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| From | jimp@specsol.spam.sux.com |
|---|---|
| Newsgroups | sci.physics |
| Subject | Re: Clouds Boost Arctic Warming More Than Expected |
| Date | 2015-12-16 03:46 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <4d37kc-drp.ln1@mail.specsol.com> (permalink) |
| References | <wIednRyiCOgYUO3LnZ2dnUU7-X-dnZ2d@giganews.com> |
Sam Wormley <swormley1@gmail.com> wrote: > Clouds Boost Arctic Warming More Than Expected >> http://www.reportingclimatescience.com/news-stories/article/clouds-boost-arctic-warming-more-than-expected.html > >> Abstract >> >> Infrared radiative processes are implicated in Arctic warming and >> sea-ice decline. The infrared cloud radiative effect (CRE) at the >> surface is modulated by cloud properties; however, CRE also depends >> on humidity because clouds emit at wavelengths that are >> semi-transparent to greenhouse gases, most notably water vapour. Here >> we show how temperature and humidity control CRE through competing >> influences between the mid- and far-infrared. At constant relative >> humidity, CRE does not decrease with increasing temperature/absolute >> humidity as expected, but rather is found to be approximately >> constant for temperatures characteristic of the Arctic. This >> stability is disrupted if relative humidity varies. Our findings >> explain observed seasonal and regional variability in Arctic CRE of >> order 10 W m−2. With the physical properties of Arctic clouds held >> constant, we calculate recent increases in CRE of 1–5 W m−2 in autumn >> and winter, which are projected to reach 5–15 W m−2 by 2050, implying >> increased sensitivity of the surface to clouds. >> >> Citation >> >> Humidity trends imply increased sensitivity to clouds in a warming >> Arctic by Christopher J. Cox, Von P. Walden, Penny M. Rowe and >> Matthew D. Shupe, published in Nature Communications, >> doi:10.1038/ncomms10117 >> Duh. Everybody already knows that clouds effect temperature. -- Jim Pennino
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Clouds Boost Arctic Warming More Than Expected Sam Wormley <swormley1@gmail.com> - 2015-12-15 20:33 -0600 Re: Clouds Boost Arctic Warming More Than Expected jimp@specsol.spam.sux.com - 2015-12-16 03:46 +0000 Re: Clouds Boost Arctic Warming More Than Expected gilber34 <fafa@invalid.com> - 2015-12-15 23:01 -0600 Re: Clouds Boost Arctic Warming More Than Expected Wally W. <ww84wa@aim.com> - 2015-12-16 07:47 -0500
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