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Soil temperature and electric potential during diurnal and seasonal freeze-thaw

dc.contributor.authorOutcalt, Samuel I.en_US
dc.contributor.authorGray, Donald H.en_US
dc.contributor.authorBenninghoff, William S.en_US
dc.date.accessioned2006-04-07T20:45:53Z
dc.date.available2006-04-07T20:45:53Z
dc.date.issued1989-07en_US
dc.identifier.citationOutcalt, S. I., Gray, D. H., Benninghoff, W. S. (1989/07)."Soil temperature and electric potential during diurnal and seasonal freeze-thaw." Cold Regions Science and Technology 16(1): 37-43. <http://hdl.handle.net/2027.42/27857>en_US
dc.identifier.urihttp://www.sciencedirect.com/science/article/B6V86-4894R0X-4W/2/3cc5f6cab71ee46bb6351702895be181en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/27857
dc.description.abstractCombined measurements of soil temperature and electric potential in the upper 15 cm of a glacial sandy-loam soil were made during the winters of 1986-1987 and 19871988 at the University of Michigan Botanical Gardens using an electronic data acquisition system at frequencies varying from 10 min to daily (midnight). Most of the data was collected at hourly intervals.Analysis of temperature-potential time series at two locations with probes at (0, 3, 6, 9) and (0, 5, 10, 15) cm depths indicated that the variation of electric potential relative to the potential of a 1.5 m ground spike could be interpreted as the response of an electrolytic concentration cell without transference formed by a probe and the ground spike. As the electrolyte concentration is much greater at the ground spike, and electric potential varies inversely with concentration, the potentials at the soil probes varied over the range of approximately 300-700 mV in a manner consistent with the behavior of a concentration cell.The rapid and systematic pattern of potential variation during freeze-thaw events demonstrates that the effects of electrolyte concentration and dilution are products of evaporation-distillation, the melting of frost-purified ice, soil water advection to the freezing-evaporating region, concentrated electrolyte expulsion from the freezing region and the infiltration of rain and snow melt waters.en_US
dc.format.extent607762 bytes
dc.format.extent3118 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherElsevieren_US
dc.titleSoil temperature and electric potential during diurnal and seasonal freeze-thawen_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelGeology and Earth Sciencesen_US
dc.subject.hlbsecondlevelGeography and Mapsen_US
dc.subject.hlbtoplevelScienceen_US
dc.subject.hlbtoplevelSocial Sciencesen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Geological Sciences, University of Michigan, Ann Arbor, MI 48109, U.S.A.en_US
dc.contributor.affiliationumDepartment of Civil Engineering, University of Michigan, Ann Arbor, MI 48109, U.S.A.en_US
dc.contributor.affiliationumDepartment of Biology, University of Michigan, Ann Arbor, MI 48109, U.S.A.en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/27857/1/0000269.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1016/0165-232X(89)90005-0en_US
dc.identifier.sourceCold Regions Science and Technologyen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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