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Tropospheric aerosol size distributions simulated by three online global aerosol models using the M7 microphysics module
Tropospheric aerosol size distributions three online global aerosol models the M7 microphysics module
2010/8/16
Tropospheric aerosol size distributions are simulated by three online global models which employ exactly the same aerosol microphysics module, but differ in many aspects such as model meteorology, nat...
Anthropogenic aerosol radiative forcing in Asia derived from regional models with atmospheric and aerosol data assimilation
Anthropogenic aerosol radiative Asia regional models atmospheric aerosol data assimilation
2010/8/16
An estimate of monthly 3-D aerosol solar heating rates and surface solar fluxes in Asia from 2001 to 2004 is described here. This product stems from an Asian aerosol assimilation project, in which a) ...
Hygroscopic properties of Amazonian biomass burning and European background HULIS and investigation of their effects on surface tension with two models linking H-TDMA to CCNC data
Hygroscopic properties H-TDMA CCNC data surface tension
2010/8/13
HUmic-LIke Substances (HULIS) have been identified as major contributors to the organic carbon in atmospheric aerosol. The term "HULIS" is used to describe the organic material found in aerosol partic...
Technical Note: Sensitivity of 1-D smoke plume rise models to the inclusion of environmental wind drag
1-D smoke plume rise models environmental wind drag Sensitivity
2010/2/1
Vegetation fires emit hot gases and particles which are rapidly transported upward by the positive buoyancy generated by the combustion process. In general, the final vertical height that the smoke pl...
Explicit calculation of indirect global warming potentials for halons using atmospheric models
Explicit calculation halons atmospheric models
2009/11/19
The concept of Global Warming Potentials (GWPs) has been extensively used in policy consideration as a relative index for comparing the climate impact of an emitted greenhouse gas (GHG), relative to c...
An elevated large-scale dust veil from the Taklimakan Desert: Intercontinental transport and three-dimensional structure as captured by CALIPSO and regional and global models
large-scale dust Taklimakan Desert CALIPSO
2009/11/19
An intense dust storm occurred during 19–20 May 2007 over the Taklimakan Desert in northwestern China. Over the following days, the space-borne lidar CALIOP tracked an optically thin, highly elevated,...
Exploiting the weekly cycle as observed over Europe to analyse aerosol indirect effects in two climate models
Europe aerosol indirect effects climate models
2009/11/19
A weekly cycle in aerosol pollution and some meteorological quantities is observed over Europe. In the present study we exploit this effect to analyse aerosol-cloud-radiation interactions. A weekly cy...
Analytical treatment of ice sublimation and test of sublimation parameterisations in two–moment ice microphysics models
Analytical treatment ice sublimation two–moment ice microphysics models
2009/10/9
We derive an analytic solution to the spectral growth/sublimation equation for ice crystals and apply it to idealised cases. The results are used to test parameterisations of the ice sublimation proce...
Evaluation of recently-proposed secondary organic aerosol models for a case study in Mexico City
recently-proposed secondary organic aerosol models case study Mexico City
2009/8/18
Recent field studies have found large discrepancies in the measured vs. modeled SOA mass loadings in both urban and regional polluted atmospheres. The reasons for these large differences are unclear. ...
A two-step scheme for high-resolution regional atmospheric trace gas inversions based on independent models
high-resolution regional atmospheric trace gas independent models
2009/8/7
Mixing ratio measurements of atmospheric tracers like CO2 can be used to estimate regional surface-air tracer fluxes using inverse methods, involving a numerical transport model. Currently available t...
Comparison of tropospheric gas-phase chemistry schemes for use within global models
tropospheric gas-phase chemistry schemes global models
2009/3/13
Methane and ozone are two important climate gases with significant tropospheric chemistry. Within chemistry-climate and transport models this chemistry is simplified for computational expediency. We c...
Climatologies of subtropical mixing derived from 3D models
Climatologies subtropical 3D models
2009/3/11
Fingerlike structures reaching from lower into extra-tropical latitudes significantly contribute to the tropical-extratropical exchange of air masses. This is also an exchange of upper tropospheric an...
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...
Uncertainties and assessments of chemistry-climate models of the stratosphere
chemistry-climate models stratosphere
2009/3/10
In recent years a number of chemistry-climate models have been developed with an emphasis on the stratosphere. Such models cover a wide range of time scales of integration and vary considerably in co...
CCN activation and cloud processing in sectional aerosol models with low size resolution
CCN activation cloud processing sectional aerosol models low size resolution
2009/2/17
We investigate the influence of low size resolution, typical to sectional aerosol models in large scale applications, on cloud droplet activation and cloud processing of aerosol particles. A simplifie...