[LEAPSECS] speeding up again?

[Tom Van Baak]

Steve,

 > We can probably put a lot of the blame onto El Niño

That sounds plausible but I'm suspicious of quick and simple explanations.

You work at/for a university, near the coast, yes? Can you ping some of 
your climatology / oceanography colleagues and get data going back as 
far as they have it? I think it would be useful to see what the 
correlation coefficient actually is.

Attached is an LOD plot I made a while ago. A random web google link 
says "The five strongest El Niño events since 1950 were in the winters 
of 1957-58, 1965-66, 1972-73, 1982-83 and 1997-98". To my eyeball I just 
don't see that in the historical LOD plot.

/tvb


On 5/26/2023 9:09 AM, Steve Allen wrote:
> On Mon 2023-05-22T16:44:30+0200 Tony Finch hath writ:
>> The prospect of a negative leap second is receding. The longer-term
>> projected length of day from Bulletin A has been increasing towards 24h
>> in recent months.
> We can probably put a lot of the blame onto El Niño
>
> --
> Steve Allen                    <sla at ucolick.org>              WGS-84 (GPS)
> UCO/Lick Observatory--ISB 260  Natural Sciences II, Room 165  Lat  +36.99855
> 1156 High Street               Voice: +1 831 459 3046         Lng -122.06015
> Santa Cruz, CA 95064           https://www.ucolick.org/~sla/  Hgt +250 m

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