Lake Sevan Level Increase Dynamics Evaluation In 2002-2013

Lake Sevan Level Increase Dynamics Evaluation In 2002-2013

Engineer Mechanic Sergey Hajinyan

Since 2008 the process of increasing Lake Sevan level has been suspended based on different reasons and substantiations.

 - Under estimates, a total of 9,325 (5.20 + 4.125) billion cum water flew into Lake Sevan (746 cm of water level), out of which 2.303 billion cum through “Arpa-Sevan” tunnel.

- A total of 2.067 billion cum water was let out of lake for irrigation and other purposes (under data by Haypethydromet Service).

- Factually, 4.565 (3.10+1.465) billion cum water was collected in the lake (365 cm of water level), which is twice as much as the water volume flown into Lake Sevan through “Arpa-Sevan” tunnel.  

 - In the first six years, the average level increase of the lake water was maximum 69 cm, in the second six years - 55 cm.

- In the second six years as compared with the first six years, 1.075 (5.20-4.125) billion cum less water flew into the lake, out of which 0.519 (1.411-0.892) billion cum through “Arpa-Sevan” tunnel in 20011-13.

February 09, 2015 at 17:16