ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2016, Vol. 13, No. 4, pp. 60-73

Manifestations of inertial oscillations in satellite images of the sea surface

O.Yu. Lavrova 1 , K.D. Sabinin 1 
1 Space Research Institute RAS, Moscow, Russia
Accepted: 24.08.2016
DOI: 10.21046/2070-7401-2016-13-21-60-73
The paper develops a technique for the detection of inertial oscillations (IOs) of water layers in satellite images of the sea surface. These oscillations are typically realized in solid body rotation of layers when the nonuniformities of the surface layer are transferred by inertial currents without configuration change within the whole region encompassed by the IO. Therefore, to reveal an IO, a single time satellite image is insufficient, it is necessary to obtain a series of images taken within the time interval equal to the inertial period. We suggest that if current tracers, represented by any densely packed substance capable to aggregate in zones of convergence, are present at the water surface, IOs will be manifested in satellite images either as circular slicks or plumes hemming the IO boundaries. Examples of corrugated-pipe-like structures presumably formed by IOs at stream edges of submesoscale eddies are presented. The hypothesis is supported by the results of concurrent buoy measurements. A comparison of surface manifestations of stream flows of submesoscale eddies, distinctly visible in radar images, with drifting buoy data demonstrated that the streams were accompanied by IOs.
Keywords: inertial oscillations, eddies, current tracers, satellite images, drifting buoys
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References:

  1. Bondur V.G., Sabinin K.D., Grebenyuk Yu.V., Anomalous variation of the ocean's inertial oscillations at the Hawaii shelf, Doklady Earth Sciences, 2013, Vol. 450, Issue 1, pp. 526–530.
  2. Bondur V.G., Sabinin K.D., Grebenyuk Yu.V., Kharakteristiki inertsionnykh kolebanii po dannym eksperimental'nykh izmerenii techenii na rossiiskom shel'fe Chernogo morya (Characteristics of inertial oscillations according to experimental measurements of currents in the Russian Black Sea shelf), Izvestiya RAN, FAO, 2016 (in print).
  3. Ginzburg A.I., Bulycheva E.V., Kostianoy A.G., Solovyov D.M., Vortex dynamics in the southeastern Baltic Sea from satellite radar data, Oceanology, 2015, Vol. 55, No. 6, pp. 805–813.
  4. Gorbatskii V.V., Gudoshnikov Yu.P., Nesterov A.V., Izmereniya techenii na morskoi poverkhnosti doplerovskim radarom, ustanovlennym na sudne (Measurements of sea surface currents by the Doppler radar installed on board of the vessel), Sbornik dokladov XXVII Vserossiiskogo simpoziuma “Radiolokatsionnoe issledovanie prirodnykh sred” (Proc. XXVII Symp.”Radar Investigation of Natural Media”), Saint-Petersburg, 2011.
  5. Lavrova O.Yu., Mityagina M.I., Sabinin K. D., Proyavlenie vnutrennikh voln na morskoi poverkhnosti v severo-vostochnoi chasti Chernogo moray (Manifestations of internal waves on the sea surface in North-Eastern part of the Black Sea), Issledovanie Zemli iz kosmosa, 2009, No. 6, pp. 49–55.
  6. Lavrova O. Yu., Sabinin K. D., Fine spatial structure of flows on satellite radar image of the Baltic Sea, Doklady Earth Sciences, 2016, Volume 467, Issue 2, pp. 427–431.
  7. Lebedev V.L., Srednemasshtabnye cherty struktury geostroficheskogo techeniya (Medium-sized structure of a geostrophic flow features), Vestnik Moskovskogo universiteta, 1968, No. 2, pp. 36-42.
  8. Sabinin K.D., O sdvigovom iskazhenii dannykh po orbital'nym skorostyam vo vnutrennikh volnakh (On the shear distortion of data on the orbital velocities of internal waves), Okeanologiya, 1976, Vol. 16, No. 3, pp. 397–402.
  9. Sabinin K.D., Lavrova O.Yu., Kol'chatye struktury na sputnikovykh izobrazheniyakh i veroyatnaya prichina ikh obrazovaniya (fenomenologicheskaya model') (Corrugated-pipe-like structures on satellite images of the sea surface and phenomenological model of their origin), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2015, Vol. 12, No. 1, pp. 93–101.
  10. Silvestrova K.P., Myslenkov S.A., Zatsepin A.G., Krayushkin E.V., Baranov V.I., Samsonov T.E., Kuklev S.B., GPS-drifters for study of water dynamics in the Black Sea shelf zone, Oceanology. 2016, Volume 56, Issue 1, pp. 150–156.
  11. Fomin L.M., Ob inertsionnykh kolebaniyakh v gorizontal'no neodnorodnom pole skorosti techenii v okeane (On inertial oscillations in a horizontally inhomogeneous field flow velocity in the ocean), Izv. AN SSSR, Fizika atmosfery i okeana, 1978, Vol. 9, No. 1. pp. 147–157.
  12. Shuleikin V.V., Fizika morya (Sea physics), 4-th Edition, Moscow: Nauka, 1968. 1084 p.
  13. Elipot S., Lumpkin R., Prieto G., Modification of inertial oscillations by the mesoscale eddy field, Journal Geophys. Res., 2010, No. 115, C09010. DOI:10.1029/2009JC005679.
  14. 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. DOI:10.1109/JSTARS.2016.2580602.