WIT Press

Numerical Investigations Of The Dry Deposition Of Reactive Trace Gases

Price

Free (open access)

Paper DOI

10.2495/AIR940331

Volume

3

Pages

23

Published

1994

Size

1,677 kb

Author(s)

G. Kramm, R. Dlugi, N. Molders & H. Mulled

Abstract

Results from numerical investigations regarding the dry deposition of reactive trace gases like NO, NO2, and Og are presented. The investigations were carried out with a numerical model of the atmospheric boundary layer, which simulates the meteorological and photochemical processes as well as the heat and moisture transport processes within the vegetation-soil system as a function of height (depth) and time. The model is briefly described here. The model results show that the dry deposition fluxes of reactive trace gases are not only influenced by meteorological and plant-physiological parameters, but also by chemical reactions. In most cases, the trace gas fluxes vary strongly with height and often even show a change in the direc- tion. The fluxes dif

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