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Advancements in understanding the meso- and micro- scale bora wind properties (CROSBI ID 532646)

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Grisogono, Branko ; Belušić, Danijel ; Žagar, Mark Advancements in understanding the meso- and micro- scale bora wind properties // International Mini-Conference "Heat, mass and momentum transfer in katabatic winds over glaciers and ice sheets : towards a better formulation of the lower boundary condition in climate models" Utrecht, Nizozemska, 14.01.2008-17.01.2008

Podaci o odgovornosti

Grisogono, Branko ; Belušić, Danijel ; Žagar, Mark

engleski

Advancements in understanding the meso- and micro- scale bora wind properties

A gusty downslope windstorm blowing at the eastern Adriatic coast is named bora. Related hourly mean wind speeds surpassing 20 m/s, with gusts reaching up to 50 or even 70 m/s, in the coastal mountain lee areas are typical (hurricane speeds). Substantial prospects in bora observations and measurements, understanding, modeling and its more detailed prediction during the last ~25 years will be discussed. It was generally thought before that bora was a falling, mostly thermodynamically driven wind ; however, bora is governed by mountain-wave breaking. The overall prospect mentioned would not be feasible without airborne data, nonlinear theory and advancements in computational techniques, especially mesoscale numerical models. However, the role of the boundary layer and waves in the upwind side in the bora evolution and the consequent lee-side flow structures are not understood adequately ; similarly, dynamical switches between weak-to- moderate to strong-to-severe bora flows and vice versa are understood inadequately.

pulsations; rotors; Coriolis effects; air-sea interaction;

Projekt NATO-DMI ; BORA (119-1193086-1311) ; Autor je pozvan da izloži sadašnje spoznaje o zavjetrinskim olujama, posebice olujnom vjetru buri, pripadnoj mezoskalnoj i mikroskalnoj strukturi strujanja. Predavanje je također rezultiralo pozvanim preglednim člankom u 'Tellus A', siječanj 2009. (http://bib.irb.hr/prikazi-rad?&rad=365902)

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Podaci o prilogu

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Podaci o skupu

International Mini-Conference "Heat, mass and momentum transfer in katabatic winds over glaciers and ice sheets : towards a better formulation of the lower boundary condition in climate models"

pozvano predavanje

14.01.2008-17.01.2008

Utrecht, Nizozemska

Povezanost rada

Geologija