Numerical estimations of desalinated seawater modification using Laptev sea shelf seawater as the example

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Abstract

A new model for describing the behavior of the isotope (d18О, dD) parameters of desalinated seawater during freezing is proposed. The model was tested using the Laptev Sea shelf waters, which are actively desalinated by the Lena river input and modified by the freezing and ice removing. It is shown that taking into account the modification process leads to the correction of estimates of the fraction of fresh water input up to 20%. A criterion for determination of model availability is proposed.

About the authors

Е. О. Dubinina

Институт геологии рудных месторождений, петрографии, минералогии и геохимии Российской Академии наук

Author for correspondence.
Email: elenadelta@gmail.com
Russian Federation, Москва

А. Yu. Miroshnikov

Институт геологии рудных месторождений, петрографии, минералогии и геохимии Российской Академии наук

Email: elenadelta@gmail.com
Russian Federation, Москва

S. А. Kossova

Институт геологии рудных месторождений, петрографии, минералогии и геохимии Российской Академии наук

Email: elenadelta@gmail.com
Russian Federation, Москва

M. V. Flint

Институт океанологии им. П.П. Ширшова Российской Академии наук

Email: elenadelta@gmail.com
Russian Federation, Москва

References

  1. Ostlund H.G., Hut G. Arctic Ocean Water Mass Balance From Isotope Data // J. Geophys. Res. 1984. V. 89. P. 6373–6381.
  2. Ekwurzel B., Schlosser P., Mortlock R., Fairbanks R. River Runoff, Sea Ice Meltwater, and Pacific Water Distribution and Mean Residence Times in the Arctic Ocean // J. Geophys. Res. 2001. V. 106 (C5). P. 9075– 9092.
  3. Дубинина Е.О., Коссова С.А., Мирошников А.Ю., Кокрятская Н.М. Изотопная (D, 18O) система- тика вод морей арктического сектора России //
  4. Геохимия. 2014. Т. 11. С. 1041–1052.
  5. Bauch D., Hölemann J., Willmes S., Gröger M., Novikhin A., Nikulina A., Kassens H., Timokhov L. Changes in Distribution of Brine Waters on the Laptev Sea Shelf in 2007 // J. Geophys. Res. 2010. V. 115. C11008.
  6. Bauch D., Hölemann J., Nikitina A., Wegner C., Janout M., Timokhov L.A., Kassens H. Correlation of River Water and Local Sea-Ice Melting on the Laptev Sea Shelf (Siberian Arctic) // J. Geophys. Res. 2013. V. 118. P. 550–561.
  7. Bauch D., Cherniavskaya E., Timokhov L. Shelf Basin Exchange Along the Siberian Continental Margin: Modification of Atlantic Water and Lower Halocline Water // Deep-Sea Res. 2016. V. I. № 115. P. 188–198.
  8. Johnson M.A., Polyakov I.V. The Laptev Sea as a Source for Recent Arctic Ocean Salinity Changes // Geophys. Res. Lett. 2001. V. 28. № 10. P. 2017–2020.
  9. Bauch D., Cherniavskaia E. Water Mass Classification on a Highly Variable Arctic Shelf Region: Origin of Laptev Sea Water Masses and Implications for the Nutrient Budget // J. Geophys. Res. Oceans. 2018. V. 123. https://doi.org/10.1002/2017JC013524
  10. Bauch D., Torres-Valdes S., Polyakov I., Novikhin A., Dmitrenko I., McKay J., Mix. A. Halocline Water Mod- ification and Along-Slope Advection at the Laptev Sea Continental Margin // Ocean Sci. 2014. V. 10. P. 141– 154.
  11. Frew R.D., Dennis P.F., Heywood K.J., et al. The Oxy- gen Isotope Composition of Water Masses in the Northern North Atlantic // Deep-Sea Res. 2000. V. 47. P. 2265–2286.
  12. Bauch D., Hölemann J.A., Dmitrenko I.A., et al. Impact of Siberian Coastal Polynyas on Shelf-Derived Arctic Ocean Halocline Waters // J. Geophys. Res. 2012. V. 117. C00G12.
  13. Thibodeau B., Bauch D., Kassens H., Timokhov L.A. Interannual Variations in River Water Content and Distribution over the Laptev Sea Between 2007 and 2011: The Arctic Dipole Connection // Geophys. Res. Lett. 2014. V. 41. P. 7237–7244.
  14. Craig H., Gordon L. Deuterium and Oxygen-18 Varia- tions in the Ocean and the Marine Atmosphere. In: Stable Isotopes in Oceanographic Studies and Paleo- temperatures. Spoletto, 1965. P. 9–130.
  15. Cox G.F.N., Weeks W.F. Salinity Variations in Sea Ice // J. Glac. 1974. V. 13. № 67. P. 109–120.
  16. Lehmann M., Siegenthaler U. Equilibrium Oxygen- and Hydrogen-Isotope Fractionation Between Ice and Water // J. Glac. 1991. V. 37. P. 23–26.

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