinated compounds are industrial chemicals in use for decades which resist degradation in the environment and seem to accumulate in polar regions. Transp...
An overview of the MILAGRO 2006 Campaign: Mexico City emissions and their transport and transformation
the MILAGRO 2006 Campaign Mexico City emissions transport and transformation
2010/9/21
This paper describes the measurements performed during MILAGRO and the results obtained on MCMA's atmospheric meteorology and dynamics, emissions of gases and fine particles, sources and concentration...
Trans-Pacific transport of reactive nitrogen and ozone to Canada during spring
Trans-Pacific reactive nitrogen ozone Canada spring
2010/9/21
We interpret observations from the Intercontinental Chemical Transport Experiment, Phase B (INTEX-B) in spring 2006 using a global chemical transport model (GEOS-Chem) to evaluate sensitivities of the...
Radiative heating rates profiles associated with a springtime case of Bodélé and Sudan dust transport over West Africa
Bodélé and Sudan dust Radiative heating rates West Africa
2010/9/14
The radiative heating rate due to mineral dust over West Africa is investigated using the radiative code STREAMER, as well as remote sensing and in situ observations gathered during the African Monsoo...
Atmospheric transport of persistent semi-volatile organic chemicals to the Arctic and cold condensation in the mid-troposphere – Part 2: 3-D modeling of episodic atmospheric transport
Atmospheric transport persistent semi-volatile organic chemicals the Arctic and cold condensation the mid-troposphere episodic atmospheric transport
2010/8/16
Two 3-dimensional global atmospheric transport models for persistent organic pollutants (POPs) have been employed to investigate the association between the large-scale atmospheric motions and polewar...
Atmospheric transport of persistent semi-volatile organic chemicals to the Arctic and cold condensation in the mid-troposphere – Part 1: 2-D modeling in mean atmosphere
Atmospheric transport persistent semi-volatile organic chemicals the Arctic and cold condensation the mid-troposphere mean atmosphere
2010/8/16
In the first part of this study for revisiting the cold condensation effect on global distribution of semi-volatile organic chemicals (SVOCs), the atmospheric transport of SVOCs to the Arctic in the m...
Vertical transport rates and concentrations of OH and Cl radicals in the Tropical Tropopause Layer from observations of CO2 and halocarbons: implications for distributions of long- and short-lived chemical species
Vertical transport rates OH and Cl radicals the Tropical Tropopause Layer long- and short-lived chemical species
2010/8/16
Rates for large-scale vertical transport of air in the Tropical Tropopause Layer (TTL) were determined using high-resolution, in situ observations of CO2 concentrations in the tropical upper troposphe...
A linear CO chemistry parameterization in a chemistry-transport model: evaluation and application to data assimilation
A linear CO chemistry parameterization a chemistry-transport model data assimilation
2010/8/16
This paper presents an evaluation of a new linear parameterization valid for the troposphere and the stratosphere, based on a first order approximation of the carbon monoxide (CO) continuity equation....