Abstract
The area integral of the sea ice thickness in the Arctic Basin is estimated from the measurements of sea ice surface fluctuations at drift-ice stations. The 1970–1990 linear trend is indicative of an approximately 10-cm reduction in the average sea ice thickness over the entire Arctic Basin, which makes 3% of the average ice thickness (about 3 m). Seasonal changes made 40 cm. The amplitude of variations of the average ice thickness in that period is 20 cm with a period of changes of approximately 6–8 years. The observations were interrupted during 1991–2003 and then resumed in 2004. During 1990–2005, the old ice thickness over the entire Arctic Basin decreased, on average, by 110 cm.
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A. P. Nagurnyi, V. G. Korostelev, and V. V. Ivanov, “Long-term Variability of Sea Ice Thickness in the Arctic Basin Calculated from Measurements of Elastic-Gravity Waves on the Ice Surface,” Meteorol. Gidrol., No. 3 (1999) [Russ. Meteorol. Hydrol., No. 3 (1999)].
V. N. Smirnov, “Sea Ice Cover Fluctuations due to Subsurface Waves of the Ice Ocean,” Dokl. Akad. Nauk SSSR, No. 5, 206 (1971) [Sov. Phys. Dokl., No. 5, 206 (1971)].
A. D. Sytinskii and V. P. Tripol’nikov, “Some Results of Investigation of Natural Ice Field Fluctuations in Central Arctic,” Izv. Akad. Nauk SSSR, Ser. Geofiz., No. 4 (1964) [Izv., Ser. Geophys., No. 4 (1964)].
L. A. Timokhov and D. E. Kheisin, Sea Ice Dynamics (Gidrometeoizdat, Leningrad, 1987) [in Russian].
E. K. Fedorov, V. V. Bogorodskii, V. P. Gavrilo, and V. N. Smirnov, “Slow Waves at the Arctic Ocean Surface,” Dokl. Akad. Nauk SSSR, No. 6, 254 (1989) [Sov. Phys. Dokl., No. 6, 254 (1989)].
D. E. Kheisin, Sea Ice Cover Dynamics (Gidrometeoizdat, Leningrad, 1967) [in Russian].
G. V. Alekseev, S. I. Kuzmina, A. P. Nagurnyi, and N. E. Ivanov, “Arctic Sea Ice Data Sets in the Context of Climate Change during the 20th Century,” in Climate Variability and Extremes during the Past 100 Years, Series: Advances in Global Change Research, 33 (2008).
A. P. Crary and N. Coldstein, “Geophysical Studies in the Arctic Ocean,” Deep-Sea Res., No. 4 (1957).
J. W. Davis, K. J. Hosking, and A. D. Sneyd, “Waves due to Steadily Moving Source on a Floating Ice Plate,” J. Fluid Mech., 158 (1985).
K. Hunkins, “Waves in the Arctic Ocean,” J. Geophys. Res., No. 6, 67 (1962).
A. P. Nagurnyi, “Sea Ice Thickness,” in Arctic Environment Variability in Context of Global Change, Ed. by L. P. Bobylev, R. Ya. Kondrat’ev, and O. M. Johannessen (Springer, Chichester, UK, 2003).
A. P. Nagurnyi, V. G. Korostelev, and V. P. Abaza, “A Method for Determination of Effective Sea Ice Thickness in the Arctic Basin for Climate Monitoring,” Bull. Russ. Acad. Sci., Physics, Suppl. Physics of Vibrations, 58 (1994).
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Original Russian Text © A.P. Nagurnyi, 2009, published in Meteorologiya i Gidrologiya, 2009, No. 9, pp. 72–78.
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Nagurnyi, A.P. Climate tendencies of changes in multiyear sea ice thickness in the Arctic Basin (1970–2005). Russ. Meteorol. Hydrol. 34, 613–617 (2009). https://doi.org/10.3103/S1068373909090064
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DOI: https://doi.org/10.3103/S1068373909090064