A study of the deltaic coast morphometry of river Pinios in relation to its hydro- & sediment dynamics

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

Study of the wave characteristics of the greek seas in relation to the present and future atmospheric conditions and their impact on the coastal zone

“…It is characterized by a variety of geological formations with several lithological combinations, which vary on erosion rates (Stournaras and Galani, 1995). The lithology of the drainage area mostly consists by alluvial and clastic deposits (68%), metamorphic rocks (15.2%), igneous rocks (5.3%) and a variety of calcareous deposits (11.5%) (Foutrakis et al, 2007).…”

“…In the case of Pinios River area, all scenarios present a change in the directionality of the waves at both areas, one close to the mouth of the river (north) and one at the settlement of Stomio (south); the latter used to be the active mouth of the river until the 1930's (Stournaras and Galani, 1995;Foutrakis et al, 2007). Furthermore, the northern area of Pinios, especially for the Scenarios 2, 3 and 4 for all wave directionality, presents changes in wave height from depths of close to 30 m, leading to the confirmation of the appearance of the transitional zone ; in the cases of 2% can be from 25 to 37 m depth; from offshore to nearshore conditions, as estimated from the empirical equations of CERC (1984) 1984).…”