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| Content Provider | Springer Nature Link |
|---|---|
| Author | Haren, Hans Greinert, Jens |
| Copyright Year | 2016 |
| Abstract | Filament intrusions are observed in high-resolution temperature (T) measurements from a 100-m and several month-long mooring in the Fram Strait in around 400-m water depth at the continental slope West of Svalbard (Spitsbergen, Norway). In this dynamic environment, a wide variety of intrusive layers are observed with thicknesses between 5 and 80 m with warmer water between cooler waters above and below. The layers typically last from several hours up to 1 day, exceeding the local buoyancy period but not lasting as long as intrusive layers in the open ocean. The intrusions are a result of an intermingling of Arctic and North-Atlantic waters and generated in the basins interior and locally via internal wave steepening upon the sloping bottom. Freely propagating semidiurnal lunar internal tides cannot exist without background vorticity at these high latitudes. Strongly nonlinear turbulent bores are not observed at the tidal periodicity, but wave fronts occur at the sub-inertial frequency of dominant baroclinic instability. The fronts are in part associated with near-buoyancy frequency internal waves (breaking). The details of the moored T observations and their spectral content demonstrate the non-smooth, relatively turbulent development including convective overturning and shear-induced instabilities when intrusions disperse in presumably salinity-compensated isopycnal layers. |
| Starting Page | 785 |
| Ending Page | 794 |
| Page Count | 10 |
| File Format | |
| ISSN | 16167341 |
| Journal | Deutsche Hydrografische Zeitschrift |
| Volume Number | 66 |
| Issue Number | 6-7 |
| e-ISSN | 16167228 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2016-05-17 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | High-resolution temperature observations West Svalbard Poleward of critical lunar tidal latitude Intrusions High-frequency internal wave breaking Non-smooth isopycnal dispersal Oceanography Geophysics/Geodesy Atmospheric Sciences Fluid- and Aerodynamics Environmental Monitoring/Analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Oceanography |
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