Se. Gryning et al., METEOROLOGICAL CONDITIONS AT THE RELEASE SITE DURING THE 2 TRACER EXPERIMENTS, Atmospheric environment, 32(24), 1998, pp. 4123-4137
The state of the boundary layer at the release site during the two tra
cer experiments is described, based on measurements of atmospheric tur
bulence carried our by a sonic anemometer, profiles of horizontal and
vertical wind by a SODAR as well as frequent radiosonde releases. The
boundary layer height is derived from radiosoundings, modelled and dis
cussed. The study is meant as background for discussions of the tracer
behaviour near the release site, and possible influence of the local
meteorology at the release site on the long-range dispersion. The diff
erence in the initial mese-meteorological conditions between the two e
xperiments is discussed and some of its consequences for the dispersio
n of the released tracer are clarified. It is concluded that the first
experiment is well suited for validation of long-range transport and
dispersion models, whereas the second experiment calls for further mod
el development. It is concluded that the micrometeorological measureme
nts are very important as background information for the understanding
of plume behaviour on small as well as long scales. (C) 1998 Elsevier
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