"Richard Dixon"
"......why split fronts appear to be more common in the British Isles
than in the Pacific Northwest.........."

Do they mean split as in a kata-front or split as in ana- towards the
trailing end of the cold front and kata- towards the low pressure end of
the front?

Cheers
Richard

No Rich they're refering to a cross section through the frontal zone where
lower theta air aloft overruns the surface frontal zone (in the case study
not far equatorward of the triple point), as outlined by Will.But of course
there is a spectrum, from which Browning extracted his
archetype(s).Different terminologies are around-eg. the term cold front
aloft is used in the States-I think mostly for such fronts east of the
Rockies.

I was wondering if somebody might have an opinion on a reply to the
question, even whether it's a real phenomenon (in the paper a suggestion is
made that the observation maybe due to selection in research strategies ),


--
regards,
David

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