Modelling the seasonal variability of the general circulation of the Mediterranean Sea

dc.contributor.author	Δρακόπουλος, Πάνος	el
dc.contributor.author	Κορρές, Γεράσιμος	el
dc.contributor.author	Λασκαράτος, Αλέξανδρος	el
dc.date.accessioned	2015-01-23T14:07:03Z
dc.date.issued	2015-01-23
dc.identifier.uri	http://hdl.handle.net/11400/4608
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	Princeton Ocean Model
dc.subject	Mediterranean Sea
dc.subject	Oceanographic measurement
dc.subject	Tyrrhenian Sea
dc.subject	Μεσόγειος θάλασσα
dc.subject	Ωκεανογραφική μέτρηση
dc.subject	Τυρρηνικό Πέλαγος
dc.title	Modelling the seasonal variability of the general circulation of the Mediterranean Sea	en
heal.type	conferenceItem
heal.secondaryTitle	monthly vs daily forcing.	en
heal.classification	Ophthalmology
heal.classification	Optics
heal.classification	Οφθαλμολογία
heal.classification	Οπτική
heal.classificationURI	http://skos.um.es/unescothes/C02842
heal.classificationURI	http://skos.um.es/unescothes/C02847
heal.classificationURI	N/A-Οφθαλμολογία
heal.classificationURI	N/A-Οπτική
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85083236
heal.keywordURI	http://skos.um.es/unescothes/C02812
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh86006225
heal.dateAvailable	10000-01-01
heal.language	en
heal.access	forever
heal.recordProvider	Τ.Ε.Ι. Αθήνας, Σχολή Επαγγελμάτων Υγείας & Πρόνοιας, Τμήμα Οπτικής & Οπτομετρίας	el
heal.publicationDate	1998-11-12
heal.bibliographicCitation	Drakopoulos, P.G., Corres, G. and Lascaratos, A. (1998). Modelling the seasonal variability of the general circulation of the Mediterranean Sea: monthly vs daily forcing. International conference: coastal and ocean modelling, Malta. 12-14/11/1998.	en
heal.abstract	Within the framework of the Mediterranean models evaluation experiment, a Princeton Ocean Model (POM) of the Mediterranean has been developed in University of Athens. It has a horizontal resolution of 0.25 degrees in longitude and latitude and 32 levels in vertical. Here we report the results for year 15 of two perpetual experiments with monthly and daily meteorological forcing accordingly. For the first integration with monthly mean forcing, the model was ran with restoring boundary conditions for both temperature and salinity and monthly climatological momentum fluxes derived from ECMWF daily means averaged for the period 1986-1992. For the second integration the model was forced using ECMWF daily mean heat, evaporation and momentum flux fields for 1988 (which is considered a typical year). In addition, precipitation data were taken from Jaeger's monthly climatology and E-P flux was additionally corrected using a smooth relaxation to monthly SSS climatology. The mam features of the Mediterranean Sea general circulation are reproduced satisfactory in both experiments (i.e. Algerian current and its anticyclones, Gulf of Lions Gyre, Tyrrhenian cyclonic circulation, positioning of the MMJ, Rhodes gyre). Seasonal changes are evident within the Tyrrhenian and the Ionian basm as expected. The annual surface heat flux averages to 6 Wm'2 for the monthly forcing run and to 2 Wm'2 for the daily forcing run. The positive budget results in a continuous increase of the mean temperature field which is more evident in the first integration. The E-P budget for both experiments is -0.4 myr'1, however the salinity field reaches equilibrium much faster in the daily forcing run. Although the model is skillful in reproducing the seasonal variability of the general circulation, it is not able to form the deep waters of the basm mainly due to the weakness of the surface heat and salinity fluxes. While the amplitude of the heat flux field is improved with the daily forcing run, again the model is unable to produce the deep waters of the WMED (Gulf of Lions) and only a shallow convection occurs during March. On the other hand the LIW formation process and its spreading is more realistic particularly in the second experiment. Finally, the transports through the major straits remain similar for both runs (Gibraltar 1.2 / 1.1 Sv , Sicily 2/2.4 Sv, Otranto 0.4 / 0.4 Sv).	en
heal.fullTextAvailability	true
heal.conferenceName	International conference: coastal and ocean modelling, Malta	en
heal.conferenceItemType	full paper