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Ann. Geophys., 26, 1711-1724, 2008
www.ann-geophys.net/26/1711/2008/
© European Geosciences Union 2008
Rotation of sea/land breezes along the northeastern Adriatic coast
M. T. Prtenjak, Z. Pasarić, M. Orlić, and B. Grisogono
Department of Geophysics, Faculty of Science, University of Zagreb, Croatia
Abstract. The diurnal evolution of the sea/land breeze hodographs over the
northeastern Adriatic coast has been examined for several episodes, each
lasting a few days. A limited set of observations, as well as the results of a
three-dimensional nonhydrostatic mesoscale model are studied by applying a
rotary-component method. This revealed a spatial distribution of the clockwise
versus anti-clockwise rotation of the wind vectors for the sea/land breeze
events. An application of the rotary-component method to the results of
additional numerical sensitivity tests showed that the coastal topography
height considerably influences both the shape of the wind hodographs and the
sense of wind rotation. The method also displayed which areas are under a
strong influence of the 24-h topographic forcing and which areas show a
large wind consistency. A further analysis of the 24-h modeled wind
hodographs at several selected stations has been performed, thus revealing
the hodograph shapes and the reasons for them.
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