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× Welcome to the CPL Meteorology question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.

Excerise GM 3

  • Dobbo
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Dobbo created the topic: Excerise GM 3

Can anybody help please?

Working through GM 3 and Q16. Answer is A. Page 54.
Reads that if the ELR is b/w the DALR and SALR that the atmosphere is Conditionally Stable in the absence of moisture. (DRY) yet back on Page 45 it mentions that when the ELR is b/w the DALR and SALR the atmosphere in Conditionally Unstable. Just a little confused.

Thanks.
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bobtait replied the topic: Excerise GM 3

There's really no difference between the two terms. 'Conditionally stable' means that the atmosphere is stable for dry air, but unstable for saturated air. 'Conditionally unstable' means the atmosphere is unstable for saturated air and stable for dry air. That's just two ways of saying the same thing. The term 'conditionally unstable' is used more frequently nowadays. Thanks for pointing that out, I agree that it could cause some confusion. I'll change the wording in the answer to 'conditionally unstable, for the sake of consistency.
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