Aydar-Arnasay system of lakes includes 3 brackish water lakes (Aydar Kul, Arnasay and Tuzkan) located in the saline depressions of the south-eastern Kyzyl Kum (now in Uzbekistan and Kazakhstan).

The Aydar Lake is part of the man-made Aydar-Arnasay system of lakes. In 2005 the Aydar Lake contained 44.3 cubic kilometers of water. Today the area of the Aydar Lake amounts 3,000 km² (1,200 sq mi). It is nearly 250 km (160 mi) long and up to 15 km (9.3 mi) wide. The mineralization of the water in the Aydar Lake averages only 2 grams per liter (2,000 ppm).

Review scheme of Aydar-Arnasay system of lakes location
(source: SIC ICWC)

Source: Wikipedia

Papers

Wahyuni S., Oishi S., Sunada K., Toderich K.N., N.E Gorelkin - Analysis of water-level fluctuations inAydarkul-Arnasay-Tuzkan Lake System and its impacts on the surrounding groundwater level (2009)