ANALYSIS OF INTERANNUAL AND SEASONAL VARIABILITY OF ICE COVER IN ANIVA BAY AND LA PEROUSE STRAIT ACCORDING TO EARTH REMOTE SENSING DATA

https://doi.org/10.24057/2414-9179-2017-3-23-81-92

View or download the article (Rus)

About the Authors

V. A. Romanyuk

Sakhalin State University
Russian Federation
693000, Yuzhno-Sakhalinsk, Lenin st, 290

I. V. Eremenko

Sakhalin State University
Russian Federation
693000, Yuzhno-Sakhalinsk, Lenin st, 290

V. M. Pishchal’nik

Sakhalin State University
Russian Federation
693000, Yuzhno-Sakhalinsk, Lenin st, 290

Abstract

Based on the data of satellite observations of the ice cover with the use of geoinformation technologies, an analysis of the interannual and seasonal variability of ice cover in Aniva Bay and La Perouse Strait has been made. It is established that there is a tendency for a decrease in ice cover by 2.5% in Aniva Bay, and in La Perouse Strait – by 11% for the period from 1979 to 2016. It is revealed that Aniva Bay is the only water area with a tendency of increasing ice cover. Based on the analysis of the dynamics of ice cover anomalies relative to the climatic standard norm of 1981- 2010, periods with the predominance of its positive and negative values and years with the highest and lowest values have been marked. It is shown that the ice cover of La Perouse Strait and Aniva Bay has the greatest interrelation with the ice cover in the extreme southern part of the Sea of Okhotsk with a correlation coefficient of 0.76 and 0.66, respectively. The typing of winters according to the severity of ice conditions has been performed according to which it is determined that the sum of severe and extremely severe types of winters in Aniva Bay is higher than that in La Perouse Strait. Analysis of the intra-seasonal course of ice cover made it possible to determine the mean dates for the appearance and disappearance of the ice in Aniva Bay and La Perouse Strait, as well as the duration of the ice period. Aniva Bay is characterized by almost complete filling with ice, which occurs here in severe winters from February 10 to March 10. La Perouse Strait is filled with ice in the severe winters only by 70% - from 15 to 25 of February.

Keywords

Aniva Bay, La Perouse Strait, ice extent, remote sensing of the Earth, safety of navigation.

References

  1. Granici okeanov i morei [Borders of the oceans and seas], No 9031, St. Petersburg: GUNiO MO, 2000, pp. 127–137 (in Russian).
  2. Kryndin A.N. Sezonnie i mejgodovie izmeneniya ledovitosti i kromki lda na dalnevostochnih moryah v svyazi s osobennostyami atmosfernoi cirkulyacii [Seasonal and interannual changes in ice extent and ice edge in the Far Eastern seas due to the peculiarities of atmospheric circulation], Tr. GOIN, 1964, pp. 5–81 (in Russian).
  3. Minervin I.G., Romanyuk V.A., Pischalnik V.M., Truskov P.A., Pokrashenko S.A., Raionirovanie ledyanogo pokrova Ohotskogo i Yaponskogo morei [Zoning of the ice cover of the Okhotsk and Japan seas], Vestnik RAN 201, T. 85, No 1, pp. 24–32 (in Russian).
  4. Pishchal’nik V.M., Romanyuk V.A., Minervin I.G., Batuhtina A.S., Analiz dinamiki anomalii ledovitosti Ohotskogo morya v period s 1882 po 2015 gg. [Analysis of the dynamics of anomalies in the ice cover of the Sea of Okhotsk between 1882 and 2015], Izv. TINRO, 2016, Vol. 185, pp. 228–239 (in Russian).
  5. Pishchal’nik V.M., Minervin I.G., Romanyuk V.A. Analiz izmenenij ledovogo rezhima v otdel’nyh rajonah Ohotskogo morya v period potepleniya s 1979 po 2015 gg. [Analysis of ice conditions changes in some areas of the Okhotsk Sea in the period of warming from 1979 to 2015], Vestnik RAN, 2017, T. 87, No 1, pp. 430–441 (in Russian).
  6. Plotnikov V.V. Izmenchivost ledovih uslovii dalnevostochnih morei Rossii i ih prognoz [Variability of ice conditions in the Far Eastern seas of Russia and their forecast] Vladivostok: Dalnauka, 2002, 172 p. (in Russian).
  7. Plotnikov V.V., Yakunin L.P., Petrov V.A., Ledovie usloviya i metodi ih prognozirovaniya [Ice conditions and methods for predicting them], Proekt “Morya”, Gidrologiya i “gidrohimiya morei, Vol. IX. Ohotskoe more, Vyp. 1. Gidrometeorologicheskie usloviya, SPb., Gidrometeoizdat, 1998, pp. 291–340 (in Russian).
  8. Tcipisheva I.L., Muktepavel L.S., Ciciashvili G.Sh., Shatilina T.A., Radchenkova T.V.Osobennosti izmenchivosti ledovitosti v Tatarskom prolive (Yaponskoe more) v svyazi s regionalnoi atmosfernoi cirkulyaciei [Features of variability of ice cover in the Tatar Strait (Sea of Japan) in connection with regional atmospheric circulation], Izv. TINRO, 2016, Vol. 184, pp. 135–149 (in Russian).

For citation: Romanyuk V.A., Eremenko I.V., Pishchal’nik V.M. ANALYSIS OF INTERANNUAL AND SEASONAL VARIABILITY OF ICE COVER IN ANIVA BAY AND LA PEROUSE STRAIT ACCORDING TO EARTH REMOTE SENSING DATA. Proceedings of the International conference “InterCarto. InterGIS”. 2017;23(3):81-92. https://doi.org/10.24057/2414-9179-2017-3-23-81-92