Naslov
Summer breakout of trapped bottom dense water from the northern Adriatic

Autori
Vilibić, Ivica ; Beg Paklar, Gordana ; Žagar, Nedjeljka ; Mihanović, Hrvoje ; Supić, Nastjenjka ; Žagar, Mark ; Domijan, Nenad ; Pasarić, Miroslava

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Recent Advances in Adriatic Oceanography and Marine Meteorology / Orlić, Mirko ; Pasarić, Miroslava - Zagreb : Geofizički odsjek Prirodoslovno-matematičkog fakulteta Sveučilišta u Zagrebu, 2008, 59-59

ISBN
978-953-6076-18-5

Skup
Recent Advances in Adriatic Oceanography and Marine Meteorology

Mjesto i datum
Dubrovnik, Hrvatska, 05.11.2008. - 07.11.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
mesoscale storm; air-sea interaction; bottom dynamics; northern Adriatic

Sažetak
The paper deals with an intriguing dense-water breakout episode in mid-August 2004 which has been observed in the bottom layers of the oil rig located in the middle of the Northern Adriatic. Various data (temperature series and vertical T-S profiles, currents, meteorological measurements, satellite images) have been analyzed in order to understand conditions which preceded, were active and followed the breakout episode. A stationary bottom pool of dense water, generated during the previous winter, has been suspected to be a source of the dense water observed during the breakout, with a permanent position established by a stationary Northern Adriatic cyclonic-anticyclonic gyre system. The breakout lasted for three days, advecting the bottom waters more than 2oC colder than residing waters at the oil rig site. The main result of modeling experiments concerns the generative force for the observed breakout which was found to be a mesoscale storm that occurred over the open north Adriatic on 8 August 2004. The storm has been reproduced by the COAMPS® ; atmospheric model which was then used to force the Princeton Ocean Model (POM) at the surface. Results of simulations reveal the capability of the storm to break the thermohaline fronts through the wind-induced baroclinic transport and downwelling at the exposed shorelines. This is the first study which evaluates the impact of mesoscale summer storm in the Adriatic, driving bottom-layer circulation through the convergence/divergence dynamics in addition to the direct impact on the sea surface through the wind stress forcing.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Biologija

Napomena
Nedjeljka Žagar (r. Brzović) vodi se u evidenciji znanstvenika MZOŠ-a pod brojem 221165

POVEZANOST RADA