ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 3, pp. 208-216

Assessment of short-period oscillations of surface temperature in the Japan Sea with the use of satellite data

O.O. Trusenkova 
V.I. Il’ichev Pacific Oceanological Institute FEB RAS, Vladivostok, Russia
Short-period oscillations of sea surface temperature (SST) in the Japan Sea are studied using data for the period from October 1993 through March 2012, high-pass filtered with the 4-month cut-off period. Three modes derived using empirical orthogonal functions (EOF) analysis account for about 70% of the total variance and feature weak oscillations of about 1–2% from mean SST values, with average periods of 90, 65–70, and 105–110 days. The spectral power of the temporal functions is largest from July through September when the meridional gradient of sea level sharpens and the mean currents strengthen in the Japan Sea. Their high-frequency parts are well approximated by power-law functions with the slopes of –3 to –2.6, corresponding to the 2D turbulence. Short-period SST oscillations strengthen and weaken quasi-biennially.
Keywords: температура поверхности моря, вейвлет-преобразование, высокочастотная фильтрация, эмпирические ортогональные функции, короткопериодные колебания, квазидвухлетняя изменчивость, sea surface temperature, wavelet transform, high-pass filtration, empirical orthogonal functions, short-period oscillations, quasi-biennial variability
Full text


  1. Belonenko T.V., Bloshkina E.V., Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 1, pp. 199–205.
  2. Nikitin A.A., Yurasov G.I., Issledovanie Zemli iz kosmosa, 2008, No. 5, pp. 2–57.
  3. Trusenkova O.O., Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009, Vol. 6, No. 1, pp. 484–492.
  4. Trusenkova O.O., Kaplunenko D.D., Okeanologiya, 2013, No. 3, pp. 347–356.
  5. Trusenkova O.O., Lobanov V.B., Kaplunenko D.D., Izvestiya RAN. Fizika atmosferi i okeana, 2008, No. 4, pp. 553–566.
  6. Monin A.P., Fizika okeana.Gidrofizika okeana (Ocean physics. Ocean hydrophysics), Moscow: Nauka, 1978, 457 p.
  7. Lim S.-H., Jang C.J., Oh I.S., Park J.-J., Climatology of the mixed layer depth in the East/Japan Sea, Journal of Marine Systems, 2012, Vol. 96, No. 2, pp. 1–14.
  8. Minobe S., Sako A., Nakamura M., Interannual to interdecadal variability in the Japan Sea based on a new gridded upper water temperature dataset, Journal of Physical Oceanography, 2004, Vol. 34, No. 11, pp. 2382–2397.
  9. Ostrovskii A., Signatures of stirring and mixing in the Japan Sea surface temperature patterns in autumn 1993 and spring 1994, Geophysical Research Letters, 1995, Vol. 22, No. 17, pp. 2357–2360.
  10. Park S., Chu P., Interannual SST variability in the Japan/East Sea and relationship with environmental variables, Journal of Oceanography, 2006, Vol. 62, No. 2, pp. 115–132.
  11. Torrence C., Compo G.P., A practical guide to wavelet analysis, Bulletin of the American Meteorological Society, 1998, Vol. 79, No. 1, pp. 61–78