I was just wondering how much the vapour pressure has changed due to climate change. Because with changing temperatures, the vapour pressure also changes; this is described by the Clausius-Clapeyron equation. Does anyone have a suitable paper on how this has changed in the Northern hemisphere?
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Do you mean relative humidity ? – blacksmith37 Jul 21 '22 at 15:34
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1Relative humidity is going to be significantly different than vapor pressure as a question... relative humidity changes based on air temperature without any change in actual underlying atmospheric moisture amounts. – JeopardyTempest Jul 21 '22 at 19:54
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2Does this answer your question? Could Global Climate Change increase the average moisture in the air? – JeopardyTempest Jul 21 '22 at 19:56
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4I don't think it's a duplicate. The linked question asks about potential changes in the future, thus an answer would rely on models, while this question asks about changes in the (recent) past, thus an answer would rely on actual measures. – Jean-Marie Prival Jul 22 '22 at 09:11
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1@Jean-MariePrival good point – JeopardyTempest Aug 02 '22 at 19:15
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You might find the global desertification chapter of my book interesting. It discusses water vapor and where the recent increase (see NASA data) might be coming from. – Denis de Bernardy Nov 16 '22 at 04:07