Index Catalog // Hyrax

O Criador:: Samelson, Roger M. and Allen, J. S.
Abstract:: Observations of oppositely directed, monthly mean alongshore currents and wind stress over the continental margin off the Pacific coast of North America motivate the theoretical examination of mean flow generation by topographic lee-wave drag. We formulate a barotropic model for wind-forced shelf-slope flow over variable topography. Our central objective is...
Resource Type:: Article

O Criador:: Federiuk, J. and Allen, J. S.
Abstract:: Two-dimensional, primitive equation model studies of wind-forced flow over a continental shelf Show that, under upwelling conditions, high levels of near-inertial wave energy are found in the interior over the shelf. The regions of elevated wave energy, with maximum wave amplitudes of around ±0.2 m s⁻¹, persist for up to...
Resource Type:: Article

O Criador:: Barth, J. A., Allen, J. S., and Newberger, P. A.
Abstract:: As part of a program to improve understanding of the dynamics of the complicated, vigorous eddy and jet flow fields recently observed over the continental shelf and slope, we investigate the potential of intermediate models for use in both process and data assimilation studies of these flows. Intermediate models incorporate...
Resource Type:: Article

O Criador:: Allen, J. S., Barth, J. A., and Newberger, P. A.
Abstract:: Motivated by the general objective of pursuing oceanographic process and data assimilation studies of the complex, nonlinear eddy and jet current fields observed over the continental shelf and slope off the west coast of the United States, we investigate the use of intermediate models for that purpose. Intermediate models contain...
Resource Type:: Article

O Criador:: Allen, J. S.
Abstract:: A two-layer model is used to study the properties of free coastal trapped waves which propagate over an idealized continental shelf and continental slope bottom topography. With both stratification and depth variations that are typical of continental shelf and slope regions, barotropic shelf waves and baroclinic internal Kelvin waves axe...
Resource Type:: Article

O Criador:: Spillane, M. C., Enfield, D. B., and Allen, J. S.
Abstract:: Hourly observations of coastal sea level at stations from Peru to British Columbia are analyzed for low-frequency content. A space-time contour plot of sea level, from four years of data during the 1971–75 period, shows the meridional structure of the seasonal cycle and interannual variability associated with the 1972–73 El...
Resource Type:: Article

O Criador:: Shearman, R. Kipp, Barth, John A., Allen, J. S., and Haney, Robert L.
Abstract:: Several diagnoses of three-dimensional circulation, using density and velocity data from a high-resolution, upper-ocean SeaSoar and acoustic Doppler current profiler (ADCP) survey of a cyclonic jet meander and adjacent cyclonic eddy containing high Rossby number flow, are compared. The Q-vector form of the quasigeostrophic omega equation, two omega equations derived...
Resource Type:: Article

O Criador:: Scott, R. K., Allen, J. S., Egbert, G. D., and Miller, R. N.
Abstract:: An idealized, linear model of the coastal ocean is used to assess the domain of influence of surface type data, in particular how much information such data contain about the ocean state at depth and how such information may be retrieved. The ultimate objective is to assess the feasibility of...
Resource Type:: Article

O Criador:: Romea, R. D. and Allen, J. S.
Abstract:: Vertically propagating coastal internal Kelvin waves (IKWs) forward by the alongshore component of the wind at the coast are studied, utilizing an ƒ-plane model of a continuously stratified ocean with a vertical eastern boundary. With an infinitely deep ocean, several initial value problems that illustrate the basic properties of the...
Resource Type:: Article

O Criador:: Martinez, J. A. and Allen, J. S.
Abstract:: The propagation of incident coastal-trapped waves in the Gulf of California is investigated using a hydrostatic primitive equation model. The behavior of idealized incident wave disturbances with different amplitudes and time scales is examined. The incident wave disturbances propagate northward up-gulf along the east side with no significant change. At...
Resource Type:: Article

Hyrax