I have been watching the Atlantic hurricanes do the tango this week without much to report. But checking October 2nd I can see a modest microbarom peak
Normally there is a trace of energy at 0.2 Hz. Here it is some 15 dB above normal.
Hurricane Imelda (yellow buzz saw) - 90 MPH and 950 miles ESE (I am near Washington, DC)
Ken
Reference
In acoustics, microbaroms, also known as the "voice of the sea", are a class of atmospheric infrasonic waves generated in marine storms by a non-linear interaction of ocean surface waves with the atmosphere. They typically have narrow-band, nearly sinusoidal waveforms with amplitudes up to a few microbars, and wave periods near 5 seconds (0.2 hertz). Due to low atmospheric absorption at these low frequencies, microbaroms can propagate thousands of kilometers in the The reason for the discovery o...
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Another very nice example of microbarom, kpjamro (and welcome back to the community!)
I find it amazing that it was detectable (even faint) at about 1000 miles away from the storm.
Thank you for sharing it with all of us.
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