Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 7, pp. 280-296
Investigation of coastal surface currents in the South-East Baltic based on concurrent drifter and satellite observations and numerical modeling
M.N. Golenko
1 , E.V. Krayushkin
2 , O.Yu. Lavrova
2 1 P.P. Shirshov Institute of Oceanology RAS, Moscow, Russia
2 Space Research Institute RAS, Moscow, Russia
Accepted: 05.12.2017
DOI: 10.21046/2070-7401-2017-14-7-280-296
The results of field work carried out concurrently with satellite imaging in the summer periods of 2015–2016 in the South-East Baltic near the Sambian Peninsula are presented. Analysis and numerical simulation of the trajectories of two drifters released into the sea are performed. It is shown that the character of the drift of Lagrangian buoys can differ substantially from year to year, which is largely due to wind conditions and the intensity of vortex dynamics in the region. Numerical simulation of the Lagrangian drifters’ paths is carried out based on the Princeton Ocean Model (POM) adapted to the South-East Baltic and enhanced with a unit for calculating the trajectories of Lagrangian particles. In most cases, a close correspondence between the trajectories of model Lagrangian particles and drifters is obtained. Areas and meteorological conditions are determined in which drifters (particles) are mainly subject to advective displacement, while inertial oscillations do not significantly influence them. Also, we defined the conditions when inertial oscillations predominate, so that the particles get entrained into a drifting pattern of closed loops with diameters of ~2–6 km (in the near-surface layer). The diameter and shape of the loops essentially depend on background currents.
Keywords: concurrent experiments, surface circulation, Lagrangian drifters, numerical simulation, POM, South-East Baltic
Full textReferences:
- Ginzburg A.I., Bulycheva E.V., Kostianoy A.G., Solovyev D.M., O roli vihrey v rasprostranenii neftyanyh zagryazneniy po akvatorii Yugo-Vostochnoy Baltiki (po dannym sputnikovogo monitoringa) (On the role of vortices in the transport of oil pollution in the Southeastern Baltic Sea (according to satellite monitoring), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2015, Vol. 12, No. 3, pp. 149–157.
- Golenko N.N., Golenko M.N., Shchuka S.A., Observation and modeling of upwelling in the Southeastern Baltic, Oceanology, 2009, Vol. 49, No. 1, pp. 15–21.
- Golenko M.N., Golenko N.N., Structure of dynamic fields in the Southeastern Baltic during wind forcings that cause upwelling and downwelling, Oceanology, 2012, Vol. 52, No. 5, pp. 604–616.
- Golenko M.N., Golenko N.N., Issledovaniye rasprostraneniya passivnoy primesi i lagranzhevyh chastits v pribrezhnoy zone Yugo-Vostochnoy chasti Baltiyskogo moray (Investigation of the propagation of passive additives and Lagrangian particles in the coastal area of South-East Baltic), Vestnik Baltiyskogo Federal’nogo universiteta im. I. Kanta, 2014, Seriya: Estestvennye nauki, Issue 1, pp. 42–50.
- Zhurbas V.M., Elken Yu., Vali G., Kuzmina N.P., Paka V.T., Pathways of suspended particles transport in the bottom layer of the Southeastern Baltic Sea depending on wind forcing (numerical simulations), Oceanology, 2010, Vol. 50, No. 6, pp. 841–854.
- Lavrova O.Yu., Kostianoy A.G., Lebedev S.A., Mityagina M.I., Ginzburg A.I., Sheremet N.A., Kompleksnyi sputnikovyi monitoring morei Rossii (Complex satellite monitoring of the Russian Seas), Moscow: IKI RAN, 2011, 470 p.
- Lavrova O.Yu., Krayushkin E.V., Solovyev D.M., Golenko M.N., Golenko N.N., Kalashnikova N.A., Demidov A.N., Vliyaniye vetrovogo vozdeystviya i gidrodinamicheskich protcessov na rasprostraneniye vod Kaliningradskogo zaliva v akvatorii Baltiyskogo moray (Influence of wind and hydrodynamic processes on propagation of the Vistula Lagoon waters into the Baltic Sea), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2014, Vol. 11, No. 4, pp. 76–99.
- Lavrova O.Yu, Mityagina M.I., Kostyanoy A.G., Sputnikovyie metody vyiyavleniya I monitoring zon ekologicheskogo riska morskih akvatoriy (Satellite Methods for Detecting and Monitoring Marine Zones of Ecological Risk), Moscow: IKI RAN, 2016, 335 p.
- Lavrova O.Yu., Sabinin K.D., Proyavleniya inertsionnyh kolebaniy na sputnikovyh izobrazheniyah morskoy poverhnosti (Manifestations of inertial oscillations in satellite images of the sea surface), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2016, Vol. 13, No. 4, pp. 60–73.
- Silvestrova K.P., Myslenkov S.A., Zatsepin A.G., Krayushkin E.V., Samsonov T.E., Baranov V.I., Kuklev S.B., GPS-drifters for study of water dynamics in the black sea shelf zone, Oceanology, 2016, Vol. 56, No. 1, pp. 150–156.
- Gade M., Seppke B., Dreschler-Fischer L., Mesoscale surface current fields in the Baltic Sea derived from multi-sensor satellite data, Intern. J. Remote Sensing, 2012, Vol. 33, Issue 10, pp. 3122–3146.
- Lavrova O., Mityagina M., Bocharova T., Gade M., Multichannel observation of eddies and mesoscale features in coastal zones, Remote sensing of the European Seas, Springer Verlag, 2008, pp. 463–474.
- Lavrova O., Karimova S., Mityagina M., Eddy Activity in the Baltic Sea Retrieved from Satellite SAR and Optical Data, Proc. 3rd Intern. Workshop SeaSAR 2010, 25–29 Jan, 2010, ESRIN, Frascati, Italy, 2010, Vol. ESA-SP-679, 5 p.
- Lavrova O., Krayushkin E., Golenko M., Golenko N., Effect of Wind and Hydrographic Conditions on the Transport of Vistula Lagoon Waters Into the Baltic Sea: Results of a Combined Experiment, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, Vol. 9, Issue 9, pp. 5193–5201. DOI: 10.1109/JSTARS.2016.2580602.
- Männik A., Merilain M., Verification of different precipitation forecasts during extended winter-season in Estonia, HIRLAM Newsletter, 2007, Vol. 52, pp. 65–70.
- Mietus M., The climate of the Baltic Sea basin, Marine meteorology and related oceanographic activities, Report 41, WMO/td 993, Geneva, 1998, 64 p.
- Osinski R., Rak D., Walczowski W., Piechura J., Baroclinic radius of deformation in the southern Baltic Sea, Oceanologia, 2010, Vol. 52, No. 3, pp. 417–429.
- Tolstosheev A.P., A method of estimation of the results of reconstruction of the trajectories of drifting buoys, Physical Oceanography, 2010, Vol. 19, No. 6, pp. 358–365.