Observations on Chatham Rise currents
- 1 September 1983
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Marine and Freshwater Research
- Vol. 17 (3) , 321-330
- https://doi.org/10.1080/00288330.1983.9516006
Abstract
Observations from a string of 3 current meters over a 34 day period on the Chatham Rise, New Zealand reveal: (1) the strongest flow is that associated with the M2 barotropic tide and is consistent with a trapped wave rotating anticlockwise around New Zealand; (2) a lesser M2 baroclinic signal which accounts for about a quarter of the M2 tidal variance; (3) an unusually strong diurnal tide signal which is probably associated with a continental shelf wave; and (4) a mean flow with an eastward component but with meridional components, which are consistent with a model of the Subtropical Convergence, with northward flow near the surface and southward flow near the bottom.Keywords
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