7 ms·

Thanks, you're probably right that it's not only depth being a factor in this. I think we both over-simplified as these are logarithmic ratios, not linear. On

Thanks, you're probably right that it's not only depth being a factor in this. I think we both over-simplified as these are logarithmic ratios, not linear. On to speculation: the interaction between the waves and the ocean floor may be hitting one, of many, of these magic numbers in this scenario. It's possible two periods of waves interact to cause this 26s interval, since waves are always grouped. Also, consider how the waves may have combinatorial feedback loops due to stokes drift (doppler effect) in deeper water. It's frustrating the latest research on microeism seems to be from the 50's. There's very few resources describing what happens to waves as they move from shallow to deeper water.

pa7x1 6y ago
To be fair, that kind of back of the envelope analysis shows that with our current knowledge we cannot assign this phenomenon to your hypothesis. But maybe that's precisely why the phenomenon remains unexplained because we have to think a bit outside the box. Fluid dynamics is complicated (Navier-Stokes still has a 1 million prize attached to it), surface wave propagation is complicated but when you include the effects of the seabed it's even more complicated. A lot of non-linear behavior pops out which always brings very nasty math. I'm more on the side that this is not the explanation but I wouldn't bet too much on it.