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Sunday, July 26, 2020 | History

2 edition of Dynamics of mesoscale motion in the California current found in the catalog.

Dynamics of mesoscale motion in the California current

R. Kipp Shearman

Dynamics of mesoscale motion in the California current

by R. Kipp Shearman

  • 298 Want to read
  • 18 Currently reading

Published .
Written in English

    Subjects:
  • Convection (Oceanography) -- California Current.,
  • Mesometeorology.

  • Edition Notes

    Statementby R. Kipp Shearman.
    The Physical Object
    Pagination202 leaves, bound :
    Number of Pages202
    ID Numbers
    Open LibraryOL15552023M

    This extraordinary mesoscale convective system (MCS), over the Gulf of California, approached the Baja California Peninsula, Mexico, on J with tropical‐storm‐force winds that resulted in.   Open cells have downward motion and clear skies at cell center, with up motion and clouds in the periphery of the hexagon, while closed cells have the opposite circulation. Convective marine boundary layers, which contain MCC, have depths of about 1 to 2 kin, with a capping inversion layer of m.

    Scripps Institution of Oceanography, La Jolla, California (Manuscript received 12 May , in final form 29 September ) ABSTRACT The summertime California Current System (CCS) is characterized by energetic mesoscale eddies, whose sea surface temperature (SST) and surface current can significantly modify the wind stress and Ekman pumping.   A snapshot of sea surface temperature (SST) within the California Current System shows both mesoscale eddies and associated submesoscale fronts, filaments, instabilities, and vortices (Fig. 2). A front is defined as a sharp horizontal gradient in density with an extensive central axis in the perpendicular direction (i.e., a line along the surface).

    The dynamics of these striations is not understood yet. Their zonal orientation and characteristics along with their ubiquity lead Nakano and Hasumi (), Galperin et al. (), and Richards et al. () to conclusions on the relevance of the “Rhines mechanism.” This mechanism (Rhines, ) is based on the theory of two-dimensional turbulence, whose free development induces zonal jets. Current fuel cell proton exchange membranes rely on a random network of conducting hydrophilic domains to transport protons across the membrane. Despite extensive investigation, details of the structure of the hydrophilic domains in these membranes remain unresolved. In this study a dynamic self-consistent mean field theory has been applied to obtain the morphologies of hydrated.


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Dynamics of mesoscale motion in the California current by R. Kipp Shearman Download PDF EPUB FB2

Estimating the full three-dimensional circulation in the ocean is complicated by the difficulty in measuring the vertical velocity w. Horizontal velocities in the CCS are vigorous (– m s −1) and highly geostrophic (Kosro and Huyer ).Thus, horizontal velocities are relatively simple to measure, either from density profiles and the thermal wind relation or through the use of a Cited by: Dynamics of mesoscale motion in the California currentAuthor: R.

Kipp Shearman. The Programme Ocean Multidisciplinaire Meso Echelle (POMME) program was conducted in –01 to study the role of mesoscale eddies in the formation and subduction of 11°–13°C mode waters in the northeast Atlantic Ocean (Mémery et al.

).Third in a series of four cruises, POMME 2 was conducted from the end of March to the beginning of Maywith two ships, the RV L’Atalante Cited by: [1] This is the second paper investigating the three‐dimensional dynamics from two consecutive, quasi‐synoptic surveys of a shallow front in the California Current System.

The mesoscale vertical velocity (w) is obtained by solving a generalized ω equation using density and horizontal velocity nonlinear dynamics emerge from the ageostrophic forcing terms for w in an Cited by: Submesoscale dynamics lead to more intense vertical motion and the.

The transitions from submesoscale to mesoscale dynamics, which beneath the euphotic zone in the California Current. The use of this approximation has allowed the understanding of the structure and dynamics of mesoscale structures in the upper ocean [Dewey et al., ; Lindstrom and Watts, ; Gomis et al., ], as well as proposing empirical models that relate the magnitude of vertical motion to the slope of the size (abundance spectrum) of.

Mesoscale Dynamics By Yuh-Lang Lin [Lin, Y.-L., Mesoscale Dynamics. Cambridge University Press.] To appear. Chapter 1 Overview Introduction Mesoscale dynamics uses a dynamical approach for the study of atmospheric phenomena with a horizontal scale ranging approximately from 2 to km.

These. Shearman, R.K. and J.A. Barth, A description of the kinematics and dynamics of mesoscale motion in the California Current system through observation and modeling. Liege Colloquium on Hydrodynamic, May   In Capet et al. (, hereinafter Part I), a suite of computational simulations for an idealized subtropical, eastern boundary, upwelling current system [referred to as the idealized California Current (ICC)] is analyzed for the emergent submesoscale flows that arise once the horizontal grid resolution increases to O(1) km.

The high-resolution solutions (ICC0 at km and ICC1 at km. A defining characteristic of the submesoscale transition is the shoaling of the slope for horizontal wavenumber spectra in the upper ocean in the wavenumber range greater than the mesoscale spectral peak when the grid resolution becomes finer than O (10) km (section of Part I).One-dimensional (1D) spectra for spatial fluctuations in T, ρ, and u h (with the subscript h denoting a horizontal.

Biogeochemical cycles associated with mesoscale eddies in the South China Sea (SCS) were investigated. The study was based on a coupled physical–biogeochemical Pacific Ocean model (Regional Ocean Model System–Carbon, Silicate, and Nitrogen Ecosystem, ROMS-CoSiNE) simulation for the period from to A total of mesoscale eddies with lifetime longer than 30 days.

Eddies and other mesoscale activity have been shown to play a critical role on physical and biological processes in the California Current Sys. ABSTRACT: Zooplankton in the central jet of the California Current and an adjacent mesoscale cyclonic eddy centered at °W, °N were studied in early July,using a SeaSoar-mounted Optical Plankton Counter.

Within 3 d after the 2 d survey of these mesoscale features we completed a MOCNESS transect across the study area.

dynamics of motion. In summary, synoptic (and up) scale ows are I quasi-two-dimensional (because w motion) I Coriolis force is a dominant term in the equation of motion and it is in rough balance with the PGF I the ow is quasi-geostrophic 37/ Mesoscale meteorological models commonly applied for wind energy resource estimation are essentially numerical weather prediction models that discretize the fluid domain and solve primitive equations (i.e.

fundamental equations of atmospheric dynamics). 27 These models describe the time evolution of the atmosphere in three dimensions in terms of temperature, pressure, humidity, etc. The sub-mesoscale dynamics associated with upwelling system have been investigated by [20,21,22] for the California Current System, and by for the North-West African upwelling current.

This paper is dedicated to the sub-mesoscale frontal dynamics occurring in the Omani Coastal Current near the surface and at intermediate depths. From January 9 to 17,detailed observations of the horizontal and vertical structure beneath one of the quasi-permanent semi-stationary mesoscale offshore eddy signatures in the California Current System (CCS) discussed by Bernstein, Breaker and Whritner (), Burkov and Pavlova (), and Simpson () were made.

Problems of the Mesoscale • Synoptic observation systems have horizontal resolutions of km and 1 hour at the surface and km and 12 hours aloft and are clearly inadequate to capture all but the upper end of the meso.

• The dynamics of mesoscale disturbances contain important non-balanced or transient features that propagate rapidly. The sub-mesoscale dynamics associated with upwelling system have been investigated by [20] [21] [22] for the California Current System, and by [23] for the North-West African upwelling current.

similar to the California Current, a submesoscale transition occurs in the eddy variability as the horizontal grid scale is reduced to O(1) km. This first paper (in a series of three) describes the transition in terms of the emergent flow structure and the associated time-averaged eddy fluxes.

In addition to the mesoscale. The oceanic mesoscale, 10– km, is the equivalent of the atmospheric storm scale. It is generally considered to be the most energetic scale, and it.

The cascade of oceanic mesoscale energy is accomplished by highly nonlinear turbulent fluid motion. Because this turbulent motion is under a quasigeostrophic balance, it is called quasigeostrophic (QG) turbulence (Charney ; Hua and Haidvogel ; McWilliams ).In the absence of forcing and boundary effects in the interior of the ocean and atmosphere, some interesting .The current release of cellPAINT is built around a specific biomedical application: mesoscale depiction of HIV surrounded by blood plasma and interacting with a simplified white blood cell surface.

HIV and its interaction with human cells has been a topic of extensive research, so a large body of information is available (Figure 6).