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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Impacts of Climate Change on Water Resources in Diyala River Basin, Iraq
Author(s)
Nahlah Abbas1, Saleh A Wasimi1 and Nadhir Al-Ansari2
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DOI:10.17265/1934-7359/2016.09.009
Affiliation(s)
1. School of Engineering and Technology, Central Queensland University, Melbourne 3000, Australia
2. Department of Civil, Environmental and Natural Resources Engineering, Lulea University of Technology, Lulea 971 87, Sweden
ABSTRACT
Diyala River is the third
largest tributary of the Tigris River running 445 km length and draining an
area of 32,600 km2. The
river is the major source of water supply for Diyala City for municipal,
domestic, agriculture and other purposes. Diyala River Basin currently is
suffering from water scarcity and contamination problems. Up-to-date studies
have shown that blue and green waters of a basin have been demonstrating
increasing variability contributing to more severe droughts and floods
seemingly due to climate change. To obtain better understanding of the impacts
of climate change on water resources in Diyala River Basin in near 2046~2064 and distant future
2080~2100, SWAT (soil and
water assessment tool) was used. The model is first examined for its capability
of capturing the basin characteristics, and then, projections from six GCMs (general circulation
models) are incorporated to
assess the impacts of climate change on water resources under three emission
scenarios: A2, A1B and B1. The results showed deteriorating water resources
regime into the future.
KEYWORDS
Diyala River, SWAT model, blue water, green water, Iraq.
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