Going with the flow.
Friday, 28. August 2009, 11:25:40
And icecream castles in the air
...But clouds got in my way
I read up on clouds the other day and found out there are just two types. The warmer than their surroundings ones and the colder than their surroundings ones.
That makes it a lot easier to understand them than the modern categories.
Alt- stuff is falling flat and fog-like
Cumu- stuff is bubbles going up.
I'd always ignored looking at the different names for them s I could never find out just which heights were which and anyway how are you supposed to tell how high something is? It's not as if there are colour codes or measuing lines.
What really got to me was that the formation of our weather taking it from a stable situation in the centre of the globe:
The International Convergencew Zone
isn't doing anything that makes sence.
Warm, incredibly warm air bursts up throughout a tropical day and when it reaches a certain height water comes out of it as cloud.
But instead of going up indefinitely it hits the top of the layer we live in and rolls over back down as low pressure heading Poleward.
OK. I can live with that. I'm not too happy with the role Coriolis plays but hey, these are expert and what do I know.
I know what Newton'ts Laws apply to.
These winds from the Equator arrive as packets or parcels that behave like solids. I don't know if you have ever tried to push water uphill? (You use a broom and keep sweeping and if the slope is steep enough you hit it forwards then play catch up.)
Try that with gas, if you can imagine a scenario that could happen in. Gas compresses. It isn't as malleable as a liquid, it doesn't fall back waiting for the next brush stroke, it doesn't even go forewards with the first.
What happens is that there is no real explanation for the way that gas suffuses up from the Equator once it has reached the top of the Troposphere. Somerthing keeps it together but it isn't any force I ever heard of.
Which is what I found fascinating. (That and the fact I had so assiduously neglected finding out anything about clouds I didn't know anything about clouds.)
I don't feel quite the schmuck I must be but at least I haven't got it on the Enc B for all to see. How come other experts haven't mentioned it before?
Or have they?















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