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N_Cook · September 23rd 20, 09:34 PM posted to uk.sci.weather

On 23/09/2020 20:00, wrote:
Interesting that.
I'll look out for it next time after an easterly down the channel.
Quite a small effect compared with North Sea surges but winds are not so strong and MSLP not so low.
How long does the easterly need to blow to have an effect?

Len
Wembury, SW Devon

Because of funnelling/shelving of the Eng channel, W-E surges tend to
get larger Newlyn to Dover and the reverse for E-W surges. Its a matter
of following the situation, tide gauge to tide gauge along the channel,
near enough real time , as NTSLF does not retain hi-,res plots .
IOC resource may have sufficient archives
http://www.ioc-sealevelmonitoring.org/station.php?code=newl2
(aside: I've never seen a newl output , the tsunami filter output, even
in academic papers)
You'd need paid-for admiralty tide data via the ukho site, eg
http://www.ukho.gov.uk/easytide/EasyTide/ShowPrediction.aspx?PortID=0062&PredictionLength=7
But all would be messy compared to some future set of NTSLF plots of
combined tide-gauge and admiralty tide data , so with residuals, with
an east wind situation.
More common is E-W surges from surges in the North Sea, eg
Feb 1953 "Canvey Island" catastrophic flooding from North sea storm, led
to a 5 foot surge being recorded at Southampton, after passing thru the
Dover Strait.

--
Global sea level rise to 2100 from curve-fitted existing altimetry data
http://diverse.4mg.com/slr.htm