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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Climate Change Impacts on Water Resources of Greater Zab River, Iraq
Author(s)
Nahlah Abbas1, Saleh A. Wasimi1 and Nadhir Al-Ansari2
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DOI:10.17265/1934-7359/2016.12.009
Affiliation(s)
1. School of Engineering and Technology, Central Queensland University, Melbourne 3000, Australia
2. Geotechnical Engineering, Lulea University of Technology, Lulea 971 87, Sweden
ABSTRACT
Greater Zab is the largest tributary of the Tigris River in Iraq where
the catchment area is currently being plagued by water scarcity and pollution
problems. Contemporary studies have revealed that blue and green waters of the
basin have been manifesting increasing variability contributing to more severe
droughts and floods apparently due to climate change. In order to gain greater
appreciation of the impacts of climate change on water resources in the study
area in near and distant future, SWAT (Soil and Water Assessment Tool) has been
used. The model is first tested for its suitability in capturing the basin
characteristics, and then, forecasts from six GCMs (general circulation models) with about
half-a-century lead time to 2046~2064 and one-century
lead time to 2080~2100 are incorporated
to evaluate the impacts of climate change on water resources under three
emission scenarios: A1B, A2 and B1. The results showed worsening water
resources regime into the future.
KEYWORDS
Greater Zab, SWAT, sensitivity, blue water, green water.
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