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Microseismic studies involve three main disciplines - oceanography, meteorology and seismology. In her comprehensive treatment of the subject, the author discusses the simultaneous generation of microseisms, oceanic standing waves, infrasound waves, geomagnetic oscillations and the effect of these waves on communication systems. Techniques of locating the sources of excitation are described, together with applications to navigation and wave and weather forecasting.
1. Excitation of Microseisms and Infrasound Vibrations.- 1.1 Formation of Microseisms from Sea Waves.- 1.2 SMS Excitation.- 1.3 Comparison of Existing Theories of SMS Excitation.- 1.4 Theories of SMS and Infrasound Generation by Standing Sea Waves.- 1.5 Hasselman Theory.- 1.6 Nanda Theory of SMS Generation.- 1.7 Primary and Secondary Shore Microseisms.- 2. Sources of Excitation of SMS and IS.- 2.1 Observations on the Caspian Sea. Establishment of Fundamental Relations.- 2.2 Observations of SMS on Lake Baikal.- 2.3 Microseismic Storms on the Okhotsky Sea.- 2.4 Observations of Hydrometeorological Conditions and SMS on Oceans. Recording of Alternating Pressures on the Ocean Bottom.- 2.5 Recording Infrasound Vibrations in the Atmosphere and Microseisms.- 2.6 Observations on SMS in the Shore Zone and on the Ocean Bottom.- 2.7 Experimental Confirmation of the Theory of Standing Waves, MS and Infrasound.- 3. Decomposition of MS Noise into Discrete Sources of MS Excitation.- 3.1 Separation of MS Noise According to Frequency Synchronism.- 3.2 SMS Spectra.- 3.3 Separation of Seismic “Noise” into Components Arriving from Different Sources.- 4. Determination of Power, Energy and Positions of Sources of MS Excitation.- 4.1 Source Position.- 4.2 Source Power and Energy.- 4.3 Determination of Position and Power of MS Sources Using the Power Constant.- 4.4 Shape and Size of MS Sources.- 5. MS as an Indicator of Storm Phenomena, Water Wave Regimes, Infrasound Waves and Geometric Excitations.- 5.1 Phenomena Which Arise with SMS.- 5.2 Formation of Standing Sea Waves and SMS.- 5.3 Influence of the Velocity of a Cyclone Center on MS Formation.- 5.4 Directionality of SMS and IS Radiation by an Array of Standing Sea Waves.- 5.5 Velocity of a Cyclone Center, SMS and Magnetic Storms.- 5.6Perturbations in the Ionosphere and Fluctuations of the Geomagnetic Field.- 5.7 Geomagnetic Storms, Telluric Currents, Geomagnetic Micropulsations and SMS.- 5.8 Variations of Global MS Vibrations.- 5.9 Propagation of Radiowaves and MS Storms on Oceans.- 6. MS Vibrations in Engineering Seismology.- 6.1 Use of MS in Estimating the Seismic Response of Soils. Electrodynamic Analogy.- 6.2 High Frequency MS.- 6.2.1 Spontaneous MS.- 6.2.2 Mechanical Vibrators.- 6.3 Low Frequency MS.- 6.4 Further Possible Applications of MS.- References.