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Author : A. Gary Beard
Release : 1999
Genre : Atmospheric tides
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Non-linear Interactions Between Tides and Planetary Waves Resulting in Periodic Tidal Variability by : A. Gary Beard
Download or read book Non-linear Interactions Between Tides and Planetary Waves Resulting in Periodic Tidal Variability written by A. Gary Beard. This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. G. Mayr
Release : 2013-08
Genre :
Kind : eBook
Book Rating : 624/5 ( reviews)
Book Synopsis Non-Migrating Diurnal Tides Generated with Planetary Waves in the Mesosphere by : H. G. Mayr
Download or read book Non-Migrating Diurnal Tides Generated with Planetary Waves in the Mesosphere written by H. G. Mayr. This book was released on 2013-08. Available in PDF, EPUB and Kindle. Book excerpt: We report here the results from a modeling study with our Numerical Spectral Model (NSM) that extends from the ground into thermosphere. The NSM incorporates Hines Doppler Spread Parameterization for small-scale gravity waves (GWs) and describes the major dynamical features of the atmosphere, including the wave driven equatorial oscillations (QBO and SAO), and the seasonal variations of tides and planetary waves. Accounting solely for the solar migrating tidal excitation sources, the NSM generates through dynamical interactions also non-migrating tides in the mesosphere that have amplitudes comparable to those observed. The model produces the diurnal (and semidiurnal) oscillations of the zonal mean (m = 0), and eastward and westward propagating tides for zonal wave numbers m = 1 to 4. To identify the mechanism of excitation for these tides, a numerical experiment is performed. The NSM is run without the heat source for the zonal-mean circulation and temperature variation, and the amplitudes of the resulting nonmigrating tides are then negligibly small. This leads to the conclusion that the planetary waves, which normally are excited in the NSM by instabilities but are suppressed in this case, generate the nonmigrating tides through nonlinear interactions with the migrating tides.
Author : Wenbin Wang
Release : 2021-04-14
Genre : Science
Kind : eBook
Book Rating : 568/5 ( reviews)
Book Synopsis Space Physics and Aeronomy, Upper Atmosphere Dynamics and Energetics by : Wenbin Wang
Download or read book Space Physics and Aeronomy, Upper Atmosphere Dynamics and Energetics written by Wenbin Wang. This book was released on 2021-04-14. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the structure and variability of the upper atmosphere Earth's upper atmosphere is an open system that is strongly influenced by energy and momentum inputs from both above and below. New observation and modeing techniques have provided insights into dynamics, energetics, and chemical processes in the upper atmosphere. Upper Atmosphere Dynamics and Energetics presents an overview of key research advances in upper atmospheric physics, and measurement and modeling techniques, along with remaining challenges for understanding the state and variability of the upper atmospheric system. Volume highlights include: Insights into the interconnections between different areas of upper atmospheric science Appreciation of the dynamics and complexity of the global upper atmospheric system Techniques for observing and measuring the upper atmosphere Responses of the upper atmosphere to external drivers The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about the Space Physics and Aeronomy collection in this Q&A with the Editors in Chief
Author : J. D. Huba
Release : 2014-03-17
Genre : Science
Kind : eBook
Book Rating : 452/5 ( reviews)
Book Synopsis Modeling the Ionosphere-Thermosphere by : J. D. Huba
Download or read book Modeling the Ionosphere-Thermosphere written by J. D. Huba. This book was released on 2014-03-17. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 201. Modeling the Ionosphere-Thermosphere System brings together for the first time a detailed description of the physics of the IT system in conjunction with numerical techniques to solve the complex system of equations that describe the system, as well as issues of current interest. Volume highlights include discussions of: Physics of the ionosphere and thermosphere IT system, and the numerical methods to solve the basic equations of the IT system The physics and numerical methods to determine the global electrodynamics of the IT system The response of the IT system to forcings from below (i.e., the lower atmosphere) and from above (i.e., the magnetosphere) The physics and numerical methods to model ionospheric irregularities Data assimilation techniques, comparison of model results to data, climate variability studies, and applications to space weather Providing a clear description of the physics of this system in several tutorial-like articles, Modeling the Ionosphere-Thermosphere System is of value to the upper atmosphere science community in general. Chapters describing details of the numerical methods used to solve the equations that describe the IT system make the volume useful to both active researchers in the field and students.
Author :
Release : 2002
Genre : Astrophysics
Kind : eBook
Book Rating : /5 ( reviews)
Book Synopsis Annales Geophysicae by :
Download or read book Annales Geophysicae written by . This book was released on 2002. Available in PDF, EPUB and Kindle. Book excerpt:
