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HDO in the Martian Atmosphere: Implications for the Abundance of Crustal Water

Yung, Yuk L. and Wen, Jun-Shan and Pinto, Joseph P. and Allen, Mark and Pierce, Kathryn K. and Paulson, Suzanne (1988) HDO in the Martian Atmosphere: Implications for the Abundance of Crustal Water. Icarus, 76 (1). pp. 146-159. ISSN 0019-1035. http://resolver.caltech.edu/CaltechAUTHORS:20140812-085451392

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Abstract

The physical and chemical processes that lead to the preferential escape of hydrogen over deuterium in the Martian atmosphere are studied in detail using a one-dimensional photochemical model. Comparison of our theory with recent observations of HDO suggests that, averaged over the planet, Mars contains 0.2 m of crustal water that is exchangeable with the atmosphere. Our estimate is considerably lower than recent estimates of subsurface water on Mars based on geomorphological analysis of Viking images. The estimate can be reconciled if only a small fraction of crustal water can exchange with the atmosphere.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0019-1035(88)90147-9DOIArticle
http://www.sciencedirect.com/science/article/pii/0019103588901479PublisherArticle
Additional Information:© 1988 Academic Press, Inc. Received December 7, 1987; revised February 29, 1988. We thank T. Owen for communicating to us observational results prior to publication. One of us (JPP) thanks the Planetary Science Faculty for their hospitality during his visit at the Division of Geological and Planetary Sciences at Caltech. This research was supported by NASA Grants NSG 7376 and NAGW-254 to the California Institute of Technology.
Funders:
Funding AgencyGrant Number
NASANSG-7376
NASANAGW-254
Record Number:CaltechAUTHORS:20140812-085451392
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140812-085451392
Official Citation:Yung, Y. L., Wen, J.-S., Pinto, J. P., Allen, M., Pierce, K. K., & Paulson, S. (1988). HDO in the Martian atmosphere: Implications for the abundance of crustal water. Icarus, 76(1), 146-159. doi: http://dx.doi.org/10.1016/0019-1035(88)90147-9
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48372
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:12 Aug 2014 18:31
Last Modified:12 Aug 2014 18:31

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