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Post by karlox on Apr 28, 2013 8:15:00 GMT
Sorry for insisting, but still is not so clear that mm scale in the figure would be a measure valid for Mauna Loa only?
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Post by steve on Apr 28, 2013 10:33:47 GMT
Sorry for insisting, but still is not so clear that mm scale in the figure would be a measure valid for Mauna Loa only? Karlox, The original post says: So it looks like a global figure. The plot title says: So it sounds like it is proportional to the total amount of water in the atmosphere. The obvious problem is that the amount of water should be related to the temperature, not the amount of CO2. So the divergence between the two is not interesting. Beyond that, one would need to know a bit more about the data than what some bloke on a sceptic blog has managed to calculate.
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Post by karlox on Apr 29, 2013 7:37:52 GMT
Sorry for insisting, but still is not so clear that mm scale in the figure would be a measure valid for Mauna Loa only? Karlox, The original post says: So it looks like a global figure. The plot title says: So it sounds like it is proportional to the total amount of water in the atmosphere. The obvious problem is that the amount of water should be related to the temperature, not the amount of CO2. So the divergence between the two is not interesting. Beyond that, one would need to know a bit more about the data than what some bloke on a sceptic blog has managed to calculate. Thanks Steve! So current global Temp flat-trend is coincident with atmosphere water vapor readings starting 1999-2000. more or less...?
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Post by sigurdur on Feb 13, 2014 3:56:08 GMT
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Post by sigurdur on Feb 13, 2014 4:11:22 GMT
www.sciencedirect.com/science/article/pii/S0273117714000945Abstract Water vapor is the most important greenhouse gas. It plays a major role in the dynamics of atmospheric circulation, radiation exchange within the atmosphere, and climate variability. Knowledge of the distribution of water vapor is important for understanding climate change and global warming. In this study, radiosonde data from 1985 to 2012 were used to examine the monthly, interannual, and annual variations and trends of precipitable water vapor (PWV) in central Saudi Arabia in the city of Riyadh (24° 43? N; 46° 40?E, 764 m a.s.l.). The results revealed a clear seasonal cycle of PWV with a maximum during the summer months (June to August) and a minimum during the winter (December to February). This variation follows the mean monthly variation of air temperature. The PWV displays considerable variability at the interannual scale. We could not attribute the variations to the air temperature because no relationship was found between the two variables when the interannual variations were examined. Study of the annual variations of the PWV showed cyclic variations with a period of approximately 10 to 11 years. The two maximums and minimums were in 1996 and 2007 and 1989 and 2000, respectively. The results showed that the annual PWV values are anticorrelated with solar activity, represented by sunspot number, during solar cycles 22 and 23. The physical mechanism underlying this relationship remains unclear. This finding is preliminary, and future investigations are recommended.
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Post by douglavers on Feb 13, 2014 7:37:43 GMT
I have not read the paper, but I think the anti-correlation would be in agreement with Svensmark's theories on cloud formation from cosmic radiation.
Solar peak leads to less cosmic radiation, and hence less cloud.
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