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SPANDARYAN RESERVOIR AID TO LAKE SEVAN DIDN'T COME TRUE
18:15 March 06, 2015
Sergey Hajinyan, engineer-mechanic
Levon Galstyan, geographer, Pan-Armenian Environmental Front
In the last four years (2011-2014) the increase in Lake Sevan has been
drastically suspended. During these years the lake level increased
only by 23 cm, when from 2002 to 2005 the increase accounted for 1.74
m. That is, in the last four years the lake lost 1.5 meters from
its level or 1,875 billion cum water. By the way, the atmospheric
precipitation for these two periods in the lake basin differed
insignificantly (around 14%).
One of the main tools to suspend the increase was less volume of water
as much as 600 million cum flowing into Lake Sevan through Arpa-Sevan
tunnel as compared with the first four years.
It should be documented that as of 1 January 2015, the level of Lake
Sevan was less by 11 cm than it was documented 5 years ago, when the
maximum level was recorded in the summer of 2010.
Since 2004 no drop of water has been transferred from Spandaryan
Reservoir to Kechout Reservoir though Vorotan-Arpa Tunnel. Moreover,
no water is transferred from the Yeghegis River through "Arpa-Sevan"
tunnel, just the opposite - instead of flowing into Lake Sevan most
water flows back to the Yeghegis River to ensure the continuous
operation of numerous SHPPs constructed on it.
The suspension of Lake Sevan level was launched still in 2004 on the
eve of the operation of Vorotan Arpa Tunnel.
http://ecolur.org/en/news/sevan/spandaryan-reservoir-aid-to-lake-sevan-didnt-come-true/7094/
18:15 March 06, 2015
Sergey Hajinyan, engineer-mechanic
Levon Galstyan, geographer, Pan-Armenian Environmental Front
In the last four years (2011-2014) the increase in Lake Sevan has been
drastically suspended. During these years the lake level increased
only by 23 cm, when from 2002 to 2005 the increase accounted for 1.74
m. That is, in the last four years the lake lost 1.5 meters from
its level or 1,875 billion cum water. By the way, the atmospheric
precipitation for these two periods in the lake basin differed
insignificantly (around 14%).
One of the main tools to suspend the increase was less volume of water
as much as 600 million cum flowing into Lake Sevan through Arpa-Sevan
tunnel as compared with the first four years.
It should be documented that as of 1 January 2015, the level of Lake
Sevan was less by 11 cm than it was documented 5 years ago, when the
maximum level was recorded in the summer of 2010.
Since 2004 no drop of water has been transferred from Spandaryan
Reservoir to Kechout Reservoir though Vorotan-Arpa Tunnel. Moreover,
no water is transferred from the Yeghegis River through "Arpa-Sevan"
tunnel, just the opposite - instead of flowing into Lake Sevan most
water flows back to the Yeghegis River to ensure the continuous
operation of numerous SHPPs constructed on it.
The suspension of Lake Sevan level was launched still in 2004 on the
eve of the operation of Vorotan Arpa Tunnel.
http://ecolur.org/en/news/sevan/spandaryan-reservoir-aid-to-lake-sevan-didnt-come-true/7094/