A R C T E X
A R C T E X
A R C T E X
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Wind field and atmospheric stability (Lüers & Bareiss, TAC 2010)<br />
360<br />
Ny-Alesund<br />
NW SE NW SE NW SE<br />
SE<br />
NW<br />
May 2006<br />
0.8<br />
2.0<br />
315<br />
0.7<br />
1.5<br />
wind direction ¨ [°]<br />
270<br />
225<br />
180<br />
135<br />
90<br />
45<br />
0<br />
0.0<br />
07 08 09 10 11 12 13 14 15 16 17 18 19 20<br />
Time [Day]<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
0.2<br />
0.1<br />
u * [m s -2 ]<br />
u¨ [m s¨1]<br />
1.0<br />
0.5<br />
0.0<br />
-0.5<br />
-1.0<br />
-1.5<br />
-2.0<br />
stability z/L z/L ¨ [-] [-]<br />
Interaction of micrometeorological atmospheric stability with change of wind direction<br />
down (SE) or up (NW) Kongsfjord valley<br />
Forced by change of thermal meso-scale atmospheric circulation pattern or synoptic<br />
weather situation around Spitsbergen<br />
Affected by<br />
mountainous Islands covered by glaciers and sea-water filled Fjords<br />
Johannes Lüers<br />
DACH 2010 Bonn<br />
Universität Bayreuth Bayreuther Zentrum für Ökologie und Umweltforschung<br />
Abteilung Mikrometeorologie johannes.lueers@uni-bayreuth.de<br />
6
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