Observations of the internal tide on the California continental margin near Monterey Bay
| Type | : | ACL |
|---|---|---|
| Nature | : | Production scientifique |
| Au bénéfice du Laboratoire | : | Non |
| Statut de publication | : | Publié |
| Année de publication | : | 2014 |
| Auteurs (5) | : | TERKER S,r GIRTON J,b KUNZE E KLYMAK Jody,m PINKEL R |
| Revue scientifique | : | Continental Shelf Research |
| Volume | : | 82 |
| Fascicule | : | |
| Pages | : | 60-71 |
| DOI | : | 10.1016/j.csr.2014.01.017 |
| URL | : | - |
| Abstract | : | Observations of the semidiurnal internal tide on the California continental margin between Monterey Bay and Point Sur confirm the existence of northward energy flux predicted by numerical models of the region. Both a short-duration tide-resolving survey with expendable profilers and a multi-week timeseries from FLIP measured northward flux in the mean, supporting the hypothesis that topographic features off Point Sur are the source of the strong internal tides observed in Monterey Canyon. However, the observed depth-integrated semidiurnal flux of 450 +/- 200 W m(-1) is approximately twice as large as the most directly-comparable model and FLIP results. Though dominated by low modes with O(100 km) horizontal wavelengths, a number of properties of the semidiurnal internal tide, including kinetic and potential energy, as well as energy flux, show lateral variability on O(5 km) scales. Potential causes of this spatial variability include interference of waves from multiple sources, the sharp delineation of beams generated by abrupt topography due to limited azimuthal extent, and local generation and scattering of the internal tide into higher modes by small-scale topography. A simple two-source model of a first-mode interference pattern reproduces some of the most striking aspects of the observations. (C) 2014 Elsevier Ltd. All rights reserved. |
| Mots-clés | : | Baroclinic tide; Coastally-trapped waves; ENERGETICS; Energy flux; ENERGY FLUXES; Expendable current profilers; GENERATION; OCEAN; PROPAGATION; Spatial variability; TURBULENCE; WAVES |
| Commentaire | : | Times Cited in Web of Science Core Collection: 6 |
| Tags | : | - |
| Fichier attaché | : | - |
| Citation | : |
Terker SR, Girton JB, Kunze E, Klymak JM, Pinkel R (2014) Observations of the internal tide on the California continental margin near Monterey Bay. Cont Shelf Res 82: 60-71 | doi: 10.1016/j.csr.2014.01.017
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