Skip to main content
Log in

Sources and Mechanisms of Seawater Freshening in Tsivolky and Sedov Bays (Novaya Zemlya Archipelago) Based on Isotope Data (δD and δ18О)

  • MARINE CHEMISTRY
  • Published:
Oceanology Aims and scope

Abstract

Three-year monitoring (2014–2016) of isotope parameters (δD and δ18О) of water in Sedov and Tsivolky bays (Novaya Zemlya Archipelago) freshened by water of different origin (continental river runoff, atmospheric precipitation, and water supplied from the archipelago) showed that the degrees of freshening and sources of fresh water components were different for water located at different depths. The variability of the δD and δ18О values was characteristic only of surface layer water containing up to 30% freshwater component. In 2015, surface water of Sedov Bay contained Ob River water, whereas water supplied from Novaya Zemlya predominated in Tsivolky Bay. The deep water of both bays showed evidence of freshening by high-latitude atmospheric precipitation. This water might have been transported via the St. Anna and Voronin troughs. The difference in freshening mechanisms of water in Sedov and Tsivolky bays was determined by the different seafloor morphologies and degrees of free exchange with Kara Sea water.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
Fig. 9.
Fig. 10.

Similar content being viewed by others

REFERENCES

  1. E. O. Dubinina, S. A. Kossova, A. Yu. Miroshnikov, and N. M. Kokryatskaya, “Isotope (δD, δ18O) systematics in waters of the Russian Arctic seas,” Geochem. Int. 55, 1022–1032 (2017).

    Article  Google Scholar 

  2. E. O. Dubinina, S. A. Kossova, A. Yu. Miroshnikov, and R. V. Fyaizullina, “Isotope parameters (δD, δ18O) and sources of freshwater input to Kara Sea,” Oceanology (Engl. Transl.) 57, 31–40 (2017).

  3. A. G. Zatsepin, P. O. Zavialov, V. V. Kremenetskiy, et al., “The upper desalinated layer in the Kara Sea,” Oceanology (Engl. Transl.) 50, 657–667 (2010).

  4. S. A. Kossova, E. O. Dubinina, A. Yu. Miroshnikov, G. I. Nad’yarnykh, and A. V. Bizyaeva, “Isotope parameters (δD, δ18O) and sources of freshwater input in the Novaya Zemlya Archipelago bays,” in Proceedings of the XXI Congress on Geochemistry of Isotopes, Abstracts of Papers (Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow, 2016), pp. 304–306.

  5. V. N. Mikhalenko, S. S. Kutuzov, A. A. Ekaikin, et al., “Isotope composition of snow and ice on glaciers of the Novaya Zemlya Archipelago,” Led Sneg 57, 293–306 (2017).

    Google Scholar 

  6. N. N. Zykin and L. E. Reikhard, “The results of isotope analysis of drifting ices and ocean waters of the Northern Pole according to expeditions Barneo-2013 and Barneo-2014,” in Proceedings of the XXI Congress on Geochemistry of Isotopes, Abstracts of Papers (Vernadsky Institute of Geochemistry and Analytical Chemistry, Moscow, 2016), pp. 298–301.

  7. E. G. Nikiforov and A. O. Shpaikher, The Pattern of Large-Scale Fluctuations of Hydrological Regime of the Arctic Ocean (Gidrometeoizdat, Leningrad, 1980) [in Russian].

    Google Scholar 

  8. V. I. Ferronskii and V. A. Polyakov, Isotopes of Earth’s Hydrosphere (Nauchnyi Mir, Moscow, 2009) [in Russian].

    Google Scholar 

  9. M. V. Flint and S. G. Poyarkov, “Comprehensive research on the Kara Sea ecosystem (128th Cruise of Research Vessel Professor Shtokman),” Oceanology (Engl. Transl.) 55, 657–659 (2015).

  10. F. Aemisegger, S. Pfahl, H. Sodemann, et al., “Deuterium excess as a proxy for continental moisture recycling and plant transpiration,” Atmos. Chem. Phys. 14, 4029–4054 (2014).

    Article  Google Scholar 

  11. D. Bauch, “The distribution of δ18O in the Arctic Ocean: Implications for the freshwater balance of the halocline and the sources of deep and bottom waters,” Ber. Polarforsch. 159, 1–144 (1995).

    Google Scholar 

  12. D. Bauch, H. Erlenkeuser, V. Stanovoy, et al., “Freshwater distribution and brine waters in the southern Kara Sea in summer 1999 as depicted by δ18O results,” in Siberian River Run-Off in the Kara Sea, Ed. by R. Stein, (Elsevier, Amsterdam, 2003), pp. 73–90.

    Google Scholar 

  13. H. Craig and L. Gordon, “Deuterium and oxygen-18 variations in the ocean and the marine atmosphere,” in Proceedings of the Conference “Stable Isotopes in Oceanographic Studies and Paleotemperatures,” Spoletto, Italy, Ed. by E. V. Tongiogi and F. Lishie (Consiglio Nazionale Delle Ricerche Laboratorio di Geologia Nucleare, Pisa, 1965), pp. 9–130.

  14. H. Craig, “Isotopic variation in meteoric waters,” Science 133, 1702–1703 (1961).

    Article  Google Scholar 

  15. W. Dansgaard, “Sable isotopes in precipitation,” Tellus 19, 435–463 (1964).

    Google Scholar 

  16. B. Ekwurzel, P. Schlosser, R. Mortlock, and R. Fairbanks, “River runoff, sea ice meltwater, and Pacific water distribution and mean residence times in the Arctic Ocean,” J. Geophys. Res.: Oceans 106, 9075–9092 (2001).

    Article  Google Scholar 

  17. R. D. Frew, P. F. Dennis, K. J. Heywood, et al., “The oxygen isotope composition of water masses in the northern North Atlantic,” Deep Sea Res., Part I 47, 2265–2286 (2000).

    Article  Google Scholar 

  18. V. V. Gordeev, J. M. Martin, I. S. Sidorov, and M. V. Sidorova, “A reassessment of the Eurasian river input of water, sediment, major elements, and nutrients to the Arctic Ocean,” Am. J. Sci. 296, 664–691 (1996).

    Article  Google Scholar 

  19. I. H. Harms and M. J. Karcher, “Modeling the seasonal variability of hydrography and circulation in the Kara Sea,” J. Geophys. Res.: Oceans 104, 13341–13448 (1999).

    Article  Google Scholar 

  20. R. M. Holmes, J. W. McClelland, S. E. Tank, et al., Arctic Great Rivers Observatory, Water quality dataset, version 20180427, 2018. https://www.arcticgreatrivers.org/ data.

  21. IAEA, Global network of isotopes in precipitations, GNIP database, 2018. https://nucleus.iaea.org/wiser.

  22. L. Merlivat and J. Jouzel, “Global climatic interpretation of the deuterium excess-oxygen 18 relationship for precipitation,” J. Geophys. Res.: Oceans 84, 5029–5033 (1979).

    Article  Google Scholar 

  23. H. G. Ostlund and G. Hut, “Arctic Ocean water mass balance from isotope data,” J. Geophys. Res. 89, 6373–6381 (1984).

    Article  Google Scholar 

  24. V. K. Pavlov and S. L. Pfirman, “Hydrodynamic structure and variability of the Kara Sea: Implications for pollutant distribution,” Deep Sea Res., Part II 42, 1369–1390 (1995).

    Article  Google Scholar 

  25. P. Schlosser, D. Bauch, R. Fairbanks, and G. Bonisch, “Arctic river-runoff: Mean residence time on the shelves and in the halocline,” Deep Sea Res., Part I 41, 1053–1068 (1994).

    Article  Google Scholar 

  26. A. I. Shiklomanov, R. M. Holmes, J. W. McClelland, et al., Arctic Great Rivers Observatory. Discharge dataset, version 20180523, 2018. https://www.arcticrivers. org/data.

Download references

Funding

The isotope studies were supported by the Russian Foundation for Basic Research (project nos. 18-05-00740, 18-05-60246). Development of approaches to interpreting complexly freshened seawater was supported by the Russian Science Foundation (project no. 18-17-00089).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to E. O. Dubinina.

Additional information

Translated by A. Rylova

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dubinina, E.O., Kossova, S.A. & Miroshnikov, A.Y. Sources and Mechanisms of Seawater Freshening in Tsivolky and Sedov Bays (Novaya Zemlya Archipelago) Based on Isotope Data (δD and δ18О). Oceanology 59, 836–847 (2019). https://doi.org/10.1134/S0001437019060043

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0001437019060043

Keywords:

Navigation