Earth’s Cryosphere, 2011, Vol. XV, No. 4, p. 63-65

COASTAL DYNAMICS OF THE WESTERN YAMAL.

A.A. Vasiliev, R.S. Shirokov, G.E. Oblogov, I.D. Streletskaya*

Institute of Earth’s Cryosphere, Siberian Branch of the Russian Academy of Sciences, 86, Malygina str., Tyumen, 625026, Russia; al.a.vasiliev@gmail.com
*Lomonosov Moscow State University, Department of Geography, 1, Leninskie Gory, Moscow, 119992, Russia

Long-term monitoring of coastal dynamics in the Western Yamal, at the Marre-Sale key site has shown a mean coastal retreat at 1.7 m/yr, with the maximum 3.3 m/yr and the minimum 0.5 m/yr. The time-dependent variations in the retreat rate show cyclic patterns. The change in beach and shoreface elevation in thermal erosion coasts reaches 0.7 m and can be either positive or negative. First quantitative estimates give 0.3 m maximum elevation change of accumulative surfaces.

---