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, 2019, Vol. 16, No. 2, pp. 196-206

Water exchange off the southern Primorye coast in the Japan Sea from satellite imagery and long-term in situ measurements

O.O. Trusenkova 1 , A.G. Ostrovskii 2 , A.Yu. Lazaryuk 1 , S.Yu. Ladychenko 1 , V.A. Dubina 1, 3 , V.B. Lobanov 1 
1 V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
2 P.P. Shirshov Institute of Oceanology, Moscow, Russia
3 Far Eastern State Technical Fisheries University, Vladivostok, Russia
Accepted: 20.02.2019
DOI: 10.21046/2070-7401-2019-16-2-196-206
Infrared/visible imagery from the NOAA, Suomi/NPP, and COMS satellites and data from the moored Aqualog profiler deployed off the Primorye (Russian) coast in the northwestern Japan Sea from mid April through mid October 2015 were analyzed. The nature of thermohaline anomalies in the subsurface waters (64–70 m) was revealed using the satellite data. On April 21–24 a meridional front was detected westward from the Aqualog site, with the offshore excursion of the Primorye Current eastward of this front. Therefore, cold (less than 2 C), fresh (less than 33.77 psu), and low-density (less than 27.0 kg/m3) water detected by the Aqualog in late April was identified as originating from the Primorye (Liman) Current. By May 10 the front shifted eastward and merged with an anticyclonic eddy earlier moving south-eastward in the Primorye Current zone. There was a wedge-shaped stretch of warm water between the inshore Primorye Current and the front/eddy structure, having been entrained in the eddy interior. From May 16 through May 21 wedge-shaped interleaving belts of warm and cold water were detected, probably, generated by instability of the dynamic structure including the front, eddy, and warm water wedge. Warm (above 4.5 C) and fresh (33.7 psu) low-density (26.7 kg/m3) water detected in early June was identified as the coastal water advected offshore at the eastern edge of a large anticyclonic eddy. Warm (above 3.5 C) and saline (34.00 psu and more) water irregularly detected by the Aqualog from late June through mid September was identified as the transformed subtropical water coming from the south or east. The temperature decrease from 4.1 to 3.1 C in early October after the passage of a cyclonic weather system was related to the coastal upwelling water reaching the Aqualog location.
Keywords: Japan Sea, Primorye (Liman) Current, mesoscale and submesoscale eddies, satellite infrared and visible imagery, moored autonomous profiler
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References:

  1. Zhabin I. A., Dmitrieva E. V., Sezonnaya i sinopticheskaya izmenchivost’ vetrovogo apvellinga u poberezh’ya yuzhnogo Primor’ya (Yaponskoe more) (Seasonal and mesoscale variability of wind upwelling off the southern Primorye coast (the Japan Sea)), Vestnik DVO RAN, 2014, No. 5, pp. 25–31.
  2. Zuenko Yu. I., Elementy struktury vod severo-zapadnoi chasti Yaponskogo morya (Elements of water structure in the northwestern Japan Sea), Izvestiya TINRO, 1998, Vol. 123, pp. 262–290.
  3. Ladychenko S. Yu., Lobanov V. B., Mesoscale Eddies in the Area of Peter the Great Bay on Satellite Data, Izvestiya, Atmospheric and Oceanic Physics, 2013, Vol. 49, No. 9, pp. 939–951.
  4. Lazaryuk A. Yu., Kaplunenko D. D., Ostrovskii A. G., Lobanov V. B., Trusenkova O. O., Ladychenko S. Yu., Eksperimental’nye issledovaniya izmenchivosti termokhalinnoi struktury vod nad kontinental’nym sklonom severo-zapadnoi chasti Yaponskogo morya (Experimental studies of the thermohaline structure at the continental slope in the northwestern Japan Sea), Okeanologicheskie issledovaniya, 2017, No. 45, pp. 33–51.
  5. Lobanov V. B., Ponomarev V. I., Salyuk A. N., Tishchenko P. Ya., Talley L. D., Struktura i dinamika sinopticheskikh vikhrei severnoi chasti Yaponskogo morya (Structure and dynamics of mesoscale eddies in the northwestern Japan Sea), In: Dal’nevostochnye morya Rossii, kniga 1, Okeanologicheskie issledovaniya (Far Eastern Seas of Russia, Book 1, Oceanological Research), Moscow: Nauka, 2007, pp. 450–473.
  6. Luchin V. A., Rykov N. A., Plotnikov V. V., Gidrologiya vod (Hydrophysics), In: Gidrometeorologiya i gidrokhimiya morei, T. 8: Yaponskoe more, Vyp. 1: Gidrometeorologicheskie usloviya (Hydrometeorology and Hydrochemistry of the Seas, Vol. 8: Japan Sea, Issue 1: Hydrometeorological Conditions), Saint Petersburg: Gidrometeoizdat, 2003, pp. 157–256.
  7. Nikitin A. A., Danchenkov M. A., Lobanov V. B., Yurasov G. I., Novaya skhema poverkhnostnoi tsirkulyatsii Yaponskogo morya s uchetom sinopticheskikh vikhrei (New scheme of the surface circulation of the Japan Sea, considering mesoscale eddies), Izvestiya TINRO, 2009, Vol. 157, pp. 158–167.
  8. Ostrovskii A. G., Zatsepin A. G., Soloviev V. A., Tsibulsky A. L., Shvoev D. A., Autonomous system for vertical profiling of the marine environment at a moored station, Oceanology, 2013, Vol. 53, No. 2, pp. 233–242.
  9. Ponomarev V. I., Faiman P. A., Dubina V. A., Ladychenko S. Yu., Lobanov V. B., Sinopticheskaya vikhrevaya dinamika nad severo-zapadnym materikovym sklonom i shel’fom Yaponskogo morya (modelirovanie i rezul’taty distantsionnykh nablyudenii) (Mesoscale eddy dynamics at the northwest Japan Sea continental slope and shelf (simulation and remote sensing results)), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 2, pp. 100–104.
  10. Trusenkova O. O., Modelirovanie regional’nykh osobennostei tsirkulyatsii Yaponskogo morya pod razlichnym vneshnim vozdeistviem (Regional circulation features in the Japan Sea simulated under the different kinds of external forcing), Izvestiya TINRO, 2012, Vol. 169, pp. 118–133.
  11. Trusenkova O. O., Lazaryuk A. Yu., Ostrovskii A. G., Lobanov V. B., Kaplunenko D. D., Korotkoperiodnaya izmenchivost’ vertikal’noi stratifikatsii vod na kontinental’nom sklone v raione zaliva Petra Velikogo (Yaponskoe more) (Short-term variability of the density stratification at the continental slope off Peter the Great Bay, the Japan Sea), Vestnik DVO RAN, 2018, No. 1, pp. 49–59.
  12. Fyodorov K. N., Ginzburg A. I., Pripoverkhnostnyi sloi okeana (Surface oceanic layer), Leningrad: Gidrometeoizdat, 1988, 304 p.
  13. Danchenkov M. A., Lobanov V. B., Riser S. C., Kim K., Takematsu M., Yoon J.-H., A history of physical oceanographic research in the Japan/East Sea, Oceanography, 2006, Vol. 19, No. 3, pp. 18–31.
  14. Talley L. D., Tischenko P., Luchin V., Nedashkovskiy A., Sagalaev S., Kang D.-J., Warner M., Min D. H., Atlas of Japan (East) Sea hydrographic properties in summer, 1999, Progress in Oceanography, 2004, Vol. 61, No. 2-4, pp. 277–348.