Two aerosol‐borne species, 210 Pb and 7 Be, were simulated on‐line in a low‐resolution
global climate model (ECHAM2). This paper mainly considered 210 Pb, which basically has …

… Feichter, 1998: Model simulations of the changing distribution of ozone and its radiative
forcing of climate: Past present and future. MPI Rep. 283, Max Planck Institute for Meteorology, …

… burden (B 1- ) for January and July are plotted in Fig. 1. B 1- is highest over the main source
regions with distinctly higher values in summer than in winter. In NH mid-latitudes B 1- over …

… 5(b)) looks very similar to SO4 but shows a stronger decrease in concentration with height. …
7(b). The overestimation during spring and summer is probably an artefact of comparing …

… Model B also includes a distinction between two possible trough locations between 3 and 9
… Model B shows the time dependence of the minimum as an Archimedian spiral (degree 3). …

… When we set E equal to zero (case B, Fig. 9), the shape function f(z) equals 1 at all levels.
In this case B, the mass transport in a single cloud has the same magnitude at all levels until …

Aerosols affect the climate system by changing cloud characteristics in many ways. They act
as cloud condensation and ice nuclei, they may inhibit freezing and they could have an …

… The schemes A and B bear some similarity as they both address the short wave energy flux,
… In this contribution, we will focus on the former group and here mainly on group B, as the …

… is the cloud water mixing ratio, and b is the fractional cloud cover. At present, CDNC cannot
be computed realistically in GCMs, because it depends on several factors that are not easy …

A tracer transport scheme was implemented in a global general circulation model (Hamburg
version of the ECMWF weather prediction model) to simulate the transport and chemistry of …