The effect of atmospheric absorption of sunlight on the runaway greenhouse point
dc.contributor.author
dc.date.accessioned
2013-06-05T11:20:32Z
dc.date.available
2013-06-05T11:20:32Z
dc.date.issued
2002
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0148-0227
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dc.description.abstract
The longwave emission of planetary atmospheres that contain a condensable absorbing gas in the infrared (i.e., longwave), which is in equilibrium with its liquid phase at the surface, may exhibit an upper bound. Here we analyze the effect of the atmospheric absorption of sunlight on this radiation limit. We assume that the atmospheric absorption of infrared radiation is independent of wavelength except within the spectral width of the atmospheric window, where it is zero. The temperature profile in radiative equilibrium is obtained analytically as a function of the longwave optical thickness. For illustrative purposes, numerical values for the infrared atmospheric absorption (i.e., greenhouse effect) and the liquid vapor equilibrium curve of the condensable absorbing gas refer to water. Values for the atmospheric absorption of sunlight (i.e., antigreenhouse effect) take a wide range since our aim is to provide a qualitative view of their effects. We find that atmospheres with a transparent region in the infrared spectrum do not present an absolute upper bound on the infrared emission. This result may be also found in atmospheres opaque at all infrared wavelengths if the fraction of absorbed sunlight in the atmosphere increases with the longwave opacity
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application/pdf
dc.language.iso
eng
dc.publisher
American Geophysical Union
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Reproducció digital del document publicat a: http://dx.doi.org/10.1029/2001JD001578
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© Journal of Geophysical Research, 2002, vol. 102, núm. D21, p. 4566
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Articles publicats (D-F)
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Tots els drets reservats
dc.subject
dc.title
The effect of atmospheric absorption of sunlight on the runaway greenhouse point
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.embargo.terms
Cap
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
007937
dc.identifier.eissn
2156-2202