We study bottom circulation in the Norwegian Sea in the region of nuclear submarine wreck. A numerical model INMOM with a high vertical and horizontal resolution in the bottom layers is applied for the estimates of bottom velocities and direction of currents as well as their stability. The model revealed that the currents in the bottom layer of the Norwegian Sea are not strong. The fluctuations of currents with periods of 5--6 days and 12 hours are several times greater than the mean currents in the region, which are of the order of 1~cm/s excluding the region of the Bear Island Trough.
Norwegian Sea, bottom currents, spreading of pollution, numerical modeling, moored measurements
1. Aleinik, D. L., Byshev, V. I., Shcherbinin, A. D. Measured currents in the near-bottom layer of the Norwegian Sea within the region of catastrophe of the atomic submarine Komsomolets, // Doklady Earth Sciences, 1999. - v. 369 - no. 9 - p. 1393.
2. Aleinik, D. L., Byshev, V. I., Shcherbinin, A. D. Water Dynamics in the Norwegian Sea at the site of the accident of the Komsomolets nuclear submarine, // Oceanology, 2002. - v. 42 - no. 1 - p. 7.
3. Blindheim, J., Foyn, L., Martinsen, E.A., Svendsen, E., S\aetre, R. The sunken nuclear submarine in the Norwegian Sea #x2013; A potential environmental problem? Research report - Bergen: Institute of Marine Research., 1994.
4. Brydon, D., San, S., Bleckb, R. A new approximation of the equation of state for seawater, suitable for numerical ocean models, // J. Geophys. Res., 1999. - v. 104 - no. C1 - p. 1537.
5. Diansky, N. A., Bagno, A. V., Zalesny, V. B. Sigma model of global ocean circulation and its sensitivity to variations in wind stress, // Izv., Atmos. Ocean. Phys., 2002. - v. 38 - no. 4 - p. 537.
6. Diansky, N. A., Fomin, V. V. , Zhokhova, N. V. , Korshenko, A. N. Simulations of currents and pollution transport in the coastal waters of Big Sochi, // Izv., Atmos. Ocean. Phys., 2013. - v. 49 - no. 6 - p. 611.
7. Filyushkin, B. N., Sokolovskiy, M. A., Lebedev, K. V. Evolution of an intrathermocline lens over the Lofoten Basin // The Ocean in Motion, M. G. Velarde, R. Yu. Tarakanov, A. V. Marchenko eds.: Springer Oceanography., 2018. - p. 333.
8. Fomin, L. M., Shcherbinin, A. D., Vinogradova, K. G., Lebedev, K. V., et al. Currents in the Northeastern Part of the Norwegian Sea from the Results of Direct Measurements // Oceanological Studies and Underwater and Engineering Operations at the Site of the Accident of the Komsomolets Nuclear Submarine, M. E. Vinogradov, A. M. Sagalevich, and S. V. Khetagurov eds. - Moscow: Nauka., 1996. - p. 263.
9. Frey, D. I., Novigatsky, A. N., Kravchishina, M. D., Morozov, E. G. Water structure and currents in the Bear Island Trough in July#x2013;August 2017, // Russ. J. Earth. Sci., 2017. - v. 17 - p. 263.
10. Locarnini, R. A., Mishonov, A. V., Antonov, J. I., et al. World Ocean Atlas 2009, Vol. 1: Temperature - Washington, D.C: U.S. Government Printing Office., 2010.
11. Lukashin, V. N., Shcherbinin, A. D. Hydrological properties, suspended matter, and particulate fluxes in the water column of the Bear Island Trough, // Oceanology, 2007. - v. 47 - no. 1 - p. 68.
12. Marchuk, G. I., Rusakov, A. S. , Zalesny, V. B. , Diansky, N. A. Splitting numerical technique with application to the high resolution simulation of the Indian ocean circulation, // Pure Appl. Geophys., 2005. - v. 162 - p. 1407.
13. Sidorova, A. N., Shcherbinin, A. D. Intra-annual variability of the thermohaline structure and circulation in the Barents Sea based on the results of model calculations, // Oceanology, 2004. - v. 44 - no. 5 - p. 629.
14. Vinogradov, M. E., et al. eds. Oceanological Studies and Underwater and Engineering Operations at the Site of the Accident of the Komsomolets Nuclear Submarine - Moscow: Nauka., 1996.
15. Zalesny, V. B., Diansky, N. A. , Fomin, V. V. , Moshonkin, S. N. , Demyshev, S. G. Numerical model of the circulation of the Black Sea and the Sea of Azov, // Russian Journal of Numerical Analysis and Mathematical Modelling, 2012. - v. 27 - no. 1 - p. 95.
