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Study Experiment (ARTIST) at Ny-Ålesund (Spitzbergen) in 1998 is presented. As expected, the wind fi eld
and the thermal structure of the boundary layer are strongly infl uenced by the katabatic fl ow blowing along the
Kongsfjorden. In particular, if the large scale circulation has a component along the same direction, the resulting
low level wind reaches velocities comparable with geostrophic wind. Stable to neutral conditions occurred most
of the time, sustaining inversion or spiky layers respectively, depending on the wind intensity. The behaviour of
some micrometeorological parameters was examined in relation to the general fl ow pattern and the characteristics
of this area. The highest values of surface sensible heat fl ux (with negative sign) were observed during daytime,
in presence of forced convection, due to the transfer of warmer upper layer air into the surface layer.
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