What is the Earth's natural resonant frequency?

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SUMMARY

The Earth's natural resonant frequency encompasses various modes, primarily derived from geophysical and earthquake data. Notably, there exists a low-frequency resonant mode occurring approximately every 54 minutes, which was explored by Joseph Weber and Robert Forward for gravitational wave detection using sensitive gravimeters. This research predates their development of resonant aluminum bar detectors. The discussion also references Schumann resonances, which are well-documented electromagnetic resonances of the Earth.

PREREQUISITES
  • Understanding of geophysical data analysis
  • Familiarity with gravitational wave detection techniques
  • Knowledge of resonant frequency concepts
  • Basic comprehension of earthquake data interpretation
NEXT STEPS
  • Research Schumann resonances and their implications in atmospheric science
  • Explore gravitational wave detection methods using gravimeters
  • Study the mathematical modeling of Earth's natural resonant modes
  • Investigate the historical context of Joseph Weber's and Robert Forward's contributions to physics
USEFUL FOR

Geophysicists, physicists interested in gravitational waves, researchers in atmospheric science, and anyone studying the Earth's resonant frequencies.

mapa
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(Is there one?) What is the Earth's natural resonant frequency?
 
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mapa said:
(Is there one?) What is the Earth's natural resonant frequency?

Hmm..
I will assume you are not referring to the Electromagnetic resonance, usually referred to a Schumann resonances (in which there is an abundance of available info).

If you are referring to the Earth's natural mass resonant modes, I believe there are several, (which are predicted and derived mostly from geophysical and earthquake data).

Not commonly known is the fact that there is a low frequency Earth resonant mode of about one every 54 minutes,... that Joseph Weber (and Robert Forward) tried to use in Gravitational wave detection using very sensitive gravimeters (long long time ago in a distant land ;))...before deciding to build the resonant (aluminum) bar detectors.

Creator
 
mapa said:
(Is there one?) What is the Earth's natural resonant frequency?

I just found a web page called http://icb.u-bourgogne.fr/nano/MANAPI/saviot/terre/index.en.html"
 
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Thank You.
 

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