[time-nuts] Q/noise of Earth as an oscillator
hmurray at megapathdsl.net
Sat Jul 23 20:59:12 EDT 2016
tvb at LeapSecond.com said:
> Earth is a very noisy, wandering, drifting, incredibly-expensive-to-measure,
> low-precision (though high-Q) clock.
What is the Q of the Earth? It might be on one of your web pages, but I
don't remember seeing it. Google found a few mentions, but I didn't find a
I did find an interesting list of damping mechanisms in a geology book.
Geology-nuts are as nutty as time-nuts. Many were discussing damping of
seismic waves rather than rotation.
I've seen mention that the rotation rate of the Earth changed by a few
microseconds per day as a result of the 2011 earthquake in Japan. Does that
show up in any data? Your recent graph doesn't go back that far and it's got
a full scale of 2000 microseconds so a few is going to be hard to see.
These are my opinions. I hate spam.
More information about the time-nuts