No abstract

No abstract

No abstract

This paper refers to the study of the morphodynamic processes, on a seasonal basis, in the river delta of Pinios (Greece) with the application of the discharge effectiveness index (Ef) -which associates the water discharge (D) with the wave power (PJ-and the estimation of the potential longshore sediment transport (Ql). The delta is characterised according to the classification proposed by Galloway (1975) and revised by Briggs et al (1997) Galloway (1975) Περίληψη Η παρούσα εργασία ασχολείται με τη μελέτη των μορφοδυναμικών διεργασιών, σε εποχιακή βάση, του δέλτα τον ποταμού Πηνειού με τη χρήση του "δείκτη αποτελεσματικότητας της ποτάμιας απορροής " (Ef) -που συσχετίζει την παροχή νερού (D) με την κυματική ισχύ (Ρ)-και τον υπολογισμό της δυνητικής παράκτιας στερεομεταφοράς (Ql). Το δέλτα ταξινομείται σύμφωνα με την ταξινόμηση που προτάθηκε από τον

High-resolution swath-bathymetry has been acquired during recent surveys in Saronikos Gulf, near the densely populated city of Athens. This paper presents the first detailed bathymetric map, at a scale of 1:12,000, of the active Submarine Pausanias Volcanic Field located offshore NW Methana Peninsula in Saronikos Gulf, Aegean Sea (Main Map). Rugged morphology characterizes the volcanic field that includes mainly cone-shaped features. Six volcanic outcrops, covering an area of about 12 km 2 , have been morpho-bathymetrically outlined, and their sub-bottom character has been described by the integration of 2D seismic reflection profiles. Two groups of outcrops have been distinguished. An older group comprising more complex, erosional-shaped outcrops, and a younger group consisting of sub-conical outcrops. Both groups have been morphologically correlated to their onshore equivalents in the adjacent peninsula of Methana. Despite the active tectonic regime of the region, no evidence of mass transport-related features have been observed.