The porous nature of sea ice not only provides a habitat for ice algae but also opens a pathway for exchanges of organic matter, nutrients, and gases with the seawater below and the atmosphere above. These constituents permeate the ice cover through air-ice gas exchange, brine drainage, seawater entrainment into the ice, and air-sea gas exchange within leads and polynyas. The central goal in sea ice biogeochemistry since the 1980s has been to discover the physical, biological, and chemical rates and pathways by which sea ice affects the distribution and storage of biogenic gases (namely CO2, O2, and dimethyl sulfide) between the ocean and the atmosphere. Historically, sea ice held the fascination of scientists for its role in the ocean heat budget, and the resulting view of sea ice as a barrier to heat and mass transport became its canonical representation. However, the recognition that sea ice contains a vibrant community of ice-tolerant organisms and strategic reserves of carbon has brought forward a more nuanced view of the “barrier” as an active participant in polar biogeochemical cycles. In this context, the organisms and their habitat of brine and salt crystals drive material fluxes into and out of the ice, regulated by liquid and gas permeability. Today, scientists who study sea ice are acutely focused on determining the flux pathways of inorganic carbon, particulate organics, climate-active gases, excess carbonate alkalinity, and ultimately, the role of all of these constituents in the climate system. Thomas and Dieckmann (2010) recently reviewed sea ice biogeochemistry, and so we do not attempt a comprehensive review here. Instead, our goal is to provide a historical perspective, along with some recent discoveries and observations to highlight the most outstanding questions and possibly useful avenues for future research.

Loose, B., L.A. Miller, S. Elliott, and T. Papakyriakou. 2011. Sea ice biogeochemistry and material transport across the frozen interface. Oceanography 24(3):202–218, https://doi.org/10.5670/oceanog.2011.72.

Alekseev, G.V., and A.P. Nagurny. 2007. Role of sea ice in the formation of annual carbon dioxide cycle in the Arctic. Doklady Earth Sciences 417A:1,398–1,401.

Amiro, B. 2010. Estimating annual carbon dioxide eddy fluxes using open-path analysers for cold forest sites. Agricultural and Forest Meteorology 150:1,366–1,372.

Anderson, L.G., and E.P. Jones. 1985. Measurements of total alkalinity, calcium, and sulfate in natural sea ice. Journal of Geophysical Research 90:9,194–9,198, https://doi.org/10.1029/JC090iC05p09194.

Anderson, L.G., E. Falck, E.P. Jones, S. Jutterström, and J.H. Swift. 2004. Enhanced uptake of atmospheric CO2 during freezing of seawater: A field study in Storfjorden, Svalbard. Journal of Geophysical Research 109, C06004, https://doi.org/10.1029/2003JC002120.

Arrigo, K.R., J. Kremer, and C.W. Sullivan. 1993. A simulated Antarctic fast ice ecosystem. Journal of Geophysical Research 98:6,929–6,946, https://doi.org/10.1029/93JC00141.

Arrigo, K., T. Mock, and M. Lizotte. 2010. Primary producers and sea ice. Pp. 282–325 in Sea Ice. D.N. Thomas and G.S. Dieckmann, eds, Wiley-Blackwell, Oxford, UK.

Arrigo, K.R., D.L. Worthen, M.P. Lizotte, P. Dixon, and G. Dieckmann. 1997. Primary production in Antarctic sea ice. Science 276:394–398, https://doi.org/10.1126/science.276.5311.394.

Assur, A. 1958. Composition of sea ice and its tensile strength. Pp. 106–138 in Arctic Sea Ice. Conference held at Easton, Maryland, February 24–27, 1958, National Academy of Sciences-National Academy of Engineering, Washington, DC, Research Publication 598.

Ayers, G.P., and J.M. Cainey. 2007. The CLAW hypothesis: A review of the major developments. Environmental Chemistry 4:366–374, https://doi.org/10.1071/EN07080.

Bakan, S. 1978. Note on the eddy correlation method for CO2 flux measurements. Boundary-Layer Meterology 14:597–600, https://doi.org/10.1007/BF00121898.

Bakker, D.C.E., H.J.W. DeBaar, and U.V. Bathmann. 1997. Changes of carbon dioxide in surface waters during spring in the Southern Ocean. Deep-Sea Research Part II 44:91–127, https://doi.org/10.1016/S0967-0645(96)00075-6.

Baldochi, D. 2003. Assessing the eddy covariance technique for evaluating carbon dioxide exchange rates of ecosystems: Past, present and future. Global Change Biology 9:479–492, https://doi.org/10.1046/j.1365-2486.2003.00629.x.

Booth, J.A. 1984. The epontic algal community of the ice edge zone and its significance to the Davis Strait ecosystem. Arctic 37:234–243.

Burba, G.G., D.K. McDermitt, A. Grelle, D.J. Anderson, and L. Xu. 2008. Addressing the influence of instrument surface heat exchange on the measurements of CO2 flux from open-path gas analyzers. Global Change Biology 14:1,854–1,876.

Burkholder, P.R., and E.F. Mandelli. 1965. Productivity of microalgae in Antarctic Sea Ice. Science 149:872–874, https://doi.org/10.1126/science.149.3686.872.

Carey, A.G. Jr. 1987. Particle flux beneath fast ice in the shallow southwestern Beaufort Sea, Arctic Ocean. Marine Ecology Progress Series 40:247–257, https://doi.org/10.3354/meps040247.

Caron, D.A., and R.J. Gast. 2010. Heterotrophic protists associated with sea ice. Chapter 9 in Sea Ice, 2nd ed. D.N. Thomas and G.S. Dieckmann, eds, Wiley-Blackwell, Oxford, UK, https://doi.org/10.1002/9781444317145.ch9.

Charlson, R.J., J.E. Lovelock, M.O. Andreae, and S.G. Warren. 1987. Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate. Nature 326:655–661, https://doi.org/10.1038/326655a0.

Cox, G.F.N., and W.F. Weeks. 1983. Equations for determining the gas and brine volumes in sea-ice samples. Journal of Glaciology 29:306–316.

Cox, G.F.N., and W.F. Weeks. 1988. Numerical simulations of the profile properties of undeformed first-year sea ice during the growth season. Journal of Geophysical Research 93:12,449–12,460, https://doi.org/10.1029/JC093iC10p12449.

Deal, C., M. Jin, S. Elliot, E.C. Hunke, M. Maltrud, and N. Jeffrey. 2011. Large-scale modeling of primary production and ice algal biomass within arctic sea ice in 1992. Journal of Geophysical Research 116, C07004, https://doi.org/10.1029/2010JC006409.

Delille, B. 2006. Inorganic Carbon Dynamics and Air-Ice-Sea CO2 Fluxes in the Open and Coastal Waters of the Southern Ocean. Docteur en Sciences thesis, Université de Liège, Liège, France.

Delille, B., B. Jourdain, A.V. Borges, J.-L. Tison, and D. Delille. 2007. Biogas (CO2, O2, dimethylsulfide) dynamics in spring Antarctic fast ice. Limnology and Oceanography 52:1,367–1,379, https://doi.org/10.4319/lo.2007.52.4.1367.

Deming, J.W. 2010. Sea ice bacteria and viruses. Chapter 7 in Sea Ice, 2nd ed. D.N. Thomas and G.S. Dieckmann, eds, Wiley-Blackwell, Oxford, UK.

Dieckmann, G.S., G. Nehrke, S. Papadimitriou, J. Göttlicher, R. Steninger, H. Kennedy, D. Wolf-Gladrow, and D.N. Thomas. 2008. Calcium carbonate as ikaite crystals in Antarctic sea ice. Geophysical Research Letters 35, L08501, https://doi.org/10.1029/2008GL033540.

Edson, J.B., A.A. Hinton, K.E. Prada, J.E. Hare, and C.W. Fairall. 1998. Direct covariance flux estimates from mobile platforms at sea. Journal of Atmospheric and Oceanic Technology 15:547–562, https://doi.org/10.1175/1520-0426(1998)015<0547:DCFEFM>2.0.CO;2.

Elliot, S., E.C. Hunke, N. Jeffrey, A. Turner, M. Maltrud, C. Deal, and M. Jin. 2010. Systems level simulation of sea ice-atmosphere biogeochemistry connections. SOLAS News 11:14–18.

Else, B.G.T., T.N. Papakyriakou, R.J. Galley, W.M. Drennan, L.A. Miller, and H. Thomas. In press. Eddy covariance measurements of wintertime CO2 fluxes in an arctic polynya: Evidence for enhanced gas transfer during ice formation. Journal of Geophysical Research, https://doi.org/10.1029/2010JC006760.

Feltham, D.L., N. Untersteiner, and J.S. Wettlaufer. 2006. Sea ice is a mushy layer. Geophysical Research Letters 33, L14501, https://doi.org/10.1029/2006GL026290.

Freiss, U., T. Deutschmann, B. Gilfedder, R. Weller, and U. Platt. 2010. Iodine monoxide in the Antarctic snowpack. Atmospheric Chemistry and Physics 10:2,439–2,456.

Freitag, J., and H. Eicken. 2003. Meltwater circulation and permeability of Arctic summer sea ice derived from hydrological field experiments. Journal of Glaciology 49:349–358, https://doi.org/10.3189/172756503781830601.

Fritsen, C., S.F. Ackley, J. Kremer, and C.W. Sullivan. 1998. Flood-freeze cycles and microalgal dynamics in Antarctic pack ice. Pp. 1–22 in Antarctic Sea Ice: Biological Processes, Interactions and Variability. Antarctic Research Series, vol. 73. M. Lizotte and K.R. Arrigo, eds, American Geophysical Union, Washington, DC.

Gibson, J.A.E., and T.W. Trull. 1999. Annual cycle of fCO2 under sea-ice and in open water in Prydz Bay, East Antarctica. Marine Chemistry 66:187–200, https://doi.org/10.1016/S0304-4203(99)00040-7.

Gitterman, K.E. 1937. Thermal analysis of sea water. Trudy Solyanoy Laboratorii (Transactions of Saline Laboratory) 15:5–23.

Golden, K.M., S.F. Ackley, and V.I. Lytle. 1998. The percolation phase transition in sea ice. Science 282:2,238–2,241, https://doi.org/10.1126/science.282.5397.2238.

Golden, K.M., H. Eicken, A.L. Heaton, J. Miner, D.J. Pringle, and J. Zhu. 2007. Thermal evolution of permeability and microstructure in sea ice. Geophysical Research Letters 34, L16501, https://doi.org/10.1029/2007GL030447.

Golden, K.M., A.L. Heaton, H. Eicken, and V.I. Lytle. 2006. Void bounds for fluid transport in sea ice. Mechanics of Materials 38:801–817, https://doi.org/10.1016/j.mechmat.2005.06.015.

Gosink, T.A. 1980. Atmospheric trace gases in association with sea ice. Antarctic Journal of the United States 15:82–83.

Gosink, T.A., J.G. Pearson, and J.J. Kelly. 1976. Gas movement through sea-ice. Nature 263:41–42, https://doi.org/10.1038/263041a0.

Holter, P. 1990. Sampling air from dung pats by silicone rubber diffusion chambers. Soil Biology & Biochemistry 22:995–997, https://doi.org/10.1016/0038-0717(90)90143-N.

Jacinthe, P.-A., and W.A. Dick. 1996. Use of silicone tubing to sample nitrous oxide in the soil atmosphere. Soil Biology & Biochemistry 28:721–726, https://doi.org/10.1016/0038-0717(95)00176-X.

Jeffrey, N., E.C. Hunke, and S. Elliot. In press. Modeling the transport of passive tracers in sea ice. Journal of Geophysical Research, https://doi.org/10.1029/2010JC006527.

Jin, M., C. Deal, J. Wang, K. Shin, N. Tanaka, T. Whitledge, S. Lee, and R. Gradinger. 2006. Controls of the landfast ice-ocean ecosystem offshore Barrow, Alaska. Annals of Glaciology 44:63–72, https://doi.org/10.3189/172756406781811709.

Jones, E.P., and A.R. Coote. 1981. Oceanic CO2 produced by the precipitation of CaCO3 from brines in sea ice. Journal of Geophysical Research 86:11,041–11,043, https://doi.org/10.1029/JC086iC11p11041.

Kammann, C., L. Grünhage, and H.-J. Jäger. 2001. A new sampling technique to monitor concentrations of CH4, N2O and CO2 in air at well-defined depths in soils with varied water potential. European Journal of Soil Science 52:297–303, https://doi.org/10.1046/j.1365-2389.2001.00380.x.

Kawamoto, K., P. Moldrup, P. Schjonning, B.V. Iversen, D.E. Rolston, and T. Komatsu. 2006. Gas transport parameters in the vadose zone: Gas diffusivity in field and lysimeter soil profiles. Vadose Zone Journal 5:1,194–1,204.

Kelley, J.J. 1987. Carbon dioxide in the Arctic environment. The Journal of Earth Sciences 35:341–354.

Kelley, J.J., and T.A. Gosink. 1979. Gases in Sea Ice: 1975–1979. University of Alaska Fairbanks, Fairbanks, AK.

Killawee, J.A., I.J. Fairchild, J.-L. Tison, L. Janssens, and R. Lorrain. 1998. Segregation of solutes and gases in experimental freezing of dilute solutions: Implications for natural glacial systems. Geochimica et Cosmochimica Acta 62:3,637–3,655, https://doi.org/10.1016/S0016-7037(98)00268-3.

Krembs, C., H. Eicken, and J.W. Deming. 2011. Exopolymer alteration of physical properties of sea ice and implications for ice habitability and biogeochemistry in a warmer Arctic. Proceedings of the National Academy Sciences of the United States of America 108:3,653–3,658, https://doi.org/10.1073/pnas.1100701108.

Krembs, C., H. Eicken, K. Junge, and J.W. Deming. 2002. High concentrations of exopolymeric substances in Arctic winter sea ice: Implications for the polar ocean carbon cycle and cryoprotection of diatoms. Deep-Sea Research Part I 49:2,163–2,181, https://doi.org/10.1016/S0967-0637(02)00122-X.

Kuosa, H., B. Norrman, K. Kivi, and F. Brandini. 1992. Effects of Antarctic sea ice biota on seeding as studied in aquarium experiments. Polar Biology 12:333–339, https://doi.org/10.1007/BF00243104.

Kvenvolden, K.A., M.D. Lilley, T.D. Lorenson, P.W. Barnes, and E. McLaughlin. 1993. The Beaufort Sea continental shelf as a seasonal source of atmospheric methane. Geophysical Research Letters 20:2,459–2,462, https://doi.org/10.1029/93GL02727.

Lannuzel, D., V. Schoemann, J. de Jong, B. Pasquer, P. van der Merwe, F. Masson, J.-L. Tison, and A. Bowie. 2010. Distribution of dissolved iron in Antarctic sea ice: Spatial, seasonal, and inter-annual variability. Journal of Geophysical Research 115, G03022, https://doi.org/10.1029/2009JG001031.

Lannuzel, D., V. Schoemann, J. de Jong, J.-L. Tison, and L. Chou. 2007. Distribution and biogeochemical behaviour of iron in the East Antarctic sea ice. Marine Chemistry 106:18–32, https://doi.org/10.1016/j.marchem.2006.06.010.

Lavoie, D., K. Denman, and C. Michel. 2005. Modeling ice algal growth and decline in a seasonally ice-covered region of the Arctic. Journal of Geophysical Research 110, C11009, https://doi.org/10.1029/2005JC002922.

Legendre, L., S.F. Ackley, G.S. Dieckmann, B. Gulliksen, R. Horner, T. Hoshiai, I.A. Melnikov, W.S. Reeburgh, M. Spindler, and C.W. Sullivan. 1992. Ecology of sea ice biota. 2. Global significance. Polar Biology 12:429–444, https://doi.org/10.1007/BF00243114.

Levasseur, M., M. Gosselin, and S. Michaud. 1994. A new source of dimethylsulfide (DMS) for the arctic atmosphere: Ice diatoms. Marine Biology 121:381–387, https://doi.org/10.1007/BF00346748.

Light, B., G.A. Maykut, and T.C. Grenfell. 2003. Effects of temperature on the microstructure of first-year Arctic sea ice. Journal of Geophysical Research 108, 3051, https://doi.org/10.1029/2001JC000887.

Lizotte, M.P. 2001. The contributions of sea ice algae to Antarctic marine primary production. American Zoology 41:57–73, https://doi.org/10.1668/0003-1569(2001)041[0057:TCOSIA]2.0.CO;2.

Loose, B., W.R. McGillis, P. Schlosser, D. Perovich, and T. Takahashi. 2009. The effects of freezing, growth and ice cover on gas transport processes in laboratory seawater experiments. Geophysical Research Letters 36, L05603, https://doi.org/10.1029/2008GL036318.

Loose, B., P. Schlosser, D. Perovich, D. Ringelberg, D.T. Ho, T. Takahashi, J. Richter-Menge, C.M. Reynolds, W.R. McGillis, and J.-L. Tison. 2010. Gas diffusion through columnar laboratory sea ice: Implications for mixed-layer ventilation of CO2 in the seasonal ice zone. Tellus B, https://doi.org/10.1111/j.1600-0889.2010.00506.x.

Lyakhin, Y.I. 1970. Saturation of water of the Sea of Okhotsk with calcium carbonate. Oceanology 10:789–795.

Marion, G.M. 2001. Carbonate mineral solubility at low temperatures in the Na-K-Mg-Ca-H-Cl-SO4-OH-HCO3-CO3-CO2-H2O system. Geochimica et Cosmochimica Acta 65:1,883–1,896.

Martinson, D.G. 1990. Evolution of the Southern Ocean winter mixed layer and sea ice: Open ocean deep-water formation and ventilation. Journal of Geophysical Research 95:11,641–11,654, https://doi.org/10.1029/JC095iC07p11641.

Massman, W.J., and X. Lee. 2002. Eddy covariance flux corrections and uncertainties in long-term studies of carbon and energy exchanges. Agricultural and Forest Meteorology 113:121–144, https://doi.org/10.1016/S0168-1923(02)00105-3.

Matrai, P., L. Tranvik, C. Leck, and J. Knulst. 2008. Are high arctic surface microlayers a potential source of aerosol organic precursors? Marine Chemistry 108:109–122, https://doi.org/10.1016/j.marchem.2007.11.001.

Matsuo, S., and Y. Miyake. 1966. Gas composition in ice samples from Antarctica. Journal of Geophysical Research 71:5,235–5,241.

McGillis, W.R., J.B. Edson, J.E. Hare, and C.W. Fairall. 2001. Direct covariance air-sea CO2 fluxes. Journal of Geophysical Research 106:16,729–16,745, https://doi.org/10.1029/2000JC000506.

Miller, L.A., G. Carnat, B.G.T. Else, N. Sutherland, and T.N. Papakyriakou. In press. Carbonate system evolution at the Arctic Ocean surface during autumn freeze-up. Journal of Geophysical Research, https://doi.org/10.1029/2011JC007143.

Miller, L.A., R.E. Collins, J.W. Deming, J.K. Ehn, R.W. Macdonald, A. Mucci, O. Owens, M. Raudsepp, and N. Sutherland. 2011. Carbon dynamics in Sea Ice: A winter flux time series. Journal of Geophysical Research 116, C02028, https://doi.org/10.1029/2009JC006058.

Miyake, Y., and S. Matsuo. 1963. A role of sea ice and sea water in the Antarctic on the carbon dioxide cycle in the atmosphere. Papers in Meteorology and Geophysics 14:120–125.

Mock, T., and D.N. Thomas. 2005. Recent advances in sea-ice microbiology. Environmental Microbiology 7:605–619, https://doi.org/10.1111/j.1462-2920.2005.00781.x.

Mock, T., G.S. Dieckmann, C. Haas, A. Krell, J.-L. Tison, A.L. Belem, S. Papadimitriou, and D.N. Thomas. 2002. Micro-optodes in sea ice: A new approach to investigate oxygen dynamics during sea ice formation. Aquatic Microbial Ecology 29:297–306, https://doi.org/10.3354/ame029297.

Mock, T., M. Kruse, and G.S. Dieckmann. 2003. A new microcosm to investigate oxygen dynamics at the sea ice water interface. Aquatic Microbial Ecology 30:197–205, https://doi.org/10.3354/ame030197.

Moldrup, P., T. Olesen, S. Yoshikawa, T. Komatsu, and D.E. Rolston. 2004. Three-porosity model for predicting the gas diffusion coefficient in undisturbed soil. Soil Science Society of America Journal 68:750–759, https://doi.org/10.2136/sssaj2004.0750.

Moore, J., S. Doney, J. Kleypas, D. Glover, and I. Fung. 2002. An intermediate complexity marine ecosystem model for the global domain. Deep-Sea Research Part II 49:403–462, https://doi.org/10.1016/S0967-0645(01)00108-4.

Moore, J., S. Doney, and K. Lindsay. 2004. Upper ocean ecosystem dynamics and iron cycling in a global three dimensional model. Global Biogeochemical Cycles 18, GB4028, https://doi.org/10.1029/2004GB002220.

Nagurnyi, A.P. 2008. On the role of the Arctic sea ice in seasonal variability of carbon dioxide concentration in northern latitudes. Russian Meteorology and Hydrology 33:43–47.

Nelson, K.H., and T.G. Thompson. 1954. Deposition of salts from sea water by frigid concentration. Journal of Marine Research 13:166–182.

Nomura, D., H. Eicken, R. Gradinger, and K. Shirasawa. 2010a. Rapid physically driven inversion of the air-sea ice CO2 flux in the seasonal landfast ice off Barrow, Alaska after onset of surface melt. Continental Shelf Research 30:1,998–2,004, http://www.sciencedirect.com/science/article/pii/S0278434310003067.

Nomura, D., T. Takatsuka, M. Ishikawa, T. Kawamura, K. Shirasawa, and H. Yoshikawa-Inoue. 2009. Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan. Estuarine, Coastal and Shelf Science 81:201–209, https://doi.org/10.1016/j.ecss.2008.10.012.

Nomura, D., H. Yoshikawa-Inoue, and T. Toyota. 2006. The effect of sea-ice growth on air-sea CO2 flux in a tank experiment. Tellus 58B:418–426, https://doi.org/10.1111/j.1600-0889.2006.00204.x.

Nomura, D., H. Yoshikawa-Inoue, T. Toyota, and K. Shirasawa. 2010b. Effects of snow, snowmelting and refreezing processes on air-sea-ice CO2 flux. Journal of Glaciology 56:262–270, https://doi.org/10.3189/002214310791968548.

Notz, D., and M.G. Worster. 2009. Desalination processes of sea ice revisited. Journal of Geophysical Research 114, C05006, https://doi.org/10.1029/2008JC004885.

Obzhirov, A., R. Shakirov, A. Salyuk, E. Suess, N. Biebow, and A. Salomatin. 2004. Relations between methane venting, geological structure and seismo-tectonics in the Okhotsk Sea. Geo-Maring Letters 24:135–139, https://doi.org/10.1007/s00367-004-0175-0.

Oertling, A.B., and R.G. Watts. 2004. Growth of and brine drainage from NaCl-H2O freezing: A simulation of young sea ice. Journal of Geophysical Research 109, C04013, https://doi.org/10.1029/2001JC001109.

Orsi, A.H., G.C. Johnson, and J.L. Bullister. 1999. Circulation, mixing and production of Antarctic Bottom Water. Progress in Oceanography 43:55–109, https://doi.org/10.1016/S0079-6611(99)00004-X.

Papadimitriou, S., D.N. Thomas, H. Kennedy, C. Haas, H. Kuosa, A. Krell, and G.S. Dieckmann. 2007. Biogeochemical composition of natural sea ice brines from the Weddell Sea during early austral summer. Limnology and Oceanography 52:1,809–1,823, https://doi.org/10.4319/lo.2007.52.5.1809.

Papakyriakou, T., and L. Miller. 2011. Springtime CO2 exchange over seasonal sea ice in the Canadian Arctic Archipelago. Annals of Glaciology 52:215–224, https://doi.org/10.3189/172756411795931534.

Perovich, D.K., and A.J. Gow. 1996. A quantitative description of sea ice inclusions. Journal of Geophysical Research 101:18,327–18,343, https://doi.org/10.1029/96JC01688.

Petrich, C., and H. Eicken. 2010. Growth, structure and properties of sea ice. Chapter 2 in Sea Ice, 2nd ed. D.N. Thomas and G.S. Dieckmann, eds, Wiley-Blackwell, Oxford, UK, https://doi.org/10.1002/9781444317145.ch2.

Prytherch, J., M.J. Yelland, R.W. Pascal, B.I. Moat, I. Skjelvan, and C.C. Neill. 2010. Direct measurements of the CO2 flux over the ocean: Development of a novel method. Journal of Geophysical Research 37, L03607, https://doi.org/10.1029/2009GL041482.

Rysgaard, S., J. Bendtsen, L.T. Pedersen, H. Ramlov, and R.N. Glud. 2009. Increased CO2 uptake due to sea ice growth and decay in the Nordic Seas. Journal of Geophysical Research 114, C09011, https://doi.org/10.1029/2008JC005088.

Rysgaard, S., R.N. Glud, M.K. Sejr, J. Bendtsen, and P.B. Christensen. 2007. Inorganic carbon transport during sea ice growth and decay: A carbon pump in polar seas. Journal of Geophysical Research 112, C03016, https://doi.org/10.1029/2006JC003572.

Rysgaard, S., R.N. Glud, M.K. Sejr, M.E. Blicher, and H.J. Stahl. 2008. Denitrification activity and oxygen dynamics in Arctic sea ice. Polar Biology 31:527–537, https://doi.org/10.1007/s00300-007-0384-x.

Saiz-Lopez, A., A. Mahajan, R. Salmon, S. Bauguitte, A. Jones, H. Roscoe, and J. Plane. 2007. Boundary layer halogens in coastal Antarctica. Science 317:348–351, https://doi.org/10.1126/science.1141408.

Semiletov, I., A. Makshtas, S.-I. Akasofu, and E.L. Andreas. 2004. Atmospheric CO2 balance: The role of Arctic sea ice. Geophysical Research Letters 31, L05121, https://doi.org/10.1029/2003GL017996.

Shakhova, N., V. Sergienko, and I. Semiletov. 2009. The contribution of the East Siberian Shelf to the modern methane cycle. Herald of the Russian Academy of Science 79:237–246, https://doi.org/10.1134/S101933160903006X.

Simpson, W.R., R. von Glasow, R. Riedel, K. Anderson, P. Ariya, J. Bottenheim, J. Burrows, L.J. Carpenter, U. Frieß, M.E. Goodsite, and others. 2007. Halogens and their role in polar boundary-layer ozone depletion. Atmospheric Chemistry and Physics 7:4,375–4,418, https://doi.org/10.5194/acp-7-4375-2007.

Smith, W.O., and D.M. Nelson. 1985. Phytoplankton bloom produced by a receding ice edge in the Ross Sea: Spatial coherence with the density field. Science 227:163–166, https://doi.org/10.1126/science.227.4683.163.

Smith, W.O., and D.M. Nelson. 1986. Importance of ice edge phytoplankton production. Bioscience 36:251–257, https://doi.org/10.2307/1310215.

Steele, M., and J.H. Morison. 1995. Halocline water formation in the Barents Sea. Journal of Geophysical Research 100:881–894, https://doi.org/10.1029/94JC02310.

Stefels, J., M. Steinke, S. Turner, G. Malin, and S. Belviso. 2007. Environmental constraints on the production and removal of dimethylsulphide and implications for ecosystem modeling. Biogeochemistry 83:245–275, https://doi.org/10.1007/s10533-007-9091-5.

Sweeney, C. 2003. The annual cycle of surface CO2 and O2 in the Ross Sea: A model for gas exchange on the continental shelves of Antarctica. Pp. 295–312 in Biogeochemistry of the Ross Sea. G.R. DiTullio and R.B. Dunbar, eds, Antarctic Research Series, American Geophysical Union, Washington, DC.

Tamura, T., K. Ohshima, and S. Nihashi. 2008. Mapping of sea ice production for Antarctic coastal polynyas. Geophysical Research Letters 35, L07606, https://doi.org/10.1029/2007GL032903.

Thomas, D.N., and G.S. Dieckmann, eds. 2010. Sea Ice, 2nd ed. Wiley-Blackwell, Oxford, UK, 640 pp.

Tison, J.-L., C. Haas, M.M. Gowing, S. Sleewaegen, and A. Bernard. 2002. Tank study of physico-chemical controls on gas content and composition during growth of young sea ice. Journal of Glaciology 48:177–191, https://doi.org/10.3189/172756502781831377.

Trevena, A.J., and G.B. Jones. 2006. Dimethylsulphide and dimethylsulphoniopropionate in Antarctic sea ice and their release during sea ice melting. Marine Chemistry 98:210–222, https://doi.org/10.1016/j.marchem.2005.09.005.

Trevena, A.J., G.B. Jones, S.W. Wright, and R.L. van den Enden. 2000. Profiles of DMSP, algal pigments, nutrients and salinity in pack ice from eastern Antarctica. Journal of Sea Research 43:265–273, https://doi.org/10.1016/S1385-1101(00)00012-5.

Trevena, A.J., G.B. Jones, S.W. Wright, and R.L. van den Enden. 2003. Profiles of dimethylsulphoniopropionate (DMSP), algal pigments, nutrients, and salinity in the fast ice of Prydz Bay, Antarctica. Journal of Geophysical Research 108(C5), 3145, https://doi.org/10.1029/2002JC001369.

Untersteiner, N. 1964. Calculations of temperature regime and heat budget of sea ice in the Central Arctic. Journal of Geophysical Research 69:4,755–4,766, https://doi.org/10.1029/JZ069i022p04755.

Vancoppenolle, M., H. Goosse, A. de Montety, T. Fichefet, B. Tremblay, and J.-L. Tison. 2010. Modeling brine and nutrient dynamics in Antarctic sea ice: The case of dissolved silica. Journal of Geophysical Research 115, C02005, https://doi.org/10.1029/2009JC005369.

Webb, E.K., G.I. Pearman, and R. Leuning. 1980. Correction of flux measurements for density effects due to heat and water vapour transfer. Quarterly Journal of the Royal Meteorological Society 106:85–100, https://doi.org/10.1002/qj.49710644707.

Weeks, W., and S.F. Ackley. 1982. The Growth, Structure and Properties of Sea Ice. Cold Regions Research and Engineering Laboratory, ERDC, Hanover, NH, 140 pp.

Weller, G. 1968. Heat-energy transfer through a four-layer system: Air, snow, sea ice, sea water. Journal of Geophysical Research 73:1,209–1,220, https://doi.org/10.1029/JB073i004p01209.

Wettlaufer, J.S., M.G. Worster, and H.E. Hupper. 1997. Natural convection during solidification of an alloy from above with application to the evolution of sea ice. Journal of Fluid Mechanics 344:291–316, https://doi.org/10.1017/S0022112097006022.

Worster, M.G. 1991. Natural convection in a mushy layer. Journal of Fluid Mechanics 224:335–359, https://doi.org/10.1017/S0022112091001787.

Yager, P.L., D.W.R. Wallace, K. Johnson, W.O. Smith, P.J. Minnett, and J.W. Deming. 1995. The northeast water polynya as an atmospheric CO2 sink: A seasonal rectification hypothesis. Journal of Geophysical Research 100:4,389–4,398, https://doi.org/10.1029/94JC01962.

Zappa, C.J., W.R. McGillis, P.A. Raymond, J.B. Edson, E.J. Hintsa, H.J. Zemmelink, J.W.H. Dacey, and D.T. Ho. 2007. Environmental turbulent mixing controls on air-water gas exchange in marine and aquatic systems. Geophysical Research Letters 34, L10601, https://doi.org/10.1029/2006GL028790.

Zemmelink, H.J., B. Delille, J.L. Tison, E.J. Hintsa, L. Houghton, and J.W.H. Dacey. 2006. CO2 deposition over multi-year ice of the western Weddell Sea. Geophysical Research Letters 33, L13606, https://doi.org/10.1029/2006GL026320.

Zemmelink, H.J., J.W.H. Dacey, L. Houghton, E.J. Hintsa, and P.S. Liss. 2008. Dimethylsulfide emissions over the multi-year ice of the western Weddell Sea. Geophysical Research Letters 35, L06603, https://doi.org/10.1029/2007GL031847.

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