Assessment of Groundwater Recharge Under Changing Climatic Conditions in Alguwair Area, Northern Iraq

Mohammed Abdilfattah  Ali

Mohammed Abdilfattah Ali Department of Sciences, College of Basic Education, Shirqat, University of Tikrit, Tikrit, Iraq

Keywords: Groundwater recharge, Alguwair area, Northern Iraq, Soil and Water Assessment Tool (SWAT) model, Climate change impacts, Hydrogeological properties

Abstract

Water resources in the Alguwair region of Northern Iraq are largely dependent on groundwater, making effective management critical, especially under changing climate conditions. This study applied the SWAT model to estimate groundwater recharge and assess its sensitivity to climate variability. The model was calibrated and validated using hydrological data, and sensitivity analysis identified key recharge parameters. Results showed that shallow unconfined aquifers receive an average annual recharge of 350 mm, while deep confined aquifers receive 500 mm, influenced by hydrogeological characteristics and aquifer connections. Recharge contributed 34.4%-37.9% of total rainfall from 2016-2023, suggesting watershed characteristics, rather than rainfall variability, drive recharge patterns. These findings highlight the SWAT model’s utility in predicting sustainable groundwater management and could inform water resource policies for the region.

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References

[1] S. A. Abbas, Y. Xuan, and R. T. Bailey, "Assessing Climate Change Impact on Water Resources in Water Demand Scenarios Using SWAT-MODFLOW-WEAP," Hydrology, vol. 9, no. 10, p. 164, 2022.
[2] K. C. Abbaspour, J. Yang, I. Maximov, R. Siber, K. Bogner, J. Mieleitner, J. Zobrist, and R. Srinivasan, "Modelling Hydrology and Water Quality in the Pre-Alpine/Alpine Thur Watershed Using SWAT," Journal of Hydrology, vol. 333, pp. 413–430, 2007.
[3] S. Adhikari, L. Caron, B. Steinberger, J. T. Reager, K. K. Kjeldsen, B. Marzeion, and E. R. Ivins, "What Drives 20th Century Polar Motion?," Earth and Planetary Science Letters, vol. 502, pp. 126–132, 2018.
[4] M. A. Ali, S. A. Salih, and A. I. Hussain, "Groundwater Situation Before Production and After Production Stoppage in Al-Mishraq Sulfur Field-1, Northern Iraq," Iraqi Journal of Science, pp. 5095–5107, 2023.
[5] S. M. Awadh, H. Al-Mimar, and Z. M. Yaseen, "Groundwater Availability and Water Demand Sustainability Over the Upper Mega Aquifers of Arabian Peninsula and West Region of Iraq," Environment, Development and Sustainability, vol. 23, no. 1, pp. 1–21, 2021.
[6] A. Bauwe, P. Kahle, and B. Lennartz, "Evaluating the SWAT Model to Predict Streamflow, Nitrate Loadings and Crop Yields in a Small Agricultural Catchment," Advances in Geosciences, vol. 48, pp. 1–9, 2019.
[7] A. A. F. Beg and A. H. Al-Sulttani, "Spatial Assessment of Drought Conditions Over Iraq Using the Standardized Precipitation Index (SPI) and GIS Techniques," in Environmental Remote Sensing and GIS in Iraq, pp. 447–462, 2020.
[8] H. J. G. Diersch, FEFLOW: Finite Element Modeling of Flow, Mass and Heat Transport in Porous and Fractured Media. Berlin, Germany: Springer Science & Business Media, 2013.
[9] M. K. Goyal and R. Y. Surampalli, "Impact of Climate Change on Water Resources in India," Journal of Environmental Engineering, vol. 144, no. 7, p. 04018054, 2018.
[10] H. S. Hashim, Z. B. Hassan, and S. B. M. Drus, "Internet of Things: A Systematic Literature Review," Informatica, vol. 46, no. 8, 2022.
[11] W. H. Hassan and F. S. Hashim, "Studying the Impact of Climate Change on the Average Temperature Using CanESM2 and HadCM3 Modelling in Iraq," International Journal of Global Warming, vol. 24, no. 2, pp. 131–148, 2021.
[12] L. Hossard and P. Chopin, "Modelling Agricultural Changes and Impacts at Landscape Scale: A Bibliometric Review," Environmental Modelling & Software, vol. 122, p. 104513, 2019.
[13] Q. H. Jalut, N. L. Abbas, and A. T. Mohammad, "Management of Groundwater Resources in the Al-Mansourieh Zone in the Diyala River Basin in Eastern Iraq," Groundwater for Sustainable Development, vol. 6, pp. 79–86, 2018.
[14] T. Keenan and H. Cleugh, "Climate Science Update: A Report to the 2011 Garnaut Review," Centre for Australian Weather and Climate Research, Canberra, 2011.
[15] N. W. Kim, I. M. Chung, Y. S. Won, and J. G. Arnold, "Development and Application of the Integrated SWAT–MODFLOW Model," Journal of Hydrology, vol. 356, no. 1-2, pp. 1–16, 2008.
[16] S. J. Kollet and R. M. Maxwell, "Integrated Surface–Groundwater Flow Modeling: A Free-Surface Overland Flow Boundary Condition in a Parallel Groundwater Flow Model," Advances in Water Resources, vol. 29, no. 7, pp. 945–958, 2006.
[17] S. L. Markstrom, R. G. Niswonger, R. S. Regan, D. E. Prudic, and P. M. Barlow, "GSFLOW-Coupled Ground-Water and Surface-Water FLOW Model Based on the Integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular Ground-Water Flow Model (MODFLOW-2005)," US Geological Survey Techniques and Methods, vol. 6, p. 240, 2008.
[18] V. Nechifor and M. Winning, "Global Economic and Food Security Impacts of Demand-Driven Water Scarcity—Alternative Water Management Options for a Thirsty World," Water, vol. 10, no. 10, p. 1442, 2018.
[19] S. A. Salman, S. Shahid, T. Ismail, E. S. Chung, and A. M. Al-Abadi, "Long-Term Trends in Daily Temperature Extremes in Iraq," Atmospheric Research, vol. 198, pp. 97–107, 2017.
[20] R. Therrien, R. G. McLaren, E. A. Sudicky, and S. M. Panday, A Three-Dimensional Numerical Model Describing Fully-Integrated Subsurface and Surface Flow and Solute Transport: User Guide, 2010.
[21] Y. Wang, R. Jiang, J. Xie, Y. Zhao, D. Yan, and S. Yang, "Soil and Water Assessment Tool (SWAT) Model: A Systemic Review," Journal of Coastal Research, vol. 93, pp. 22–30, 2019.