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Water balance of the Small Aral Sea

Authors
  • Massakbayeva, Assiya1, 2, 3
  • Abuduwaili, Jilili1, 2, 3
  • Bissenbayeva, Sanim1, 2, 3
  • Issina, Botagoz1, 2, 3
  • Smanov, Zhassulan1, 2, 3
  • 1 Chinese Academy of Sciences, Ürümqi, 830011, China , Ürümqi (China)
  • 2 Chinese Academy of Sciences Research Center for Ecology and Environment of Central Asia, Ürümqi, 830011, China , Ürümqi (China)
  • 3 University of Chinese Academy of Sciences, Beijing, 100049, China , Beijing (China)
Type
Published Article
Journal
Environmental Earth Sciences
Publisher
Springer-Verlag
Publication Date
Jan 29, 2020
Volume
79
Issue
3
Identifiers
DOI: 10.1007/s12665-019-8739-5
Source
Springer Nature
Keywords
License
Yellow

Abstract

Water balance is considered as an important tool to assess the amount of water and its availability in a region. The Small Aral Sea is a salt lake in the territory of the Kyzylorda region of Kazakhstan, the Northern part of the shrinking Aral Sea, receiving water from the Syr Darya, as a result of lowering of the water horizon of the Aral Sea and with the onset of 40–40.2 m in 1987, when the Berg Strait was formed. In this study, water balance assessment in the Small Aral Sea has been done from 1987 to 2014. The water balance of the Small Aral Sea during the observation period is mainly determined by river runoff, precipitation and evaporation. The general tendency of precipitation decreased slightly, while the general tendency for evaporation increase is high. The annual inflow of the river into the Small Aral Sea increased from 1 km3 in 1987 to 5 km3 in 2014 while its water balance increased from − 1.4 to 2.44 km3. As the result, the water volume of the Small Aral Sea increased by 6% and the water surface area by 4% during the analyzed period.

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