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An evaluation of the performance of chemistry transport models by comparison with research aircraft observations. Part 1: Concepts and overall model performance
chemistry transport models research aircraft observations overall model performance
2009/3/11
A rigorous evaluation of five global Chemistry-Transport and two Chemistry-Climate Models operated by several different groups in Europe, was performed. Comparisons were made of the models with trace ...
On the use of mass-conserving wind fields in chemistry-transport models
mass-conserving wind fields chemistry-transport models
2009/3/10
A new method has been developed that provides mass-conserving wind fields for global chemistry-transport models. In previous global Eulerian modeling studies a mass-imbalance was found between the mod...
A quantitative analysis of grid-related systematic errors in oxidising capacity and ozone production rates in chemistry transport models
grid-related systematic errors oxidising capacity ozone production rates chemistry transport models
2009/3/5
Limited resolution in chemistry transport models (CTMs) is necessarily associated with systematic errors in the calculated chemistry, due to the artificial mixing of species on the scale of the model ...
Atmospheric methane and carbon dioxide from SCIAMACHY satellite data: initial comparison with chemistry and transport models
Atmospheric methane carbon dioxide SCIAMACHY satellite data chemistry and transport models
2009/2/8
The remote sensing of the atmospheric greenhouse gases methane (CH4) and carbon dioxide (CO2) in the troposphere from instrumentation aboard satellites is a new area of research. In this manuscript, r...
An evaluation of the performance of chemistry transport models - Part 2: Detailed comparison with two selected campaigns
chemistry transport models Chemistry-Climate Models air masses
2009/1/23
This is the second part of a rigorous model evaluation study involving five global Chemistry-Transport and two Chemistry-Climate Models operated by different groups in Europe. Simulated trace gas fiel...
A modified band approach for the accurate calculation of online photolysis rates in stratospheric-tropospheric Chemical Transport Models
modified band approach online photolysis rates stratospheric-tropospheric Chemical Transport Models
2009/1/15
Here we present an efficient and accurate method for the online calculation of photolysis rates relevant to both the stratosphere and troposphere for use in global Chemistry Transport Models and Gener...
Meteorological implementation issues in chemistry and transport models
Meteorological implementation issues chemistry transport models
2009/1/13
Offline chemistry and transport models (CTMs) are versatile tools for studying composition and climate issues requiring multi-decadal simulations. They are computationally fast compared to coupled ch...
On the ability of chemical transport models to simulate the vertical structure of the N2O, NO2 and HNO3 species in the mid-latitude stratosphere
chemical transport models vertical structure N2O HNO3 species mid-latitude stratosphere
2009/1/7
In this paper we study the impact of the modelling of N2O on the simulation of NO2 and HNO3 by comparing in situ vertical profiles measured at mid-latitudes with the results of the Reprobus 3-D CTM (T...
Comparing atmospheric transport models for future regional inversions over Europe – Part~1: mapping the atmospheric CO2 signals
atmospheric transport models Europe atmospheric CO2 signals
2008/11/12
The CO2 source and sink distribution across Europe can be estimated in principle through inverse methods by combining CO2 observations and atmospheric transport models. Uncertainties of such estimates...
Including the sub-grid scale plume rise of vegetation fires in low resolution atmospheric transport models
sub-grid scale vegetation fires atmospheric transport models
2008/11/12
We describe and begin to evaluate a parameterization to include the vertical transport of hot gases and particles emitted from biomass burning in low resolution atmospheric-chemistry transport models.
Vertical mixing in atmospheric tracer transport models: error characterization and propagation
atmospheric tracer transport models error characterization propagation
2008/10/28
Imperfect representation of vertical mixing near the surface in atmospheric transport models leads to uncertainties in modelled tracer mixing ratios. When using the atmosphere as an integrator to deri...