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The physical structures of snow and sea ice in the Arctic section of 150°-180°W during the summer of 2010

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Abstract

The physical structures of snow and sea ice in the Arctic section of 150°–180°W were observed on the basis of snow-pit, ice-core, and drill-hole measurements from late July to late August 2010. Almost all the investigated floes were first-year ice, except for one located north of Alaska, which was probably multi-year ice transported from north of the Canadian Arctic Archipelago during early summer. The snow covers over all the investigated floes were in the melting phase, with temperatures approaching 0 °C and densities of 295–398 kg/m3. The snow covers can be divided into two to five layers of different textures, withmost cases having a top layer of fresh snow, a round-grain layer in themiddle, and slush and/or thin icing layers at the bottom. The first-year sea ice contained about 7%–17% granular ice at the top. There was no granular ice in the lower layers. The interiormelting and desalination of sea ice introduced strong stratifications of temperature, salinity, density, and gas and brine volume fractions. The sea ice temperature exhibited linear cooling with depth, while the salinity and the density increased linearly with normalized depth from 0.2 to 0.9 and from 0 to 0.65, respectively. The top layer, especially the freeboard layer, had the lowest salinity and density, and consequently the largest gas content and the smallest brine content. Both the salinity and density in the ice basal layer were highly scattered due to large differences in ice porosity among the samples. The bulk average sea ice temperature, salinity, density, and gas and brine volume fractions were −0.8 °C, 1.8, 837 kg/m3, 9.3% and 10.4%, respectively. The snow cover, sea ice bottom, and sea ice interior show evidences of melting duringmid-August in the investigated floe located at about 87°N, 175°W.

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References

  • Aoki T, Hachikubo A, Hori M. 2003. Effects of snow physical parameters on shortwave broadband albedos. Journal of Geophysical Research, 108(D19): 4616, doi:10.1029/2003JD003506

    Article  Google Scholar 

  • Cheng Bin. 2002. On the numerical resolution in a thermodynamic sea ice model. Journal of Glaciology, 48(161): 301–311

    Article  Google Scholar 

  • Cheng Bin, Vihma T, Pirazzini R, et al. 2006. Modeling of superimposed ice formation during spring snowmelt period in the Baltic Sea. Annals of Glaciology, 44: 139–146

    Article  Google Scholar 

  • Comiso J C, Parkinson C L, Gersten R, et al. 2008. Accelerated decline in the Arctic sea ice cover. Geophysical Research Letter, 35: L01703, doi:10.1029/2007GL031972

    Article  Google Scholar 

  • Cox GFN, Weeks WF. 1983. Equations for determining the gas and brine volumes in sea-ice samples. Journal of Glaciology, 29: 306–316

    Google Scholar 

  • Duguay C R, Flato G M, Jeffries M O, et al. 2003. Ice-cover variability on shallow lakes at high latitudes: model simulations and observations. Hydrological Processes, 17(17): 3465–3483

    Article  Google Scholar 

  • Eicken H. 1992. Salinity profiles of Antarctic sea ice: field data and model results. Journal of Geophysical Research, 97(C10): 15545–15557

    Article  Google Scholar 

  • Eicken H, Lensu M, Leppäranta M, et al. 1995. Thickness, structure, and properties of level summer multiyear ice in the Eurasian sector of the Arctic Ocean. Journal of Geophysical Research, 100(C11): 22697–22710

    Article  Google Scholar 

  • Haas C. 1998. Evaluation of ship-based electromagnetic-inductive thickness measurements of summer sea-ice in the Bellingshausen and Amundsen Seas, Antarctica. Cold Regions Science and Technology, 27: 1–16

    Article  Google Scholar 

  • Haas C, Pfaffling A, Hendricks S, et al. 2008. Reduced ice thickness in Arctic Transpolar Drift favors rapid ice retreat. Geophysical Research Letter, 35: L17501, doi:10.1029/2008GL034457

    Article  Google Scholar 

  • Kwok R, Rothrock D A. 2009. Decline in Arctic sea ice thickness from submarine and ICESat records: 1958–2008. Geophysical Research Letters, 36: L15501, doi:10.1029/2009GL039035

    Article  Google Scholar 

  • Lei Ruibo, Leppäranta M, Erm A, et al. 2011. Field investigations of apparent optical properties of ice cover in Finnish and Estonian lakes in winter 2009. Estonian Journal of Earth Sciences, 60(1): 50–64

    Article  Google Scholar 

  • Lei Ruibo, Li Zhijun, Cheng Bin, et al. 2010. Annual cycle of landfast sea ice in Prydz Bay, east Antarctica. Journal of Geophysical Research, 115: C02006, doi:10.1029/2008JC005223

    Article  Google Scholar 

  • Leppäranta M, Kosloff P. 2000. The thickness and structure of Lake Pääjärvi ice. Geophysica, 36(1–2): 233–248

    Google Scholar 

  • Leppäranta M, Manninen, T. 1988. The brine and gas content of sea ice with attention to low salinities and high temperatures. Internal Rep 88-2. Helsinki: Finnish Institute for Marine Research

    Google Scholar 

  • Leppäranta M, Reinart A, Erm A, et al. 2003. Investigation of ice and water properties and under-ice light fields in fresh and brackish water bodies. Nordic Hydrology, 34: 245–266

    Google Scholar 

  • Lü Wei, Feng Enmin, Lei Ruibo. 2009. Parameter identification for a nonlinear thermodynamic systemof sea ice. International Journal of Thermal Sciences, 48: 195–203

    Article  Google Scholar 

  • Markus T, Stroeve J C, Miller J. 2009. Recent changes in arctic sea ice melt onset, freezeup and melt season length. Journal of Geophysical Research, 114: C12024, doi:10.1029/2009JC005436

    Article  Google Scholar 

  • Nakawo M, Sinha NK. 1981. Growth rate and salinity profile of firstyear sea ice in the high arctic. Journal of Glaciology, 27(96): 315–330

    Google Scholar 

  • Nicolaus M, Gerland S, Hudson S R, et al. 2010. Seasonality of spectral albedo and transmittance as observed in the Arctic Transpolar Drift in 2007. Journal of Geophysical Research, 115: C11011, doi:10.1029/2009JC006074

    Article  Google Scholar 

  • Nicolaus M, Haas C, Bareiss J. 2003. Observations of superimposed ice formation at melt-onset on fast ice on Kongsfjorden, Svalbard. Physics and Chemistry of the Earth, 28: 1241–1248

    Article  Google Scholar 

  • Ono N. 1968. Thermal properties of sea ice: IV, Thermal constants of sea ice. Low Temperature Science, Ser. A, 26: 329–349

    Google Scholar 

  • Rasmus K, Ehn J, Granskog M, et al. 2002. Optical measurements of sea ice in the Gulf of Finland. Nordic Hydrology, 33: 207–226

    Google Scholar 

  • Sturm M, Holmgren J, König M, et al. 1997. The thermal conductivity of seasonal snow. Journal of Glaciology, 43: 26–41

    Google Scholar 

  • Sturm M, Perovich D K, Holmgren J. 2002. Thermal conductivity and heat transfer through the snow on the ice of the Beaufort Sea. Journal of Geophysical Research, 107(C10): 8043, doi:10.1029/2000JC000409

    Article  Google Scholar 

  • Sui Cuijun, Zhang Zhanhai, Ling Tiejun, et al. 2011. Status of Arctic sea ice and atmospheric circulation in summer 2010. Chinese Journal of Polar Research, 23(3): 205–216

    Google Scholar 

  • Timco GW, Frederking R M W. 1996. A review of sea ice density. Cold Regions Science and Technology, 14(1): 1–6

    Article  Google Scholar 

  • Untersteiner N. 1961. On the mass and heat budget of Arctic sea ice. Meteorology and Atmospheric Physics, 12(2): 151–182

    Google Scholar 

  • Worby A P, Allison I. 1999. A technique for making ship-based observations of antarctic sea ice thickness and characteristics: Part I. Observational technique and results Res Rep. Hbart, Tasmania: Australia, 14: 1–23

    Google Scholar 

  • Leppäranta M, Kosloff P. 2000. The thickness and structure of Lake Pääjärvi ice. Geophysica, 36(1–2): 233–248

    Google Scholar 

  • Worby A P, Geige C A, Paget M J, et al. 2008. Thickness distribution of Antarctic sea ice. Journal of Geophysical Research, 113: C05S92, doi:10.1029/2007JC004254

    Article  Google Scholar 

  • Worby A P, Griffin P W, Lytle V I, et al. 1999. On the use of electromagnetic induction sounding to determine winter and spring sea ice thickness in the Antarctic. Cold Regions Science and Technology, 29: 49–58

    Article  Google Scholar 

Download references

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Correspondence to Ruibo Lei.

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Foundation item: The National Natural Science Foundation of China under contract Nos 40930848, 41106160 and 41176080; the State Oceanic Administration of China under contract No. 2012240.

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Huang, W., Lei, R., Ilkka, M. et al. The physical structures of snow and sea ice in the Arctic section of 150°-180°W during the summer of 2010. Acta Oceanol. Sin. 32, 57–67 (2013). https://doi.org/10.1007/s13131-013-0314-4

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  • DOI: https://doi.org/10.1007/s13131-013-0314-4

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