Temperatures in a runaway greenhouse on the evolving Venus: implications for water loss
dc.contributor.author | Watson, Andrew J. | en_US |
dc.contributor.author | Donahue, Thomas M. | en_US |
dc.contributor.author | Kuhn, William R. | en_US |
dc.date.accessioned | 2006-04-07T18:28:58Z | |
dc.date.available | 2006-04-07T18:28:58Z | |
dc.date.issued | 1984-04 | en_US |
dc.identifier.citation | Watson, Andrew J., Donahue, T. M., Kuhn, W. R. (1984/04)."Temperatures in a runaway greenhouse on the evolving Venus: implications for water loss." Earth and Planetary Science Letters 68(1): 1-6. <http://hdl.handle.net/2027.42/24845> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6V61-476F27D-5G/2/6cd44535f3cb26de41c156bef270c4fb | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/24845 | |
dc.description.abstract | Recent work has established that Venus once had at least 100 times its present complement of outgassed water. An original complement of water comparable to the earth's is not inconsistent with our present knowledge (and is worthy of consideration since it involves no special assumptions concerning the differences in origin of the two planets). We use a one-dimensional calculation to investigate temperatures in the "runaway greenhouse" which may have ensued if Venus once had more than a few percent of the earth's water complement. We find that the atmosphere must exhibit an unusual structure, with condensation and presumably cloud formation taking place at high altitudes, while deep in the atmosphere the gas is strongly unsaturated with respect to water vapour. The necessity of including clouds introduces considerable uncertainty into the calculation of surface temperatures. However, for certain reasonable values of the cloud parameters, very high temperatures can be sustained, approaching the temperature of the basalt solidus. We speculate that such high temperatures may have promoted water-rock reactions, releasing free hydrogen and "burying" oxygen. A plastic or molten surface could have promoted rapid exposure of fresh rock, significantly easing the problem of disposing of the oxygen released by the dissociation of water. | en_US |
dc.format.extent | 440565 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Temperatures in a runaway greenhouse on the evolving Venus: implications for water loss | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Geology and Earth Sciences | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Atmosphere and Ocean Science, University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationum | Department of Atmosphere and Ocean Science, University of Michigan, Ann Arbor, MI 48109, U.S.A. | en_US |
dc.contributor.affiliationother | Marine Biological Association of the U.K., The Laboratory, Citadel Hill, Plymouth PL1 2PB, U.K. | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/24845/1/0000271.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0012-821X(84)90135-3 | en_US |
dc.identifier.source | Earth and Planetary Science Letters | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.