Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 98
Book Description
Numerical Investigation of Barotropic Development of Eddies [with Bibliography
Author: A Numerical Investigation of the Barotropic Development of Eddies
Author: Manfred M. HollPublisher:
ISBN:
Category : Atmospheric turbulence
Languages : en
Pages : 118
Book Description
A Numerical Investigation of the Barotropic Development of Eddies
Author: Manfred M. HollPublisher:
ISBN:
Category :
Languages : en
Pages : 110
Book Description
This paper deals with the formation of eddies in a straight parallel or zonal flow and with the subsequent modification of the flow profile. The fluid is taken to be homogeneous and inviscid. Numerical analogues for the physical equations are developed in detail and are analyzed. The work begins with the linear theory of dynamic stability. Numerical analogues are developed to determine the evolution of perturbations. sinusoidal along the flow, which are initially prescribed with arbitrary wave number, amplitude, and tilt variations, and which are superimposed on arbitrary flows. These flows are straight-parallel and are unbounded, or are half bounded or bounded by plane surfaces. Integrations are carried out for an unbounded flow profile with an inflection point. Unstable perturbations are isolated and the unstable spectrum is determined. A numerical analogue for the finite amplitude problem, by which one can study the transfer of energy from the mean flow to the eddy then developed. The most unstable perturbation linearly determined, is taken as a small but finite disturbance. The integration is carried out and reveals the continued growth of the eddy and the modification of the mean flow. This method of investigation with added lapse rate and compressibility is discussed as an approach to turbulence, and to the modification of wind shear and lapse rate by the developed eddies. The general problem of numerical analogues for integrations requiring finite time-steps is also briefly discussed.
Bibliography of AFCRL In-house Technical Reports
Author: Air Force Cambridge Research Laboratories (U.S.)Publisher:
ISBN:
Category : Atmosphere, Upper
Languages : en
Pages : 88
Book Description
The bibliography of AFCRL in-house technical reports lists all reports issued in the existing series. In addition, appendices list reports issued from 1962 to 1964 when series designations were not used, and reports issued in now-defunct series.
Monthly Catalog of United States Government Publications
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1714
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Bibliography of Scientific and Industrial Reports
Author: Numerical Methods in Atmospheric and Oceanic Modelling
Author: Canadian Meteorological and Oceanographic SocietyPublisher: NRC Research Press
ISBN: 9780969841449
Category : Science
Languages : en
Pages : 654
Book Description
A collection of 27 invited refereed papers by scientists in the field of numerical modelling, this volume provides a comprehensive referecne for students and researchers of numerical weather prediction, climate simulation, dynamic meterology and ocean modelling."
Geophysical Research Papers
Author: A Numerical Study of Seasonal Wind Forcing Effects on the California Current System
Author: Ross P. MitchellPublisher:
ISBN:
Category : California Current
Languages : en
Pages : 136
Book Description
A high-resolution, multi-level, primitive equation ocean model is used to examine the response of an idealized, flat-bottomed, eastern boundary oceanic regime on a beta-plane to both steady and seasonally-varying climatological wind forcing. The focus of the study is the California Current System along the coastal region, from 35 deg N to 45 deg N, off the Western United States. With steady equatorward wind forcing, a surface equatorward current and poleward undercurrent develop. Eddies form around days 60 and 7 with initial development in the northern region of the domain. The strong meandering current continues to grow throughout the 360 days of model time and can produce eddies that have wavelengths up to 200 km and can propagate at least -200 km offshore. When the alongshore component of the temporally averaged seasonally varying climatological wind forcing is used, there is a weak poleward undercurrent and equatorward surface current. There is weak upwelling and very little eddy activity with the eddies only propagating to -100 km offshore. When alongshore component of the time-dependent wind forcing with spatial variability in latitude is used, a surface equatorward jet, poleward undercurrent and eddies are generated. The eddies form throughout the domain in this experiment due to a competition between the 0-plan effect and the continuous and stronger equatorward wind forcing in the southern portion of the domain. The eddies in this experiment propagate at least -150 km from shore.
Author: