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Technical Note: on the Use of the Mushy-layer Rayleigh Number for the Interpretation of Sea-ice-core Data : Volume 7, Issue 4 (01/07/2013)

By Vancoppenolle, M.

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Book Id: WPLBN0004022872
Format Type: PDF Article :
File Size: Pages 22
Reproduction Date: 2015

Title: Technical Note: on the Use of the Mushy-layer Rayleigh Number for the Interpretation of Sea-ice-core Data : Volume 7, Issue 4 (01/07/2013)  
Author: Vancoppenolle, M.
Volume: Vol. 7, Issue 4
Language: English
Subject: Science, Cryosphere, Discussions
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Zhou, J., Delille, B., Vancoppenolle, M., Griewank, P., Jardon, F., Tison, J.,...Vivier, F. (2013). Technical Note: on the Use of the Mushy-layer Rayleigh Number for the Interpretation of Sea-ice-core Data : Volume 7, Issue 4 (01/07/2013). Retrieved from http://www.ebooklibrary.org/


Description
Description: LOCEAN – Laboratoire d'Océanographie et du Climat (CNRS, IRD, UPMC, MNHN), UMR7159, IPSL, Paris, France. We examine some practical aspects of using a mushy-layer Rayleigh number for the interpretation of sea-ice-core data. In principle, such analysis should allow one to determine convectively active regions within the ice core by identifying those regions in which the mush-Rayleigh number is super-critical. In practice, however, a quantitative analysis is complicated by uncertainties regarding the specific formulation of both the mush-Rayleigh number itself and of the sea-ice permeability that is crucial for quantifying the Rayleigh number. Additionally, brine loss from highly permeable sections of the ice core, in particular close to the ice–ocean interface, and typically weekly ice core sampling, limit the practical applicability of the Rayleigh number for ice-core interpretation. We here quantify these uncertainties, suggest a standard method for the computation of the Rayleigh number for sea ice and discuss possibilities and limitations of ice-core interpretation based on the Rayleigh number.

Summary
Technical Note: On the use of the mushy-layer Rayleigh number for the interpretation of sea-ice-core data

Excerpt
Vancoppenolle, M., Goosse, H., de Montety, A., Fichefet, T., Tremblay, B., and Tison, J.-L.: Modeling brine and nutrient dynamics in Antarctic sea ice: the case of dissolved silica, J. Geophys. Res., 115, C02005, doi:10.1029/2009JC005369, 2010.; Wells, A. J., Wettlaufer, J. S., and Orszag, S. A.: Maximal potential energy transport: a variational principle for solidification problems, Phys. Rev. Letters, 105, 254502, doi:10.1103/PhysRevLett.105.254502, 2010.; Assur, A.: Composition of sea ice and its tensile strength, A. Nat. Acad. Sci./Nat. Res. Council, Arctic Sea Ice, 598, 106–138, 1958.; Wells, A. J., Wettlaufer, J. S., and Orszag, S. A.: Brine fluxes from growing sea ice, Geophys. Res. Lett., 38, L04501, doi:10.1029/2010GL046288, 2011.; Wettlaufer, J. S., Worster, M. G., and Huppert, H. E.: The phase evolution of young sea ice, Geophys.\ Res. Lett., 24, 1251–1254, 1997.; Zhou, J., Delille, B., Eicken, H., Vancoppenolle, M., Brabant, F., Carnat, G., Geilfus, N.-X., Papakyriakou, T., and Tison, J.-L.: Physical and biogeochemical properties in landfast sea ice (Barrow, Alaska): insights on brine and gas dynamics across seasons, J. Geophys. Res., 118, 1–18, doi:10.1002/jgrc.20232, 2013.; Bitz, C. M. and Lipscomb, W. H.: An energy-conserving thermodynamic model of sea ice, J. Geophys. Res., 104, 15669–15677, 1999.; Carnat, G., Papakyriakou, T., Geilfus, N.-X., Brabant, F., Delille, B., Vancoppenolle, M., Gilson, G., Zhou, J., and Tison, J.-L.: Investigations on Arctic first-year sea ice physical and textural properties in the Amundsen Gulf, November 2007 until June 2008, J. Glaciol., 12J148R, in press, 2013.; Cottier, F., Eicken, H., and Wadhams, P.: Linkages between salinity and brine channel distribution in young sea ice, J. Geophys. Res., 104, 15859–15871, 1999.; Eicken, H., Lange, M. A., and Dieckmann, G. S.: Spatial variability of sea ice properties in the northwestern Weddell Sea, J. Geophys. Res., 96, 10603–10615, 1991.; Eicken, H., Grenfell, T. C., Perovich, D. K., Richter-Menge, J. A., and Frey, K.: Hydraulic controls of summer Arctic pack ice albedo, J. Geophys. Res., 109, C08007, doi:10.1029/2003JC001989, 2004.; Freitag, J.: Untersuchungen zur Hydrologie des arktischen Meereises–Konsequenzen für den kleinskaligen Stofftransport, Ber. Polarforsch., 325, 150 pp., 1999 (in German).; Golden, K. M., Ackley, S. F., and Lytle, V. I.: The percolation phase transition in sea ice, Science, 282, 2238–2241, 1998.; Gough, A., Mahoney, A., Williams, P. L. M., and Haskell, T.: Sea ice salinity and structure: A winter time series of salinity and its distribution, J. Geophys. Res., 117, C03008., doi:10.1029/2011JC007527, 2012.; Griewank, P. and Notz, D.: Insights into brine dynamics and sea-ice desalination from a 1-D model study of gravity drainage, J. Geophys. Res., doi:10.1002/jgrc.20247, 2013.; IOC, SCOR, and IAPSO: The international thermodynamic equation of seawater - 2010: Calculation and use of thermodynamic properties, Intergovernmental Oceanographic Commission, Manuals and Guides 56, UNESCO, 2010.; Jardon, F. P., Vivier, F., Vancoppenolle, M., Lourenço, A., Bouruet-Aubertot, P., and Cuypers, Y.: Full-depth desalination of warm sea ice, J. Geophys. Res.-Oceans, 118, 435–447, doi:10.1029/2012JC007962, 2013.; Massom, R. A., Eicken, H., Haas, C., Jeffries, M. O., Drinkwater, M. R., Sturm, M., Worby, A. P., Wu, X., Lytle, V. I., Ushio, S., Morris, K., Reid, P. A., Warren, S. G., and Allison, I.: Snow on Antarctic sea ice, Rev

 

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