Amateur Radio Public Seismic Network
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A New Look at an Old Tool:
the Cumulative Spectral Power of Fast-Fourier Transform Analysis
Sheng-Chiang Lee and Randall D. Peters
Physics Department, Mercer University, Macon, GA 31207
http://www.flyingsnail.com/AmateurRadio/VolksMeter-FFT-CSP.html
February
Power Spectral Density February Averages Macon, GA (blue) - Cobb, CA (red)
February Comparison N/S CSP Averages - Macon, GA - Cobb, CA - Redwood City, CA
Average Feb CSP Cobb Curves VolksMeter N-S Channel - large image
CSP, 1st 10 days - February 2009, E-W VolksMeter channel, Cobb [Mountain], CA - large image
Click for large image - February 22-25, 2009
All VolksMeter Averaging Images provided by Randall Peters
The above video is a nice depiction of how the eigenmodes of a plate change with increasing forcing frequency.
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Current extent and position of auroral oval at each pole. Click image to go to page.
If anyone owning a PC, Macbook, or Macbook Pro is interested in Earthquakes and would like a FREE way to monitor them, check out the current progress log page provided by ARPSN (Amateur Radio Public Seismic Network) for a guideline.