February 2003 marine atmospheric conditions and the bora over the northern Adriatic

Clive E. Dorman, S. Carniel, L. Cavaleri, M. Sclavo, J. Chiggiato, J. Doyle, T. Haack, J. Pullen, B. Grbec, I. Vilibić, I. Janeković, C. Lee, V. Malačič, M. Orlić, E. Paschini, A. Russo, R. P. Signell

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71 Citations (Scopus)


A winter oceanographic field experiment provided an opportunity to examine the atmospheric marine conditions over the northern Adriatic. Mean February winds are from a northeasterly direction over most of the Adriatic and a more northerly direction along the western coast. Wind speeds are fastest in jets over the NE coast during bora events and weakest in the mid-northwestern Adriatic. Diurnal air temperature cycles are smallest on the NE coast and largest in the midwestern Adriatic. The maximum sea-air difference is +10°C on the eastern coast and near zero on the midwestern Adriatic. Boras are northeasterly (from) wind events that sweep off Croatia and Slovenia, bringing slightly colder and drier air over the northern Adriatic. The main bora season is December to March. Winter 2002-2003 was normal for bora events. Synoptic-scale temporal variations are correlated over the northern Adriatic. Fastest Bora winds and highest wind stress over the northern Adriatic is concentrated in four topographically controlled jets. The strongest is the Senj Jet, while the Trieste Jet extends across the entire northern Adriatic. Between each two jets is a weak wind zone. The greatest mean net heat loss is in bora jets in the NE Adriatic, where it was -438 W m-2 and is weakest in the midwestern northern Adriatic, where it was near zero. Wind stress is concentrated over the NE half of Adriatic in four bora jets, while wind stress is weak in the NW Adriatic. There is significant variation in wind stress mean and standard deviation structure over the northern Adriatic with each bora event.

Original languageEnglish
Article numberC03S03
JournalJournal of Geophysical Research: Oceans
Issue number3
Publication statusPublished - 8 Mar 2007
Externally publishedYes


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