is this a map of prevailing pressure differentials due to standing waves in the jet stream (ripples in the bed)?? or???

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@meetar artifacts of the analysis? I would think jet-related waves would be more N-S.

@sgillies right?? maybe some kind of transverse wave related to js-driven convection?

@meetar @sgillies I’ll bet $1 it’s an artifact of the zone borders. If every zone moves by half a zone width, you get stripes half a zone wide. They show up in the east because the climate is more spatially consistent there.

@vruba @sgillies okay that’s obviously it, but it’s still angled to ~align with the jet stream, which is professionally annoying.

@vruba @sgillies actually that doesn’t make any sense either as the jet stream wiggles all around. i’m blaming the dog and going back to bed

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@meetar @sgillies Yeah but long-term averages tho. Cf. scientificamerican.com/article (which I think slightly overstates the case – I gather this is still pretty debated).

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@vruba “at last, we’ve succeeded in simulating the north atlantic — in a medical sense”

@vruba @meetar For a second I was imagining a tiny little raisin in a hospital bed.

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