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  • 2010-2014  (1)
  • 2005-2009  (3)
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  • 1
    Monograph available for loan
    Monograph available for loan
    Atmospheric dynamics (2011)
    Cambridge [u.a.] : Cambridge Univ. Press
    Details Availability
    Call number: AWI A6-12-0035
    Description / Table of Contents: Contents: 1. Fundamental concepts and physical laws. - 2. Basic approximations and elementary flows. - 3. Vorticity and potential vorticity dynamics. - 4. Friction and boundary layers. - 5. Fundamentals of wave dynamics. - 6. Quasi-geostrophic theory and two-layer model. - 7. Dynamic adjustment. - 8. Instability theories. - 9. Stationary planetary wave dynamics. - 10. Wave-mean flow interaction. - 11. Equilibration dynamics of baroclinic waves. - 12. Nongeostrophic dynamics.
    Description / Table of Contents: Atmospheric dynamics is a core component of all atmospheric science curricula. It is concerned with how and why different classes of geophysical disturbances form, what dictates their structure and movement, how the Earth's uneven surface impacts with them, how they evolve to mature stage, how they interact with the background flow, how they decay and how they collectively constrain the general circulation of the atmosphere. Mankin Mak's new textbook provides a self-contained course on atmospheric dynamics. The first half of the book is suitable for undergraduates, and develops the physical, dynamical and mathematical concepts at the fundamental level. The second half of the book is aimed at more advanced students who are already familiar with the basics. The concepts have been developed from many years of the author's teaching at the University of Illinois. The discussions are supplemented with schematics, weather maps and statistical plots of the atmospheric gerneral circulation. Students often find the connection between theoretical dynamics and atmospheric observation somewhat tenuous, and this book demonstrates strong connection between the key dynamics and real observations in the atmosphere, with many illustrative analyses in the simplest possible model settings. Physical reasoning is shown to be even more crucial than mathematical skill in tackling dynamical problems. This textbook is an invaluable asset for courses in atmospheric dynamics for undergraduates as well as for graduate studentes and researchers in atmospheric science, ocean science, weather forecasting, environmental science and applied mathematics. Some background in mathematics and physics is assumed.
    Type of Medium: Monograph available for loan
    Pages: XIV, 486 S. : Ill., graph. Darst., Kt.
    Edition: 1. publ.
    ISBN: 9780521195737
    Branch Library: AWI Library
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  • 2
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    Diagnostic and dynamical analyses of two outstanding aspects of storm tracks (2007)
    Elsevier
    Details
    Publication Date: 2007-04-01
    Print ISSN: 0377-0265
    Electronic ISSN: 1872-6879
    Topics: Geography , Geosciences , Physics
    Published by Elsevier
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  • 3
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    Nature of the Differences in the Intraseasonal Variability of the Pacific and Atlantic Storm Tracks: A Diagnostic Study (2006)
    American Meteorological Society
    Details
    Publication Date: 2006-10-01
    Description: On the basis of an intraseasonal variability index of storm track evaluated for 40 winters (1963–64 through 2003–04) of NCEP–NCAR reanalysis data, it is found that well-defined midwinter minimum [MWMIN; (midwinter maximum MWMAX)] occurs in 21 (8) winters over the North Pacific. In contrast, MWMIN (MWMAX) occurs in 4 (25) of the 40 winters over the North Atlantic. The power spectrum of such an index for the Pacific has a broad peak between 5 and 10 yr, whereas the spectrum of the index for the Atlantic has comparable power in two spectral bands: 2–2.8 and 3.5–8 yr. Over the North Pacific, the increase in the zonal asymmetry of the background baroclinicity as well as in the corresponding horizontal deformation of the time-mean jet from early/late winter to midwinter is distinctly larger in an MWMIN winter. Associated with these changes, there is a distinctly stronger barotropic damping rate in the January of an MWMIN winter. The increase in the net conversion rate of eddy kinetic energy from early/late winter to midwinter is much larger in an MWMAX winter than that in an MWMIN winter. Even though there is a modest increase in the barotropic damping from early/late winter to midwinter over the North Atlantic, it is overcompensated by a larger increase in the baroclinic conversion rate. That would result in MWMAX. These results are empirical evidences in support of a hypothesis that a significant enhancement of the barotropic damping relative to the baroclinic growth from early/late winter to midwinter is a major contributing factor to MWMIN of the Pacific storm track.
    Print ISSN: 0022-4928
    Electronic ISSN: 1520-0469
    Topics: Geography , Geosciences , Physics
    Published by American Meteorological Society
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  • 4
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    An Idealized Model Study Relevant to the Dynamics of the Midwinter Minimum of the Pacific Storm Track (2005)
    American Meteorological Society
    Details
    Publication Date: 2005-04-01
    Description: The synoptic variability of a two-level quasigeostrophic flow in response to plausible changes in the forcing of a localized baroclinic jet is investigated in the context of the midwinter minimum of the Pacific storm track (MWM). The changes in the model forcing are introduced in terms of a reference potential vorticity field that is associated with plausible changes in the global baroclinicity, zonal variation of the baroclinicity, and horizontal deformation over the Pacific from early winter to midwinter conditions. It is found that the modal instability growth rate of perturbation in such a localized jet is significantly reduced in spite of an increase in the local baroclinicity. The dynamical nature of such an effect can be interpreted as a generalized barotropic governor effect on localized baroclinic instability. The existence of three instability regimes is established on the basis of energetics characteristics. The intensity of the nonlinear model storm track is reduced by about 30% in response to a change in the forcing condition from early to midwinter. The characteristics of the linear model storm track and nonlinear model storm track are compared. The overall results support a hypothesis that MWM could stem from a sufficiently large increase in the stabilizing influence of the local barotropic process in spite of a simultaneous increase in its local baroclinicity in the Pacific jet from early to midwinter.
    Print ISSN: 0022-4928
    Electronic ISSN: 1520-0469
    Topics: Geography , Geosciences , Physics
    Published by American Meteorological Society
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