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Warming of the West Spitsbergen Current and sea ice north of Svalbard

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
According to the results of recent research, besides the atmospheric circulation, it is heat transport to the Arctic Ocean (AO) by ocean currents, the West Spitsbergen Current (WSC) in particular, that is playing a significant role in the process of Arctic warming. Data collected by the Institute of Oceanology, Polish Academy of Sciences (IO PAS), in the Norwegian and Greenland Seas, and Fram Strait during the last 20 years reveal considerable changes in the amount of heat transported by the WSC into the Arctic Ocean. An increase in Atlantic Water (AW) temperature and the intensification of heat transport were observed in 2004-06; after this period, both parameters decreased. The aim of this study was to find out whether the fluctuations in heat input by the WSC have influenced the sea-ice distribution around Svalbard. In fact they do, but oceanic heat transport should nonetheless be regarded as just one of many processes influencing sea-ice behaviour.
Słowa kluczowe
Czasopismo
Rocznik
Strony
147--164
Opis fizyczny
bibliogr. 16 poz., tab., wykr.
Twórcy
autor
  • Physical Oceanography Department, Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland;, walczows@iopan.gda.pl
Bibliografia
  • 1.Cokelet E.D., Tervalon N., Bellingham J. G., 2008, Hydrography of the West Spitsbergen Current, Svalbard Branch: Autumn 2001, J. Geophys. Res., 113, C01006, doi:10.1029/2007JC004150.
  • 2.Hansen B., Osterhus S., 2000, North Atlantic-Nordic sea exchanges, Prog. Oceanogr., 45 (2), 109-208.
  • 3.Hansen B., Osterhus S., Turrel W., Jonsson S., Valdimersson H., Hátún H., Olsen S., 2008, The inflow of Atlantic water, heat and salt to the Nordic Seas across the Greenland-Scotland Ridge, [in:] Arctic-Subarctic ocean fluxes, R.R. Dickson, I. Meincke & P. Rhines (eds.), Springer, Dordrecht, 15-43.
  • 4.Jósson S., Briem J., 2003, Flow of Atlantic water west of Iceland and onto the north Icelandic shelf, ICES Mar. Sci. Symp., 219, 326-328.
  • 5.Manley T. O., 1995, Branching of Atlantic Water within the Greenland-Spitsbergen Passage: an estimate of recirculation, J. Geophys. Res., 100 (C10), 20627 -20634.
  • 6.Orvik K.A., Niiler P., 2002, Major pathways of Atlantic water in the northern North Atlantic and Nordic Seas toward Arctic, Geophys. Res. Lett., 29 (19), 1896, L015002, doi:10.1029/2002GL015002.
  • 7.Polyakov I. V., Beszczynska A., Carmack E.C., Dmitrenko I.A., Fahrbach E., Frolov I.E., Gerdes R., Hansen E., Holfort J., Ivanov V.V., Johnson M. A., Karcher M., Kauker F., Morison J., Orvik K.A., Schauer U., Simmons H.L., Skagseth O., Sokolov V.T., Steele M., Timokhov L. A., Walsh D., Walsh J.E., 2005, One more step toward a warmer Arctic, Geophys. Res. Lett., 32, L17605, doi:10.1029/2005GL023740.
  • 8.Rudels B., Fredrich H. J., Quatfasel D., 1999, The Arctic circumpolar boundary current, Deep-Sea Res. Pt. II, 46 (6-7), 1023-1062.
  • 9.Schauer U., Beszczynska-Moeller A., Walczowski W., Fahrbach E., Piechura J., Hansen E., 2008, Variation of measured heat flow through the Fram Strait between 1997 and 2006, [in:] Arctic-Subarctic ocean fluxes, R.R. Dickson, I. Meincke & P. Rhines (eds.), Springer, Dordrecht, 15-43.
  • 10.Skagseth O., Orvik K.A., Furevik T., 2004, Coherent variability of the Norwegian Atlantic Slope Current derived from TOPEX/ERS altimeter data, Geophys. Res. Lett., 31, L14304, doi:10.1029/2004GL020057.
  • 11.Spreen G., Kaleschke L., Heygster G., 2008, Sea ice remote sensing using AMSR-E 89-GHz channels, J. Geophys. Res., 113, C02S03, doi:10.1029/2005JC003384.
  • 12.Walczowski W., 2009, Woda Arktyczna w Morzach Nordyckich - właściwości, zmienność, znaczenie klimatyczne, Rozpr. monogr. 22, Inst. Oceanol. PAN, Sopot, 241 pp.
  • 13.WalczowskiW., Piechura J., 2006, New evidence of warming propagating toward the Arctic Ocean, Geophys. Res. Lett., 33, L12601, doi:10.1029/2006GL025872.
  • 14.Walczowski W., Piechura J., 2007, Pathways of the Greenland Sea warming, Geophys. Res. Lett., 34, L10608, doi:10.1029/2007GL029974.
  • 15.Walczowski W., Piechura J., Osiński R., Wieczorek P., 2005, The West Spitsbergen Current volume and heat transport from synoptic observations in summer, Deep-Sea Res. Pt. I, 52 (8), 1374-1931.
  • 16.Whelan J., Maslowski W., Clement Kinney J. L., Jakacki J., 2007, Understanding recent variability in the Arctic Sea ice thickness and volume - synthesis of model results and observations, Eos Trans. AGU, 88 (52), Fall Meet. Suppl., Abstract C22A-06.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUS5-0020-0031
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