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Evaluation of Storm Runoff in Wadi Hauran, Western Iraq
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-6790-2653
2017 (English)In: Journal of Environmental Hydrology, ISSN 1058-3912, E-ISSN 1996-7918, Vol. 25, 6Article in journal (Refereed) Published
Abstract [en]

Arid and semi arid regions are characterized by low frequency monthly rainfall events and high evaporation during the remaining dry days. Utilizing monthly rainfall means for water balance calculation risks a high error margin. Even when daily rainfall analysis methods are used to evaluate the resulting runoff in a valley course, errors may still be committed when wrong values are assigned to important field elements such as soil cover type, vegetation and land use. Accordingly and when the Soil Conservation Service method (SCS) is applied, single storm rainfall and validation of the estimated Curve Number (CN) value using valley flow measurements is necessary. The evaluation of annual runoff volume in a major valley in the Western Iraqi desert using the SCS method applied to single rainfall storm events and validated by actual historical runoff measurements has revealed that Wadi Hauran would exhibit no runoff flow in one year out of three and that runoff may exceed 69 mm depth in a single water year but the average depth for those years with runoff events is only 11.1 mm

which amounts to about 64 Mm3 at a location in the center of its catchment area.

Journal

Place, publisher, year, edition, pages
International Association for Environmental Hydrology , 2017. Vol. 25, 6
Keyword [en]
Iraq;Hauran, Western Desert
National Category
Engineering and Technology Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-64085OAI: oai:DiVA.org:ltu-64085DiVA: diva2:1110546
Note

Validerad;2017;Nivå 1;2017-06-19 (andbra)

Available from: 2017-06-15 Created: 2017-06-15 Last updated: 2017-07-05Bibliographically approved

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