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Old 11.02.2016, 13:13
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Re: Escaping Zurichsee fog

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Mine was a relative difference.

You've given an absolute difference so you must know the temperature at a given altitude in China or Nepal near Mt.Everest

knowing lapse rates and so on is quite useful for working out height of cloudbase for gliding.
Fair enough. Kathmandu is at 1,400m, so when it was -9 there in January three years ago, it must have been -59 at the summit of Mt Everest. Clearly, your scientifically rigorous method is pretty much as accurate as mine.
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