The influence of closed brine pockets and permeable brine channels on the thermo-elastic properties of saline ice

Article, Other literature type English OPEN
Marchenko, Aleksey ; Lishman, Ben (2017)
  • Publisher: The Royal Society Publishing
  • Related identifiers: doi: 10.1098/rsta.2015.0351
  • Subject: Articles
    arxiv: Physics::Geophysics | Physics::Atmospheric and Oceanic Physics | Astrophysics::Earth and Planetary Astrophysics

A model of the thermo-elastic behaviour of saline ice is formulated, and model solutions describing thermo-elastic waves propagating into a half-space of the ice are investigated. The model is based on a proposal that saline ice is a matrix which encompasses both closed brine pockets and permeable channels filled with brine. Experiments on the thermal expansion of saline ice samples, and on thermo-elastic waves in saline ice, have been performed in the cold laboratories of the University Centre in Svalbard and in University College London. The experimental data are compared with theoretical conclusions. The experimental data support our hypothesis that the brine in saline ice is divided between closed pockets and open, permeable channels.
  • References (20)
    20 references, page 1 of 2

    1. Johnson J.B., Metzner R.C. 1990. Thermal expansion coefficients for sea ice. Journal of Glaciology, 36(124), 343-349.

    2.Golden, K.M., Eicken, H., Heaton, A.L., Miner, J., Pringle, D.J., Zhu, J. 2007. Thermal evolution of permeability and

    microstructure in sea ice. Geophysical Research Letters, 34, L 16501. 3. Petterson, O. 1883. On the properties of water and ice. In Nordenskiold, ed. Vega-expeditionens veisnskapliga

    iakttagelser. Bd.2. Stockholm, F. and G. Beijers Forlag, 247-323. 4. Malmgren, F., 1927. On- the properties of sea ice. Tech. Rep. Vol. 1a, Scientific results : The Norwegian North Polar

    Expedition with the "Maud" 1918-1925, ed. Harald U. Sverdrup, 67pp. 5. Cole, D.M., Shapiro, L.H., 1998. Observations of brine drainage networks and microstructure of first-year sea ice.

    Journal of Geophysical Research, 103(NC10), 21,739-21,750.

    6.Cox, G.F.N. 1983. Thermal expansion of saline ice. Journal of Glaciology, 29(103), 425-432. 7. Marchenko, A., Thiel, T., Sukhorukov, S. 2012. Measurements of Thermally Induced Deformations in Saline Ice with

    Fiber Bragg Grating Sensors. Proceedings of 21st IAHR International Symposium on Ice "Ice Research for a Sustainable

    Environment", Li and Lu (ed.), Dalian University of Technology Press, Dalian, T07105, 9pp. 8. Marchenko, A., Wrangborg, D., Thiel., T. 2013. Using distributed optical fiber sensors based on FBGs for the

    measurement of temperature fluctuations in saline ice and water on small scales. Proceedings of POAC13, Espoo,

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