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microseism    
n. 微弱的地壳震动

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  • Microseism - Wikipedia
    In seismology, a microseism is defined as a faint earth tremor caused by natural phenomena [1] [2] Sometimes referred to as a "hum", [3] it should not be confused with the anomalous acoustic phenomenon of the same name The term is most commonly used to refer to the dominant background seismic and electromagnetic noise signals on Earth, which
  • Earth Has A Pulse Every 26 Seconds And Scientists Have No Idea Why
    Earth pulses rhythmically every 26 seconds, detected by seismometers The phenomenon, known as a microseism, was first noted in the 1960s Its origin was traced to the Gulf of Guinea off West
  • Insights Into Microseism Sources by Array and Machine Learning . . .
    Microseism is the most continuous and ubiquitous seismic signal on Earth and is mostly generated by the ocean–solid earth interaction On the basis of spectral content, it is possible to distinguish three types of microseism: primary, secondary, and short-period secondary microseism (SPSM)
  • Microseismic - SEG Wiki
    In seismology, a microseism is defined as a faint earth tremor caused by natural phenomena The term is most commonly used to refer to the dominant background seismic noise signal on Earth, which are mostly composed of Rayleigh waves and caused by water waves in the oceans and lakes
  • Journal of Geophysical Research: Solid Earth
    Ocean microseisms are the continuous seismic background oscillations, which result from the interaction between the atmosphere, the ocean waves, and the solid earth Two distinct peaks are globally observed in the microseism spectra, which differ in frequency and amplitude
  • Microseism | seismology | Britannica
    Small ground motions known as microseisms are commonly recorded by seismographs These weak wave motions are not generated by earthquakes, and they complicate accurate recording of the latter However, they are of scientific interest because their form is related to the Earth’s surface structure
  • microseism - Glossary of Meteorology
    A collective term for small motions in the earth that are unrelated to an earthquake and that have a period of 1 0–9 0 s They are caused by a variety of natural and artificial agents
  • MICROSEISM Definition Meaning - Merriam-Webster
    The meaning of MICROSEISM is a feeble rhythmically and persistently recurring earth tremor
  • What generates the microseism? - Earth Science Stack Exchange
    The microseism is ocean waves that couple to the ground to make Rayleigh waves The ocean waves are gravity waves which are dispersive (different frequencies travel at different speeds), and 0 2 Hz (not 20 mHz) is the frequency of the waves that travel at the same speed as storm winds to which they couple
  • Microseisms - ScienceDirect
    Microseisms are continuous seismic disturbances of the earth's surface that constitute the normal background oscillations of seismograms





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