mHM in Karun | Iran

Karun River Basin

The largest river by discharge in Iran, the Karun River's watershed covers 65,230 square kilometers. Originating from the Zagros Mountains of western Iran, it has an average discharge of 575 cumecs. Karun is Iran's most effluent and only navigable river. The Karun has been an important route for the transport of petroleum to the Persian Gulf, and remains an important commercial waterway.

Apart from indispensable navigation value, water from the Karun provides irrigation to over 280,000 hectares of the surrounding plain. Also, there are a number of dams on the Karun River, mainly built to generate hydroelectric power and provide flood control. The Masjed Soleyman, Shahid Abbaspour, and Karun-3 dams each generate 1000 - 2000 MW of power to service the peaking power sector of Iran's electricity grid.

Therefore, improved water management in a basin of such national importance would help influence larger group of end-users. A seasonal prediction system from SaWaM would be a significant aid to the water managers of the Karun basin.

Karun river basin study area
(Top: background image source -
Model resolution: 0.125 degree (~13 kms x 13 kms)
Domain size: 72,585 sq.kms., Computational size: 542 cells.
Qrouted - routed streamflow; SM_Lall - soil moisture averaged over all layers