Analysis of the ice cover variations in the arctic sea of Okhotsk based on aircraft and satellite observations

DOI: 10.35595/2414-9179-2022-1-28-441-449

View or download the article (Rus)

About the Authors

Valery A. Romanyuk

SakhalinNIPI Oil and Gas,
Amurskaya str., 53, 693000, Yuzhno-Sakhalinsk, Russia;
E-mail: varomanyuk2020@gmail.com

Vladimir M. Pishchalnik

The Institute of marine Geology and Geophysics FEB RAS,
Nauki str., 1b, 693022, Yuzhno-Sakhalinsk, Russia;
E-mail: vpishchalnik@gmail.com

Daria V. Zarubina

Sakhalin State University,
Lenina str., 290, 693000, Yuzhno-Sakhalinsk, Russia;
E-mail: dariadorofeyeva26@gmail.com

Abstract

The paper presents the results of a study of the Sea of Okhotsk ice cover variability for the period 1961–2020. Based on aviation and satellite observations for the first time, the calculations of anomalies in the Sea of Okhotsk ice cover were performed for two nonintersecting standard climate normals of 1961–1990 and 1991–2020. Statistical analysis made it possible to quantify the changes that occurred against the background of modern climate warming. The general downward trend in the ice cover of the Sea of Okhotsk for the period from 1961 to 2020 is 3 % per 10 years, and the range of fluctuations reaches about 40 %. It was shown that for the standard climate normal 1991–2020 was characterized by a decrease in the average ice cover for the season by 10 %. The date of the onset of the seasonal maximum of the sea ice coverage in the context of the global trend of increasing air temperature shifted one decade earlier than the date that was determined for the period 1961–1990. (March 5 and 15, respectively). In the phase of intense ice formation, there is a delay in the development of ice processes by 10 days, and in the phase of destruction, it is ahead by 15 days. It is shown that changes in the intraseasonal course of the ice cover in the Sea of Okhotsk that have occurred in the last 30 years are most significantly manifested in the phase of ice cover destruction. In the long-term course of ice coverage anomalies calculated relative to the standard climatic norm of 1991–2020, starting from 2004, there has been a sharp increase in the frequency of negative anomalies (up to 81 %), which indicates a unidirectional development of the process of reducing the ice cover in the Sea of Okhotsk.

Keywords

ice cover, inter-annual fluctuations, GIS, tendencies, climate normals, reference period, the Sea of Okhotsk

References

  1. Alekseeva T.A., Raev M.D., Tikhonov V.V., Sokolova Yu.V., Sharkov E.A., Frolov S.V., Serovetnikov S.S. Comparative analysis of the area of sea ice in the Arctic, obtained from satellite microwave radiometry (VASIA2 algorithm) with AARI ice maps. Research of the Earth from space, 2020. No. 6. P. 17-23 (in Russian).
  2. Borders of oceans and seas. No. 9031. St. Petersburg: GUNiO MO, 2000. P. 127–137 (in Russian).
  3. Commission for Climatology. Sixteenth session. Heidelberg 3–8 July 2014. Abridged final report with resolutions and recommendations. WMO. No. 1137. 2017. 80 p. (in Russian).
  4. Dumanskaya I.O. Changes in the climatic ice characteristics of the Sea of Okhotsk at the end of the 20th–beginning of the 21st centuries. Proceedings of the Hydrometeorological Research Center of the Russian Federation, 2015. No. 354. P. 112–137 (in Russian).
  5. Girs A.A., Kondratovich K.V. Methods of long-term weather forecasts. Leningrad: GMI, 1978. 344 p. (in Russian).
  6. Kryndin A.N. Seasonal and interannual changes in the ice coverage and position of the ice edge in the Far Eastern seas due to the peculiarities of atmospheric circulation. Proceedings of GOIN. 1964. Issue. 71, P. 5–80 (in Russian).
  7. Minervin I.G., Pishchalnik V.M., Bobkov A.O., Romanyuk V.A. Basic principles of operation of the software complex “ICE”. Physics of the Geospheres: Ninth All-Russian Symposium, 31 August 31–September 4, 2015. Vladivostok, Russia: Materials of the report. Establishment of the Russian Academy of Sciences Pacific Oceanological Institute Ilyichev of the Far Eastern Branch of the Russian Academy of Sciences. Vladivostok: Dalnauka, 2015, P. 556–561 (in Russian).
  8. Mitnik L.M., Mitnik M.L., Zabolotkskikh E.V. Japanese satellite GCOM-W1: modeling, calibration and first results of ocean and atmosphere reconstruction. Modern problems of remote sensing of the Earth from space, 2013. V. 10, No. 3. P. 135–141 (in Russian).
  9. Pishchalnik V.M., Minervin, V.A. Romanyuk. Analysis of changes in the ice regime in certain areas of the Sea of Okhotsk during the warming period. Bulletin of the Russian Academy of Sciences, 2017. V. 87, No. 5. P. 429–440 (in Russian). DOI: 10.7868/S0869587317050024.
  10. Pishchalnik V.M., Romanyuk V.A., Minervin I.G., Batukhtina A.S. Analysis of the dynamics of ice coverage anomalies in the Sea of Okhotsk in the period from 1882 to 2015. Izvestiya TINRO, 2016. V. 185. P. 228–239 (in Russian).
  11. Plotnikov V.V. Variability of ice conditions in the Far Eastern seas of Russia and their forecast. Dalnauka, 2002. 172 p. (in Russian).
  12. Report on climate features in the territory of the Russian Federation for 2019. Moscow, 2020. 97 p. Web resource: http://www.meteorf.ru/press/releases/20628/ (in Russian)
  13. Shatilina T.A. Statistical estimates of climate change trends over the Far East in winter and summer periods 1980–2012. Issues of commercial oceanography. VNIRO Publishing House, 2014. Issue. 11, No. 1. P. 76–97 (in Russian).
  14. Yakunin L.P. Atlas of the main parameters of the ice cover of the Sea of Okhotsk. Vladivostok: FEFU, 2012. 118 p. (in Russian).

For citation: Romanyuk V.A., Pishchalnik V.M., Zarubina D.V. Analysis of the ice cover variations in the arctic sea of Okhotsk based on aircraft and satellite observations. InterCarto. InterGIS. GI support of sustainable development of territories: Proceedings of the International conference. Moscow: MSU, Faculty of Geography, 2022. V. 28. Part 1. P. 441–449. DOI: 10.35595/2414-9179-2022-1-28-441-449 (in Russian)