H.-W. Georgii

TL;DR: The physical and chemical behaviour of the fog multiphase system was studied experimentally following the temporal evolution of the relevant chemical species in the different phases (gas, droplet, interstitial aerosol) and the evolution of micrometeorological and microphysical conditions, from the pre-fog situation through the whole fog evolution, to the post-fogging period.

TL;DR: In this paper, the authors measured SO2 absorption by 2 mm dia. droplets of dilute heavy metal solutions (concentration 10−6−10−4 m) exposed to trace concentration of SO2 in air (10−1000 ppb) was measured at 25 and 8°C.

TL;DR: In this paper, the large-scale distribution of SO 2, H 2 S and sulfate-aerosols in the upper troposphere and lower stratosphere has been investigated.

TL;DR: The Kleiner Feldberg cloud experiment performed from 27 October until 13 November 1990 was carried out by numerous European research groups as a joint effort within the EUROTRAC-GCE project in order to study the interaction of cloud droplets with atmospheric trace constituents as mentioned in this paper.

TL;DR: A number of aircraft-ascents were made to investigate the vertical distribution of on NH 3 and NH 4 + and revealed a sharp decrease of the concentration in the ground layer of the troposphere approaching a constant concentration above 2 km altitude.