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Modeling the Black Sea Deep Circulation with ERA-Interim Forcing in Summer 2013

  • O. A. DymovaEmail author
  • N. A. Miklashevskaya
  • N. V. Markova
Conference paper
Part of the Springer Proceedings in Earth and Environmental Sciences book series (SPEES)

Abstract

The results of a prognostic numerical experiment on simulation of the Black Sea circulation are given for warm period of 2013. The MHI hydrophysical ocean model and ERA-Interim atmospheric forcing are used for the modeling. Comparison of observed and simulated temperature and salinity is carried out. A satisfactory agreement between measured and simulated data is obtained. The greatest attention is paid to the deep Black Sea circulation structure. Hydrophysical fields at the depths below the main pycnocline are studied in detail. It is confirmed that the field of deep currents contains vortex formations and flows that qualitatively and quantitatively differ from the surface ones. There are a number of vortexes that form not at the sea surface but near the low boundary of the main pycnocline (at depths of 150–300 m) and propagate down to the bottom without weakening. As well, in summer 2013, quasi-periodic narrow deep currents propagating anticyclonically are generated in some regions along the Black Sea continental slope.

Keywords

Black Sea Modeling Deep circulation Currents Vortexes Temperature Salinity Measurements 

Notes

Acknowledgments

The numerical experiment was carried out within the framework of the State assignment theme No. 0827-2018-0003. The data comparison was carried out within the framework of the State assignment theme No. 0827-2018-0002.

References

  1. 1.
    Oguz, T., Latun, V.S., Latif, M.A., et al.: Circulation in the surface and intermediate layers of the Black Sea. Deep-Sea Res. 40(8), 1597–1612 (1993)CrossRefGoogle Scholar
  2. 2.
    Morozov, A.N., Lemeshko, E.M.: Experience of the acoustic Doppler measuring instrument of currents (ADCP) use in the Black Sea. Phys. Oceanogr. 16(4), 216–233 (2006)CrossRefGoogle Scholar
  3. 3.
    Bulgakov, N.P., Bulgakov, S.N.: Manifestation of the Black Sea countercurrent in the seawater density and hydrostatic pressure [Proyavlenie Protivotecheniya v Chernom more v polyah plotnosti vody i gidrostaticheskogo davleniya]. Morskoy gidrofizicheskiy zhurnal 4, 63–76 (1995). (in Russian)Google Scholar
  4. 4.
    Bulgakov, S.N., Korotaev, G.K., Whitehead, J.A.: The role of buoyancy fluxes in the formation of a large-scale circulation and stratification of sea water: 1, 2. Izvestiya Atmos. Oceanic Phys. 32(4), 548–564 (1996)Google Scholar
  5. 5.
    Korotaev, G., Oguz, T., Riser, S.: Intermediate and deep currents of the Black Sea obtained from autonomous profiling floats. Deep-Sea Res. II 53(17–19), 1901–1910 (2006)CrossRefGoogle Scholar
  6. 6.
    Markova, N.V., Bagaev, A.V.: Velocities of the Black Sea deep currents estimated from the profiling drifters Argo data. Phys. Oceanogr. 3, 23–35 (2016)Google Scholar
  7. 7.
    Demyshev, S.G., Korotaev, G.K.: Numerical energy–balanced model of the baroclinic ocean currents on a C–grid. In: Numerical Models and Results of Calibration Calculations of Currents in the Atlantic Ocean, pp. 163–231. INM RAS, Moscow (1992). (in Russian)Google Scholar
  8. 8.
    Dee, D.P., Uppala, S.M., Simmons, A.J., et al.: The ERA-Interim reanalysis: configuration and performance of the data assimilation system. Q. J. R. Meteorol. Soc. 137(656), 553–597 (2011)CrossRefGoogle Scholar
  9. 9.
    Argo Data Management. http://www.argodatamgt.org/. Accessed 29 June 2018
  10. 10.
    Titov, V.B.: Morphometric parameters and hydrophysical characteristics of nearshore anticyclonic eddies in the Black Sea. Russ. Meteorol. Hydrol. 4, 52–57 (2002)Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Marine Hydrophysical Institute of RASSevastopolRussian Federation

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