منابع مشابه
CONTINUOUS FREE OSCILLATIONS: Atmosphere-Solid Earth Coupling
■ Abstract In 1997, after almost forty years since the initial attempt by Benioff et al (1959), continuous free oscillations of the Earth were discovered. Spheroidal fundamental modes between 2 and 7 millihertz are excited continuously with acceleration amplitudes of about 0.3–0.5 nanogals. The signal is now commonly found in virtually all data recorded by STS-1 type broadband seismometers at q...
متن کاملAn Earth Model Based on Free Oscillations and Body Waves
Several recent inversion studies have clearly indicated the lack of resolving power of the normal mode data set and the possible trade-offs among the various parameters. These studies have also shown that the final model is as dependent on the starting model as on the data set. It is therefore important to incorporate body wave data into any inversion scheme not only to gain resolution but also...
متن کاملEarth Structure from Free Oscillations and Travel Times*
An extensive set of reliable gross Earth data has been inverted to obtain a new estimate of the radial variations of seismic velocities and density in the Earth. The basic data set includes the observed mass and moment of inertia, the average periods of free oscillation (taken mainly from the Dziewonski-Gilbert study), and five new sets of differential travel-time data. The differential travel-...
متن کاملP3: Isolation of Neurosphere-Like Bodies from Adult Human Amygdala
لطفاً به چکیده انگلیسی مراجعه شود.
متن کاملSpectrometry of the Earth using Neutrino Oscillations
The unknown constituents of the interior of our home planet have provoked the human imagination and driven scientific exploration. We herein demonstrate that large neutrino detectors could be used in the near future to significantly improve our understanding of the Earth's inner chemical composition. Neutrinos, which are naturally produced in the atmosphere, traverse the Earth and undergo oscil...
متن کاملNumerical and experimental investigation of shear-driven inertial oscillations in an Earth-like geometry
Inertial waves and small-scale turbulence are inevitable consequences of rapid rotation and low viscosity in the Earth’s core. We use numerical simulations and experiments to investigate the influence of waves and turbulence on the large-scale flow of an electrically conducting fluid in a spherical annulus. The large-scale flow is driven by shear between the inner-core and outer-core boundaries...
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عنوان ژورنال:
پژوهش فیزیک ایرانجلد ۱، شماره ۱، صفحات ۴۹-۵۳
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