4 ms·
I was mostly talking about the slope of those charts: the line is still going upwards, but more slowly. The seasonal effects (the regular lumps) are large so it
by fanf2 5y ago
I was mostly talking about the slope of those charts: the line is still going upwards, but more slowly. The seasonal effects (the regular lumps) are large so it is hard to tell from the graphs what the long term trend is. My guesses are based on the IERS estimate for what happens after the detailed predictions in Bulletin A, and their charts don’t go that far into the future.
- kelnos 5y agoAhhh, I see. So rotation is still speeding up, but that speeding-up is itself slowing, and your belief is that, before too long, it'll go back to the normal slowing-down state?
- sla29970 5y agoHave a look at the rate of earth rotation over the past 250 years where it is unclear that there is long term acceleration or deceleration. https://www.ucolick.org/~sla/leapsecs/dutc.html https://www.ucolick.org/~sla/leapsecs/dutc.html