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Consistency between parameterisations of aerosol hygroscopicity and CCN activity during the RHaMBLe discovery cruise
aerosol hygroscopicity CCN activity
2010/8/12
Results from a measurement study performed in the Tropical Atlantic on board the RHaMBLe Discovery Cruise D319 are presented. Measurements of aerosol composition, hygroscopicity and CCN activity were ...
Uncertainties in atmospheric chemistry modelling due to convection parameterisations and subsequent scavenging
atmospheric chemistry modelling parameterisations subsequent scavenging
2010/2/21
Moist convection in global modelling contributes significantly to the transport of energy, momentum, water and trace gases and aerosols within the troposphere. Since convective clouds are on a scale t...
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...
Influence of different convection parameterisations in a GCM
different convection parameterisations GCM
2009/1/21
In global models of the atmosphere convection is parameterised, since the typical scale of this process is smaller than the model resolution. Here we address some of the uncertainties arising from the...
Lightning and convection parameterisations – uncertainties in global modelling
Lightning convection parameterisations global modelling
2008/12/18
The simulation of convection, lightning and consequent NOx emissions with global atmospheric chemistry models is associated with large uncertainties since these processes are heavily parameterised. Ea...