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The Ryn Desert or Ryn-Peski Desert (Kazakh: Нарын-Құм), is a desert in western Kazakhstan and south-eastern Russia, north of the Caspian Sea and southeast of the Volga Upland. The borders of the desert are very loosely defined. Some maps show the desert almost entirely within the Caspian Depression, stretching almost to the coast of the Caspian Sea, while others show it north of the depression. It lies west of the Ural River between 46° and 49° North latitude, and 47° to 52° East longitude. Temperatures can reach extreme highs of 45 °C to 48 °C during summer and in winter it can drop to a low of -28 °C to -36 °C .
Many small towns are scattered throughout the Ryn Desert, and population density is between 1 and 15 people per square mile. The Ryn lies in a semi-arid climate zone, and receives very little rainfall.
High winds sweep across the desert, and in 2001 a dust storm in the Baltic Sea was determined as originating in the Ryn Desert. A study of long-range dust transportation to the Baltic Sea region—by analyzing dust pollution in Scandinavia, showed that aerosol concentrations there were influenced more by the Ryn Desert region than the Sahara Desert in Africa.
- International Journal of Environment and Pollution 2004 - Vol. 22, No.1/2 pp. 72 – 86. ISSN 0957-4352
- DK World Atlas, Millennium Edition, pgs. xxv, xxix, 258 ISBN 978-0789446046
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