Numerical study of the spatial distribution of the M internal tides in the Strait of Sicily
| Autor: | Jihène Abdennadher, Moncef Boukthir |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences 010505 oceanography Baroclinity Internal tide Computational Mechanics Energy flux Stratification (water) Astronomy and Astrophysics Regional Ocean Modeling System Spatial distribution 01 natural sciences Geophysics Oceanography Mediterranean sea Sill Geochemistry and Petrology Mechanics of Materials Geology 0105 earth and related environmental sciences |
| Zdroj: | Geophysical & Astrophysical Fluid Dynamics. 110:111-129 |
| ISSN: | 1029-0419 0309-1929 |
| DOI: | 10.1080/03091929.2015.1135915 |
| Popis: | The present study investigates the spatial distribution of the M2 internal tide in the Strait of Sicily using a three-dimensional sigma coordinate model, the Regional Ocean Modeling System. Realistic topography and stratification from existing observational data were used. The numerical simulations show that there are three distinct sites of strong M2 internal tide generation, namely the western sill of the Adventure Bank, northwest of Sicily and north of Pantelleria isle. The conversion rate of energy from the M2 surface to internal tide integrated over the whole model domain amounts to 47.5 MW, 75% of which are found to be generated over the three prominent topographic features mentioned above. The depth- integrated baroclinic energy flux depicts the propagation away from these sites, particularly toward the north and southwest. The maximum flux amplitudes are found in the three main generation sites identified, with the largest value occurring at the narrowest passage through the western sill. A compar... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|