Hydrologic Characteristics of the Tigris River Lower Basin

Bagi Nomas, Hamdan; Kadhum Khalaf, Khulud

	Hydrologic Characteristics of the Tigris River Lower Basin
مجلة آداب البصرة
Article 11, Volume 11, Issue 72, 2015, Pages 259-284 PDF (0 K)
Authors
Hamdan Bagi Nomas; Khulud Kadhum Khalaf
Abstract
This paper argues that the annual and monthly discharge varies in the Tigris lower basin at downstream of Kut dam , Amarah , QalatSalih and Basra, as it reached 520 , 121 , and 36 m3/s respectively during the wet years period and it decreased to 414 , 111 , 38 and 35 m3 /s respectively during the normal years period. In the dry years, it decreased to 236, 55, 20 and 17 m3/s respectively. Seasonal discharge was also characterized by variation. For instance, during the flood period, its percentage was 72% whereas it is reduced to 28% during the dry period. In addition to that, monthly discharge varied: whereas the peak was during April and May when it was 754, 749, 135, 139, 44, 45, 41 and 42 m3/s respectively, the monthly discharge reached 425, 435, 134, 150, 49, 51, 48 and 43 m3/s, respectively, at the stations during the normal years. Discharge dropped to its lowest level in August. It was 367, 91, 39 and 36 m3/s respectively in the wet period, and 334, 76, 26 and 23 m3/s respectively during the normal years and 228, 51, 17 and 14 m3/s respectively in the dry years’ period. Thus, the flux should be controlled in order to comply with the requirements of development; this can be carried out by building suggested dams, especially Bakhma on the greater zab and fatha on Tigris north Tikrit.
Keywords
Hydrologic Characteristics of the Tigris River Lower Basin

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