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Simulation of denitrification and ozone loss for the Arctic winter 2002/2003
ozone loss Arctic winter denitrification
2009/2/11
We present simulations with the Chemical Lagrangian Model of the Stratosphere (CLaMS) for the Arctic winter 2002/2003. We integrated a Lagrangian denitrification scheme into the three-dimensional vers...
Simulation of stratospheric water vapor trends: impact on stratospheric ozone chemistry
stratospheric water vapor trends stratospheric ozone chemistry
2009/2/9
A transient model simulation of the 40-year time period 1960 to 1999 with the coupled climate-chemistry model (CCM) ECHAM4.L39(DLR)/CHEM shows a stratospheric water vapor increase over the last two d...
Actinometric measurements of NO2 photolysis frequencies in the atmosphere simulation chamber SAPHIR
Actinometric measurements NO2 photolysis frequencies atmosphere simulation chamber SAPHIR
2009/2/6
The simulation chamber SAPHIR at Forschungszentrum Jülich has UV permeable teflon walls facilitating atmospheric photochemistry studies under the influence of natural sunlight. Because the internal ra...
Model-aided radiometric determination of photolysis frequencies in a sunlit atmosphere simulation chamber
Model-aided radiometric determination photolysis frequencies sunlit atmosphere simulation chamber
2009/1/23
In this work diurnal and seasonal variations of mean photolysis frequencies for the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich are calculated. SAPHIR has a complex construction w...
Simulating aerosol microphysics with the ECHAM4/MADE GCM – Part II: Results from a first multiannual simulation of the submicrometer aerosol
Simulating aerosol microphysics ECHAM4/MADE GCM multiannual simulation submicrometer aerosol
2009/1/21
First results of a multiannual integration with the new global aerosol model system ECHAM4/MADE are presented. This model system enables simulations of the particle number concentration and size-distr...
Modeling of biomass smoke injection into the lower stratosphere by a large forest fire (Part I): reference simulation
biomass smoke lower stratosphere large forest fire
2009/1/20
Wildland fires in boreal regions have the potential to initiate deep convection, so-called pyro-convection, due to their release of sensible heat. Under favorable atmospheric conditions, large fires c...
The atmospheric chemistry general circulation model ECHAM5/MESSy1: consistent simulation of ozone from the surface to the mesosphere
atmospheric chemistry general circulation model ECHAM5/MESSy1 mesosphere
2009/1/19
The new Modular Earth Submodel System (MESSy) describes atmospheric chemistry and meteorological processes in a modular framework, following strict coding standards. It has been coupled to the ECHAM5 ...
Columnar modelling of nucleation burst evolution in the convective boundary layer – first results from a feasibility study Part IV: A compilation of previous observations for valuation of simulation results from a columnar modelling study
nucleation burst convective boundarylayer feasibility study
2009/1/15
In the preceding Papers I, II and III a revised columnar high-order modelling approach to model gas-aerosol-turbulence interactions in the convective boundary layer (CBL) was proposed, and simulation...
The evolution of the global aerosol system in a transient climate simulation from 1860 to 2100
global aerosol system transient climate simulation
2009/1/13
The evolution of the global aerosol system from 1860 to 2100 is investigated through a transient atmosphere-ocean General Circulation Model climate simulation with interactively coupled atmospheric ae...
Nitrate aerosols today and in 2030: a global simulation including aerosols and tropospheric ozone
Nitrate aerosols aerosols tropospheric ozone
2008/12/22
Nitrate aerosols are expected to become more important in the future atmosphere due to the expected increase in nitrate precursor emissions and the decline of ammonium-sulphate aerosols in wide region...
Simulation study of the aerosol information content in OMI spectral reflectance measurements
aerosol information content OMI spectral reflectance
2008/12/12
The Ozone Monitoring Instrument (OMI) is an imaging UV-VIS solar backscatter spectrometer and is designed and used primarily to retrieve trace gases like O3 and NO2 from the measured Earth reflectance...
Technical Note: Simulation of detailed aerosol chemistry on the global scale using MECCA-AERO
detailed aerosol chemistry global scale MECCA-AERO
2008/12/11
We present the MESSy submodel MECCA-AERO, which simulates both aerosol and gas phase chemistry within one comprehensive mechanism. Including the aerosol phase into the chemistry mechanism increases th...
Simulation of solar radiation during a total eclipse: a challenge for radiative transfer
solar radiation eclipse radiative transfer
2008/12/9
A solar eclipse is a rare but spectacular natural phenomenon and furthermore it is a challenge for radiative transfer modelling. Whereas a simple one-dimensional radiative transfer model with reduced ...
A chemistry-transport model simulation of middle atmospheric ozone from 1980 to 2019 using coupled chemistry GCM winds and temperatures
chemistry-transport model middle atmospheric ozone GCM winds
2008/12/9
A global 40-year simulation from 1980 to 2019 was performed with the FinROSE chemistry-transport model based on the use of coupled chemistry GCM-data. The main focus of our analysis is on climatologic...
Mesoscale circulations over complex terrain in the Valencia coastal region, Spain – Part 1: Simulation of diurnal circulation regimes
Mesoscale circulations Valencia coastal region Spain diurnal circulation regimes
2008/12/5
We collected ground-based and aircraft vertical profile measurements of meteorological parameters during a 2-week intensive campaign over the Valencia basin, in order to understand how mesoscale circu...