Search Results

You are looking at 1 - 10 of 1,158 items for :

  • Refine by Access: All Content x
Clear All
G. T. Aronica and B. Bonaccorso

European rivers is projected to decrease with increasing temperatures and decreasing precipitation. In particular, some river basins in the Mediterranean regions may see decreases of 10% or more below today's levels by 2030. The objective of this study is to qualitatively investigate the effects of predicted short-term climate change scenarios on hydropower potential of the Alcantara River basin, located in the eastern part of Sicily, Italy. The interest in this case study is twofold: on the one hand

Full access
Julio Candela, Salvatore Mazzola, Chérif Sammari, Richard Limeburner, Carlos J. Lozano, Bernardo Patti, and Angelo Bonanno

1. Introduction The objective of the present paper is to investigate the spatial structure and the mechanisms for the excitation of seiche activity in the region of the Strait of Sicily. Common to several ports on the southern coast of Sicily and the coast of Malta is the presence of sea level oscillations with periods ranging from a few minutes to an hour ( Airy 1878 ; Colucci and Michelato 1976 ; Drago and Ferraro 1994 ). In places like the port of Mazara del Vallo, on the southern coast of

Full access
M. Astraldi, G. P. Gasparini, L. Gervasio, and E. Salusti

1. Introduction The Strait of Sicily ( Fig. 1 ) connects the Eastern and the Western Mediterranean basins. It has a minimum width of about 150 km and a length of about 600 km. At its northern boundary lies the rather irregular Sicilian shelf, while eastward there is the Tunisian shelf and the Malta Bank. Two sill systems delimit the strait: on the western side, two passages, respectively ∼430 ( section IV ) and ∼365 m deep ( section V ), connect the strait with the Western Mediterranean basin

Full access
F. Raffa, G. Ludeno, B. Patti, F. Soldovieri, S. Mazzola, and F. Serafino

water usually present on the sea surface, the upwelling phenomenon has a significant impact on the marine environment because is able to boost both the primary and fish production in coastal Mediterranean areas generally characterized by highly oligotrophic conditions ( Agostini and Bakun 2002 ; García Lafuente et al. 2002 ; Patti et al. 2004 , 2008 , 2010 ). This paper is focused on the northern sector of the Strait of Sicily, where often a lower surface water temperature regime along the coast

Full access
C. Herbaut, F. Codron, and M. Crépon

1. Introduction The Western Mediterranean Sea is connected with the Atlantic Ocean by the Strait of Gibraltar and with the Eastern Mediterranean Sea by the Strait of Sicily. Both straits can be idealized as two-layer systems. In the Strait of Sicily the lighter surface Atlantic water flows into the Eastern Mediterranean Sea, while the Levantine Intermediate Water (LIW) enters the Western Mediterranean. The LIW inflow brings salty (38.7 psu) and warm (more than 14°C) water. The Atlantic water

Full access
Gianluca Borzelli and Roberto Ligi

1. Introduction The Channel of Sicily ( Fig. 1 ) is the channel through which water is exchanged between the Eastern and the Western Mediterranean. In the available literature, the vertical structure of the Channel of Sicily is described in terms of two layers: a surface layer of Atlantic Water (AW), flowing eastward, and a bottom layer of water of Levantine origin [Levantine Intermediate Water (LIW)], flowing westward. These waters mix in an intermediate region whose thickness varies

Full access
Stefano Pierini and Angelo Rubino

transformations are expected to affect strongly the water transport through the Strait of Sicily ( Fig. 1 ). Hence, establishing some relationship between dynamical characteristics of the Strait of Sicily and physical and dynamical processes taking place in the Mediterranean basin could allow one to infer the occurrence of the latter from the analysis of signals measured in the strait. This can be achieved by means of numerical models through process-oriented studies, such as the one developed in this paper

Full access
Francesco Raffa, Giovanni Ludeno, Giuseppa Buscaino, Gianmaria Sannino, Adriana Carillo, Rosario Grammauta, Domenico Spoto, Francesco Soldovieri, Salvatore Mazzola, and Francesco Serafino

low frequencies (<1 kHz) ( Hildebrand 2009 ). Despite its high level of biodiversity ( Myers et al. 2000 ), the Mediterranean Sea is affected by heavy traffic, and especially at lower frequencies, the Strait of Sicily, the principal corridor between the eastern and western basins, is characterized by heavy acoustic pollution ( Buscaino et al. 2016 ). Characterizing and evaluating the contributions of natural and anthropogenic sources is crucial for assessing the impact of human-made disturbances

Full access
C. Herbaut, M. Crépon, and L. Mortier

~PONLaboratoire D'Oceanographic Dynamique et de Climatologie, UMR 121, CNRS/UPMC/ORSTOM, Paris, France(Manuscript received 18 April 1994, in final form 20 April 1995)ABSTRACT In this paper, the influence of the density gradients at the straits of Gibraltar and Sicily on the large-scalecirculation of the Western Mediterranean Sea is investigated through a 3D numerical model. The topographyconstraint is analyzed by comparing an experiment with a fiat bottom with an experiment with a realistic bathymetry. The

Full access
Christopher Garrett and Fouad Majaess

inthe Alboran Sea (Fig. I) depends on the varying inflowat the Strait of Gibraltar, and hence on the large-scalemeteorological conditions affecting that variability. Garrett (1983) discussed the response of the Medite.rranean to varying atmospheric pressure, drawingattention to the importance of the Strait of Sicily aswell as the Strait of Gibraltar. He pointed out that theflow through the Straits, in response to sea level differences between the eqds, is controlled at low frequencies by the

Full access