[time-nuts] GPS/UTC time

[Jim Lux]

On 7/4/15 10:25 PM, Brian Inglis wrote:

> Thanks for the good and interesting refs.
> One of the interesting points was that normal variations are multiples
> of those caused by earthquakes, and annual variations are up to 1ms and 1m.
> Another was that the jet streams produce large short term variations
> caused by temperature differences.
> Will this always turn up as an issue with all oscillators? ;^>
>
There's a fair amount of noise (some looks periodic) in that plot from 
USNO of day length

So, what *is* the ADEV of the earth's rotation?