Effects of the storage conditions on the stability of natural and synthetic cannabis in biological matrices for forensic toxicology analysis: An update from the literature

Ryn Desert Нарын құмы / Рын-пески
Desert
Ryn Desert area NASA image
Ryn Desert Show map of Kazakhstan Ryn Desert Show map of Astrakhan Oblast
Coordinates: 47°20′00″N 48°50′00″E / 47.3333°N 48.8333°E / 47.3333; 48.8333
Area
• Total	40,000 km2 (15,000 sq mi)
Highest elevation	100 meters (330 ft)
Surface elevation	−20 m (−70 ft)

The Ryn Desert or Ryn-Peski Desert (Kazakh: Нарын құмы, Naryn-Qūmy; Russian: Рын-пески) is a desert in western Kazakhstan and Astrakhan Oblast, Russia.

It is located 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° N and 49° N latitude, and 48° E to 52° E longitude. Many small towns are scattered throughout the Ryn Desert, and population density is between 1 and 15 people per square mile. Aralsor lake lies at the northern edge.^[1]

The desert lies in a semi-arid climate zone, and receives very little rainfall.^{[citation needed]}

Temperatures can reach extreme highs of 45 to 48 °C (113 to 118 °F) during summer and in winter they can drop to a low of −28 to −36 °C (−18 to −33 °F).^{[citation needed]}

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.^[2]

• Caspian lowland desert ecoregion

• DK World Atlas, Millennium Edition, pgs. xxv, xxix, 258 ISBN 978-0789446046
• Russia’s Climate and Geography History Today