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Serra, Nuno; Käse, Rolf H.; Köhl, Armin; Stammer, Detlef; Quadfasel, Detlef (2010)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Numerical simulations of the Atlantic and Arctic Oceans using an ocean-sea ice model are analysed with respect to interannual-to-decadal variability (1948–2008) of the dense water overflows east and west of Iceland. Besides the good agreement between observed and simulated Denmark Strait and Faroe-Bank Channel overflows, the model shows an antiphase relation between both transports at time scales of 3–10 yr. The analysis of wind stress curl over the Nordic Seas suggests that the phase relation is locally forced. The main mode of atmospheric variability in the Atlantic reinforces the dense overflow west of Iceland during positive phases of the North Atlantic Oscillation (NAO) and decreases it during negative phases. East of Iceland the overflow is decreased during positive phases of the NAO and increased during negative phases. After the mid-1990s, the antiphase relation is less clear due to a reduction of wind stress curl variance and a change in the production of dense water in the Nordic Seas. In that period, the Norwegian Sea experienced a reduction of its cyclonicity, leading to the export of a surplus of dense water across the Faroe-Shetland Channel. The forcing of the gyre variability is attributed to large-scale wind stress curl changes and to shifts of convection regimes linked to Arctic-Nordic Seas dense water exchange modifications at Fram Strait. Simulated sea surface height variability is highly correlated with the dense water volume in the Greenland and Norwegian Seas gyres, implying that altimetric measurements are good indicators of dense water content in the Nordic Seas and therefore provide a potential for monitoring the reservoirs and explain/anticipate changes in the overflows.
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    • Aagaard, K., Swift, J. and Carmack, E. 1985. Thermohaline circulation in the Arctic Mediterranean Seas. J. Geophys. Res. 90(C3), 4833- 4846.
    • Biastoch, A., Ka¨se, R. and Stammer, D. 2003. The sensitivity of the Greenland-Scotland Ridge overflow to forcing changes. J. Phys. Oceanogr. 33, 2307-2319.
    • Borena¨s, K., Lake, I. and Lundberg, P. 2001. On the intermediate water masses of the Faroe-Bank Channel overflow. J. Phys. Oceanogr. 31, 1904-1914.
    • Borena¨s, K. and Lundberg, P. 2004. The Faroe-Bank Channel deep-water overflow. Deep-Sea Res. II 51, 335-350.
    • Boyer, T., Levitus, S., Garcia, H., Locarnini, R., Stephens, C. and coauthors. 2005. Objective analyses of annual, seasonal, and monthly temperature and salinity for the World Ocean on a 0.25◦ grid. Int. J. Climatol. 25(7), 931-945.
    • Dickson, R., Dye, S., Jonsson, S., Ko¨hl, A., Macrander, A. and coauthors. 2008. The overflow flux west of Iceland: variability, origins and forcing. In: Arctic-Subarctic Ocean Fluxes: Defining the Role of Northern Seas in Climate (eds R. Dickson, J. Meincke and P. Rhines), Springer, Dordrecht, The Netherlands, 443-474.
    • Dickson, R., Osborn, T., Hurrell, J., Meincke, J., Blindheim, J. and co-authors. 2000. The Arctic Ocean response to the North Atlantic Oscillation. J. Climate 13, 2671-2696.
    • Eldevik, T., Nilsen, J., Iovino, D., Olsson, K., Sandø, A. and co-authors. 2009. Observed sources and variability of Nordic Seas overflow. Nat. Geosci. 2, 406-410.
    • Fekete, B., Vorosmarty, C. and Grabs, W. 1999. Global, composite runoff fields based on observed river discharge and simulated water balances, Global Runoff Data Center Tech. Rep. 22, Koblenz, Germany.
    • Gerdes, R., Hurka, J., Karcher, M., Kauker, F. and Koberle, C. 2005. Simulated history of convection in the Greenland and Labrador Seas, 1948-2001. In: The Nordic Seas: An Integrated Perspective Volume 158 (eds H. Drange, T. Dokken, T. Furevik, R. Gerdes and W. Berger), AGU Geophysical Monograph Series, 221-238.
    • Gerdes, R., Karcher, M., Kauker, F. and Schauer, U. 2003. Causes and development of repeated Arctic Ocean warming events. Geophys. Res. Lett. 30, 1980. doi:10.1029/2003GL018080.
    • Gerdes, R. and Schauer, U. 1997. Large-scale circulation and water mass distribution in the Arctic Ocean from model results and observations. J. Geophys. Res. 102, 8467-8483.
    • Girton, J., Pratt, L., Sutherland, D. and Price, J. 2006. Is the Faroe Bank Channel overflow hydraulically controlled?. J. Phys. Oceanogr. 36, 2340-2349.
    • Gouretski, V. and Koltermann, K. 2004. WOCE Global Hydrographic Climatology, Berichte des Bundesamt fu¨r Seeschifffart und Hydrographie (BSH) nr. 35/2004, Hamburg und Rostock, Germany, p. 52.
    • Ha¨kkinen, S. and Rhines, P. 2004. Decline of subpolar North Atlantic circulation during the 1990s. Science 304, 555-559.
    • Hansen, B. and Østerhus, S. 12000. North Atlantic-Nordic Seas exchanges. Progr. Oceanogr. 45, 109-208.
    • Hansen, B. and Østerhus, S. 2007. Faroe Bank Channel overflow 1995- 2005. Progr. Oceanogr. 75, 817-856.
    • Isachsen, P., LaCasce, J., Mauritzen, C. and Ha¨kkinen, S. 2003. Wind-driven variability of the large-scale recirculating flow in the Nordic Seas and Arctic Ocean. J. Phys. Oceanogr. 33, 2534- 2550.
    • Isachsen, P., Mauritzen, C. and Svendsen, H. 2007. Dense water formation in the Nordic Seas diagnosed from sea surface buoyancy fluxes. Deep-Sea Res. 54, 22-41.
    • Jeansson, E., Jutterstrom, S., Rudels, B., Anderson, L., Olsson, K. and co-authors. 2008. Sources to the East Greenland Current and its contribution to the Denmark Strait overflow. Progr. Oceanogr. 78, 12-28.
    • Jonsson, S. and Valdimarsson, H. 2004. A new path for the Denmark Strait overflow water from the Iceland Sea to Denmark Strait. Geophys. Res. Lett. 31, L03305. doi:10.1029/2003GL019214.
    • Jungclaus, J., Haak, H., Latif, M. and Milolajewicz, U. 2005. ArcticNorth Atlantic interactions and multidecadal variability of the Meridional Overturning Circulation. J. Climate 18, 4013-4031.
    • Kalnay, E., Kanamitsu, M., Kistler, R. and co-authors. 1996. The NCEP/NCAR 40-year reanalysis project. Bull. Am. Meteor. Soc. 77, 437-470.
    • Karcher, M., Kauker, F., Gerdes, R., Hunke, E. and Zhang, J. 2007. On the dynamics of Atlantic Water circulation in the Arctic Ocean. J. Geophys. Res. 112, C04S02. doi:10.1029/2006JC003630.
    • Karstensen, J., Schlosser, P., Wallace, D., Bullister, J. and Blindheim, J. 2005. Water mass transformation in the Greenland Sea during the 1990s. J. Geophys. Res. 110, C07022. doi:10.1029/2004JC002510.
    • Ka¨se, R. 2006. A Riccati model for Denmark Strait overflow variability. Geophys. Res. Lett. 33, L21S09. doi:10.1029/2006GL026915.
    • Ka¨se, R., Girton, J. and Sanford, T. 2003. Structure and variability of the Denmark Strait overflow: model and observations. J. Geophys. Res. 108, 3181. doi:10.1029/2002JC001548.
    • Ka¨se, R. and Oschlies, A. 2000. Flow through Denmark Strait. J. Geophys. Res. 105, 28527-28546.
    • Ka¨se, R., Serra, N., Ko¨hl, A. and Stammer, D. 2009. Mechanisms for the forcing of dense water pathways in the Nordic Seas. J. Geophys. Res. 114, C01013. doi:10.1029/2008JC004916.
    • Kauker, F., Gerdes, R., Karcher, M. and Ko¨berle, C. 2005. Impact of North Atlantic Current changes on the Nordic Seas and the Arctic Ocean. J. Geophys. Res. 110, C12002. doi:10.1029/2004JC002624.
    • Ko¨hl, A., Ka¨se, R., Stammer, D. and Serra, N. 2007. Causes of changes in the Denmark Strait overflow. J. Phys. Oceanogr. 37, 1678-1696.
    • Ko¨hl, A. and Stammer, D. 2009. Variability of the meridional overturning in the North Atlantic from the 50-year GECCO state estimation. J. Phys. Oceanogr. 38, 1913-1930.
    • Large, W., McWilliams, J. and Doney, S. 1994. Ocean vertical mixing: a review and a model with a nonlocal boundary layer parameterization. Rev. Geophys. 32, 363-403.
    • Lindsay, R., Zhang, J., Schweiger, A., Steele, M. and Stern, H. 2009. Arctic sea ice retreat in 2007 follows thinning trend. J. Climate 22, 165-176.
    • Macrander, A., Ka¨se, R., Send, U., Valdimarsson, H. and Jonsson, S. 2007. Spatial and temporal structure of the Denmark Strait overflow revealed by acoustic observations. Ocean Dyn. 57, 75-89.
    • Macrander, A., Send, U., Valdimarsson, H., Jonsson, S. and Ka¨se, R. 2005. Interannual changes in the overflow from the Nordic Seas into the Atlantic Ocean through Denmark Strait. Geophys. Res. Lett. 32, L06606. doi:10.1029/2004GL021463.
    • Malmberg, S. and Jonsson, S. 1997. Timing of deep convection in the Greenland and Iceland Seas. ICES J. Mar. Sc. 54, 300-309.
    • Marshall, J., Adcroft, A., Hill, C., Perelman, L. and Heisey, C. 1997. A finite-volume, incompressible Navier Stokes model for studies of the ocean on parallel computers. J. Geophys. Res. 102, 5753-5766.
    • Maslowski, W., Marble, D., Walczowski, W., Schauer, U., Clement, J. and co-authors. 2004. On climatological mass, heat and salt transport through the Barents Sea and Fram Strait from a pan-Arctic coupled ice-ocean model simulation. J. Geophys. Res. 109, C03032. doi:10.1029/2001JC001039.
    • Maslowski, W., Newton, B., Schlosser, P., Semtner, A. and Martinson, D. 2000. Modeling recent climate variability in the Arctic Ocean. Geophys. Res. Lett. 27, 3743-3746.
    • Mauritzen, C. 1996a. Production of dense overflows feeding the North Atlantic across the Greenland-Scotland Ridge. Part 1: evidence for a revised circulation scheme. Deep-Sea Res. 43, 769-806.
    • Mauritzen, C. 1996b. Production of dense overflows feeding the North Atlantic across the Greenland-Scotland Ridge. Part 2: an inverse model. Deep-Sea Res. 43, 807-835.
    • Mauritzen, C., Price, J., Sanford, T. and Torres, D. 2005. Circulation and mixing in the Faroese Channels. Deep-Sea Res. 52, 883- 913.
    • Meincke, J., Rudels, B. and Friedrich, H. 1997. The Arctic Ocean-Nordic Seas thermohaline system. ICES J. Mar. Sc. 54, 283-299.
    • Messias, M., Watson, A., Johannessen, T. and co-authors. 2008. The Greenland Sea tracer experiment 1996-2002: horizontal mixing and transport of Greenland Sea Intermediate Water. Progr. Oceanogr. 78, 85-105.
    • Murray, R. 1996. Explicit generation of orthogonal grids for ocean models. J. Comput. Phys. 126, 251-273.
    • Nikolopoulos, A., Borena¨s, K., Hietala, R. and Lundberg, P. 2003. Hydraulic estimates of Denmark Strait overflow. J. Geophys. Res. 108, 3095. doi:10.1029/2001JC001283.
    • Nøst, O. and Isachsen, P. 2003. The large-scale time-mean ocean circulation in the Nordic Seas and Arctic Ocean estimated from simplified dynamics. J. Mar. Res. 61, 175-210.
    • Olsen, S., Hansen, B., Quadfasel, D. and Østerhus, S. 2008. Observed and modelled stability of overflow across the Greenland-Scotland Ridge. Nature 455, 519-522.
    • Olsen, S. and Schmith, T. 2007. North Atlantic-Arctic Mediterranean exchanges in an ensemble hindcast experiment. J. Geophys. Res. 112, C04010. doi:10.1029/2006JC003838.
    • Orvik, K. and Skagseth, Ø. 2003. The impact of the wind stress curl in the North Atlantic on the Atlantic inflow to the Norwegian Sea toward the Arctic. Geophys. Res. Lett. 30, 1884. doi:10.1029/2003GL017932.
    • Østerhus, S. and Gammelsrød, T. 1999. The abyss of the Nordic Seas is warming. J. Climate 12, 3297-3304.
    • Proshutinsky, A. and Johnson, M. 1997. Two circulation regimes of the wind-driven Arctic Ocean. J. Geophys. Res. 102, 12493-12514.
    • Ronski, S. and Budeus, G. 2005. Time series of winter convection in the Greenland Sea. J. Geophys. Res. 110, C04015. doi:10.1029/2004JC002318.
    • Rudels, B., Fahrbach, E., Meincke, J., Budeus, G. and Eriksson, P. 2002. The East Greenland Current and its contribution to the Denmark Strait overflow. ICES J. Mar. Sc. 59, 1133-1154.
    • Rudels, B., Friedrich, H. and Quadfasel, D. 1999. The Arctic circumpolar boundary current. Deep-Sea Res. 46, 1023-1062.
    • Rudels, B. and Quadfasel, D. 1991. The Arctic Ocean component in the Greenland-Scotland overflow. ICES CM 1991/C 30, 21 pp.
    • Sandø, A., and Furevik, T. 2008. Relation between the wind stress curl in the North Atlantic and the Atlantic inflow to the Nordic Seas. J. Geophys. Res. 113, C06028. doi:10.1029/2007JC004236.
    • Schauer, U., Fahrbach, E., Østerhus, S. and Rohardt, G. 2004. Arctic warming through the Fram Strait: oceanic heat transport from 3 years of measurements. J. Geophys. Res. 109, C06026. doi:10.1029/2003JC001823.
    • Smith, T., Reynolds, R., Peterson, T. and Lawrimore, J. 2008. Improvements to NOAA's historical merged land-ocean surface temperature analysis (1880-2006). J. Climate 21, 2283-2296.
    • Tanhua, T., Olsson, K. and Jeansson, E. 2008. Tracer evidence of the origin and variability of Denmark Strait Overflow Water. In: ArcticSubarctic Ocean Fluxes: Defining the Role of Northern Seas in Climate (eds R. Dickson, J. Meincke and P. Rhines), Springer, Dordrecht, The Netherlands, 475-503.
    • Wilkenskjeld, S. and Quadfasel, D. 2005. Response of the Greenland-Scotland overflow to changing deep water supply from the Arctic Mediterranean. Geophys. Res. Lett. 32, L21607. doi:10.1029/2005GL024140.
    • Zhang, J. and Rothrock, D. 2000. Modelling Arctic sea ice with an efficient plastic solution. J. Geophys. Res. 105, 3325-3338.
    • Zhang, X., Sorteberg, A., Zhang, J., Gerdes, R. and Comiso, J. 2008. Recent radical shifts of atmospheric circulations and rapid changes in Arctic climate system. Geophys. Res. Lett. 35, L22701. doi:10.1029/2008GL035607.
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