Search
Now showing items 1-9 of 9
The adjoint method of data assimilation used operationally for shelf circulation
(1996-02)
A real-time shelf circulation model with data assimilation has been successfully used, possibly for the first time, on the outer Nova Scotian Shelf, The adjoint method was used to infer the time histories of flows across ...
A robust method for diagnosing regional shelf circulation from scattered density profiles
(1996-11)
We present a straightforward method for estimating surface circulation on an f plane from a set of irregularly spaced vertical density profiles. The first step is to express bottom density rho(h) as the sum of a mean for ...
A modified galerkin-spectral model for three-dimensional, barotropic, wind-driven shelf circulation
(1993)
The authors describe an efficient numerical scheme for calculating wind-driven currents on the continental shelf. Our scheme is based on the spectral approach introduced by Heaps and subsequently modified by Lardner. The ...
Surface heat flux, horizontal advection, and the seasonal evolution of water temperature on the Scotian Shelf
(1994)
Seasonal temperature variations on the Scotian Shelf penetrate to a depth of about 75 m. The net surface heat flux (Q) can explain about 85% of the annual cycle in the rate of change of mean temperature over this depth ...
Extraction of tidal streams from a ship-borne acoustic Doppler current profiler using a statistical-dynamical model
(1996-04)
We present a method for extracting the barotropic tide directly from the time-space series of horizontal velocity obtained by a ship-borne acoustic Doppler current profiler (ADCP). The method is conceptually straightforward, ...
The detection of coastal-trapped waves
(1991-02/15)
The authors outline a simple method for estimating the cross-spectral matrix of coastal-trapped wave amplitudes, A, from a set of oceanographic observations. Specifically, they propose that A may be estimated by ...
A model of the circulation on the outer Scotian shelf with open boundary conditions inferred by data assimilation
(American Geophys. Union, 1998-12/15)
The circulation on Western Bank is described using data collected in spring 1991 and 1992 as part of an interdisciplinary study of the early life history of Atlantic cod (Gadus morhua). The mean circulation over the crest ...
Subtidal circulation on the Scotian Shelf: assessing the hindcast skill of a linear, barotropic model
(American Geophys. Union, 1997-11/15)
Currents measured during the winter of 1985-1986 by four moorings on the inner Scotian Shelf are used to assess the hindcast skill of a three-dimensional circulation model forced by local wind stress and coastal sea level. ...
A description of water types on the Mackenzie Shelf of the Beaufort Sea during winter
(1992)
For a number of years during the 1980s, observations of the physical and chemical properties of seawater in the southeastern Beaufort Sea have been acquired in late winter. The most complete data set, from 1987, has been ...