Semyonovsky Island (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Semyonovsky Island was an island in the southwest part of the New Siberian Islands in the eastern part of the Laptev Sea. Before its destruction, it was at 4 km2, one of the smallest islands in the archipelago. In 1945, just before it disappeared, its sea cliffs rose about 24 meters above sea level. Since it discovery, Semenovsky Island rapidly decreased in size until it disappeared between 1952 and the early 1960s. The area of Semyonovsky Island was 4.6 km in 1823, 0.9 km in 1912, 0.5 km in 1936, and 0.2 km in 1945. In 1950, it was only a solitary baydzharakh (thermokarst mound). By 1952, it had been eroded down into a sand bar lying just above the sea surface. When Semyonovsky Island was visited in the early 1960s, it had vanished and only a sand shoal with an average depth of 10 m and minimum depth of 0.2 m remained.