Abstract
An area of about 40000 km2 of desalinated upper layer waters with a salinity of less than 25 psu was found during cruise 54 of the R/V Akademik Mstislav Keldysh in the southwestern part of the Kara Sea (September 2007). Close to the boundary of this region located near the eastern coast of Novaya Zemlya, the salinity was less than 16 psu. The thickness of the desalinated layer was about 10 m. The results of the chemical analysis revealed that the observed desalination of the sea water was produced, first of all, by the Yenisei River, while the contribution of the Ob River’s waters was secondary. However, the most desalinated region near the eastern coast of Novaya Zemlya was separated from the Ob-Yenisei estuary and corresponded to a quasi-isolated lens. It is likely that the formation of this lens, as well as the major part of the desalinated upper layer waters, occurred in June when the flood of the Yenisei was maximal, while the further drift of the desalinated waters to the west of the Ob-Yenisei estuary was forced by the prevailing northern wind. The additional desalination (by 2–3 psu and even more) of the upper layer waters near the eastern coast of Novaya Zemlya might be related to the melting of the Novozemelskiy ice massif. The regularities of the temporal evolution of the upper desalinated layer, as well as the influence of this layer on the hydrological structure and dynamics of the southwestern Kara Sea, are discussed.
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References
V. I. Burenkov and A. P. Vasil’kov, “The Effect of Continental Runoff on the Spatial Distribution of Hydrological Characteristics of Waters of the Kara Sea,” Okeanologiya 34(5), 652–661 (1994).
A. D. Dobrovol’skii and B. S. Zalogin, Seas of the SSSR (Mosk. Gos. Univ., Moscow, 1982) [in Russian].
V. M. Zhurbas, A. G. Zatsepin, Yu. V. Grigor’eva, et al., “Water Circulation and Characteristics of Currents of Different Scales in the Upper Layer of the Black Sea from Drifter Data,” Okeanologiya 44(1), 34–48 (2004) [Oceanology 44 (1), 30–43 (2004)].
A. G. Zatsepin, E. G. Morozov, V. T. Paka, et al., “Water Circulation in the Southwestern Part of the Kara Sea in September 2007,” Okeanologiya 50(5), 683–697 (2010).
P. N. Makkaveev, P. A. Stunzhas, Z. S. Mel’nikova et al., “Characteristics of Composition and Distribution of the Biogenic Continental Runoff in the Western Part of the Kara Sea,” Okeanologiya 50(5), 730–739 (2010).
V. N. Moretskii, “Distribution and Dynamics of Desalinated Waters of the Kara Sea,” Tr. Arkt. Antarkt. Nauchno-Issled. Inst. 389, 33–35 (1985).
V. P. Rusanov and A. N. Vasil’ev, “Distribution of River Waters in the Kara Sea according to Hydrochemical Determination Data,” Tr. Arkt. Antarkt. Nauchno-Issled. Inst. 323, 188–196 (1976).
M. V. Flint, A. G. Zatsepin, N. V. Kucheruk, et al., “Multidisciplinary Studies of the Ecosystem of the Kara Sea: Cruise 54 of R/V Akademik Mstislav Keldysh,” Okeanologiya 48(6), 947–951 (2008) [Oceanology 48 (6), 883–887 (2008)].
H. Deubel, M. Engel, Fetszer et al., Siberian River Run-Off in the Kara Sea, Ed. by R. Stain et al. (Elsevier, Utrecht, 2003), pp. 237–265.
J. R. Garratt, “Review of Drag Coefficients over Oceans and Continents,” Month. Weath. Rev. 105, 915–929 (1977).
R. W. Griffiths and E. S. Hopfinger, “The Structure of Mesoscale Turbulence and Horizontal Spreading of Ocean Fronts,” Deep-Sea Res. 31(3), 245–269 (1984).
P. S. Guest and K. L. Davidson, “The Effect of Observed Ice Conditions on the Drag Coefficient in the Summer East Greenland Sea Marginal Ice Zone,” J. Geophys. Res. 92(C7), 8411–8427 (1987).
I. H. Harms and M. J. Karcher, “Modeling the Seasonal Variability of Circulation and Hydrography in the Kara Sea,” J. Geophys. Res. 104(C6), 13431–13448. (1999).
I. H. Harms and M. J. Karcher, “Kara Sea Freshwater Dispersion and Export in the Late 1990s,” J. Geophys. Res. 110(C08007), doi: 10.1029/2004JC002744 (2005).
O. M. Johannessen, V. Yu. Alexandrov, I. E. Frolov, et al., “Remote Sensing of Sea Ice in the Northern Sea Route: Studies and Applications,” Springer (2007).
D. R. Johnson, T. A. McClimans, S. E. King, and O. Grenness, “Fresh Water Masses in the Kara Sea during Summer,” J. Mar. Sys, No. 12, 127–145 (1997).
T. A. McClimans, D. R. Johnson, M. Krosshavn, and S. E. King, “Transport Processes in the Kara Sea,” J. Geophys. Res. 105(C6), 14121–14139 (2000).
V. K. Pavlov and S. L. Pfirman, “Hydrogaphic Structure and Variability of the Kara Sea: Implications for Pollutant Distribution,” Deep-Sea Res. (II) 42(6), 1369–1390 (1995).
S. Pivovarov, R. Schlitzer, and A. Novikhin, in Siberian River Run-Off in the Kara Sea, Ed. by R. Stain et al. (Elsevier, Utrecht,, 2003), pp. 9–25.
R. T. Pollard and R. C. Millard, “Comparison between the Observed and Simulated Wind-Generated Inertial Oscillations,” Deep-Sea Res. 17(4), 813–821 (1970).
E. J. Strang and H. J. S. Fernando, “Entrainment and Mixing in Stratified Shear Flows,” J. Fluid Mech. 428, 349–386 (2001).
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Original Russian Text © A.G. Zatsepin, P.O. Zavialov, V.V. Kremenetskiy, S.G. Poyarkov, D.M. Soloviev, 2010, published in Okeanologiya, 2010, Vol. 50, No. 5, pp. 698–708.
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Zatsepin, A.G., Zavialov, P.O., Kremenetskiy, V.V. et al. The upper desalinated layer in the Kara Sea. Oceanology 50, 657–667 (2010). https://doi.org/10.1134/S0001437010050036
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DOI: https://doi.org/10.1134/S0001437010050036