ORCID
- Vasiliy Vlasenko: 0000-0002-1889-5493
- Phil Hosegood: 0000-0002-4415-7152
- W. Alex M. Nimmo-Smith: 0000-0003-3108-9231
Abstract
Tidally induced residual currents generated over shelf-slope topography are investigated analytically and numerically using the Massachusetts Institute of Technology general circulation model. Observational support for the presence of such a slope current was recorded over the Malin Sea continental slope during the 88-th cruise of the RRS “James Cook” in July 2013. A simple analytical formula developed here in the framework of time-averaged shallow water equations has been validated against a fully nonlinear nonhydrostatic numerical solution. A good agreement between analytical and numerical solutions is found for a wide range of input parameters of the tidal flow and bottom topography. In application to the Malin Shelf area both the numerical model and analytical solution predicted a northward moving current confined to the slope with its core located above the 400 m isobath and with vertically averaged maximum velocities up to 8 cm s−1, which is consistent with the in-situ data recorded at three moorings and along cross-slope transects.
DOI Link
Publication Date
2017-05-01
Publication Title
Continental Shelf Research
Volume
139
ISSN
0278-4343
Acceptance Date
2017-03-24
Embargo Period
2018-03-29
Keywords
Malin shelf, Slope currents, Tides
First Page
21
Last Page
34
Recommended Citation
Stashchuk, N., Vlasenko, V., Hosegood, P., & Nimmo-Smith, W. (2017) 'Tidally induced residual current over the Malin Sea continental slope', Continental Shelf Research, 139, pp. 21-34. Available at: 10.1016/j.csr.2017.03.010
