Unit:
Κατεύθυνση Φυσική Περιβάλλοντος (ΕΦΑΡΜΟΣΜΕΝΗ ΦΥΣΙΚΗ)Library of the School of Science
Author:
Γαλανάκη Ελισσάβετ
Supervisors info:
Λέκτορας Σοφιανός Σαράντης (επιβλέπων), Αναπληρώτρια Καθηγήτρια Τόμπρου Τζέλλα Μαρία, Αναπληρώτρια Καθηγήτρια Φλόκα Έλενα
Original Title:
Τα δυναμικά χαρακτηριστικά του αντικυκλώνα mersa-matruh
Summary:
The Mersa – Matruh gyre is located in the southwestern Levantine basin, north
of the Egyptian coast, generally between 26 – 30ο E and 32 – 34ο N with a
diameter of almost 250km. The dynamics and variabilities of the Mersa – Matruh
are a subject. Recent research in the Levantine basin has revealed
variabilities associated with the location, orientation, strength and the
number of centers of the gyre. Also, it is still undefined the reason of
existence of this permanent anticyclonic feature.
Τhe area of the Mersa – Matruh gyre was simulated by the hydrodynamic model POM
(Princeton Ocean Model). Sensitivity experiments were performed in order to
associate the wind stress, the topography in the vicinity of the Mersa – Matruh
and the general regional circulation with the formation and variability of the
feature. The model results indicate that the combination of he negative input
of vorticity by the wind field and the instability of the north African coastal
current is responsible for the formation of negative vorticity center in the
Mersa – Matruh region. The position and the shape of the feature are influenced
by the topographic pattern that can trap the circulation through conservation
of potential vorticity.
Keywords:
Eddy formation, Numerical ocean model, Levantine sea, Sensitive experiments, Simulation of anticyclone gyres
