1Department of Physics and Astronomy, University of Bologna, Bologna,
2Centro EuroMediterraneo sui Cambiamenti Climatici, Bologna, 40128,
3Istituto per lo studio dell'Ambiente Marino Costiero-CNR, Taranto,
4Istituto Idrografico della Marina, Genoa, 16134, Italy
5Istituto Nazionale di Geofisica e Vulcanologia, Bologna, 40128, Italy
6Istituto di Scienze Marine-CNR, Venice, 30122, Italy
7Department of Civil, Environmental, Building Engineering and
Chemistry, Technical University of Bari, Italy
Received: 15 May 2016 – Published in Nat. Hazards Earth Syst. Sci. Discuss.: 03 Jun 2016
Abstract. A multiscale sampling experiment was carried out in the Gulf of Taranto (eastern Mediterranean) providing the first synoptic evidence of the large-scale circulation structure and associated mesoscale variability. The mapping of the mesoscale and large-scale geostrophic circulation showed the presence of an anticyclonic large-scale gyre occupying the central open ocean area of the Gulf of Taranto. On the periphery of the gyre upwelling is evident where surface waters are colder and saltier than at the center of the gyre. Over a 1-week period, the rim current of the gyre undergoes large changes which are interpreted as baroclinic–barotropic instabilities, generating small-scale cyclonic eddies in the periphery of the anticyclone. The eddies are generally small, one of which can be classified as a submesoscale eddy due to its size. This eddy field modulates the upwelling regime in the gyre periphery.
Accepted: 02 Nov 2016 – Published: 09 Dec 2016
Pinardi, N., Lyubartsev, V., Cardellicchio, N., Caporale, C., Ciliberti, S., Coppini, G., De Pascalis, F., Dialti, L., Federico, I., Filippone, M., Grandi, A., Guideri, M., Lecci, R., Lamberti, L., Lorenzetti, G., Lusiani, P., Macripo, C. D., Maicu, F., Mossa, M., Tartarini, D., Trotta, F., Umgiesser, G., and Zaggia, L.: Marine Rapid Environmental Assessment in the Gulf of Taranto: a multiscale approach, Nat. Hazards Earth Syst. Sci., 16, 2623-2639, doi:10.5194/nhess-16-2623-2016, 2016.