Articles | Volume 21, issue 6
https://doi.org/10.5194/nhess-21-1739-2021
https://doi.org/10.5194/nhess-21-1739-2021
Research article
 | 
02 Jun 2021
Research article |  | 02 Jun 2021

Assessing climate-change-induced flood risk in the Conasauga River watershed: an application of ensemble hydrodynamic inundation modeling

Tigstu T. Dullo, George K. Darkwah, Sudershan Gangrade, Mario Morales-Hernández, M. Bulbul Sharif, Alfred J. Kalyanapu, Shih-Chieh Kao, Sheikh Ghafoor, and Moetasim Ashfaq

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Cited articles

AECOM: The Impact of Climate Change and Population Growth on the National Flood Insurance Program through 2100, available at: https://www.aecom.com/content/wp-content/uploads/2016/06/Climate_Change_Report_AECOM_2013-06-11.pdf (last access: 12 October 2019), 2013. 
Akaike, H.: A new look at the statistical model identification, IEEE Transactions on Automatic Control, 19, 716–723, https://doi.org/10.1109/TAC.1974.1100705, 1974. 
Alfieri, L., Salamon, P., Bianchi, A., Neal, J., Bates, P., and Feyen, L.: Advances in Pan-European Flood Hazard Mapping, Hydrol. Process., 28, 4067–4077, https://doi.org/10.1002/hyp.9947, 2014. 
Alfieri, L., Burek, P., Feyen, L., and Forzieri, G.: Global warming increases the frequency of river floods in Europe, Hydrol. Earth Syst. Sci., 19, 2247–2260, https://doi.org/10.5194/hess-19-2247-2015, 2015a. 
Alfieri, L., Feyen, L., Dottori, F., and Bianchi, A.: Ensemble Flood Risk Assessment in Europe Under High End Climate Scenarios, Global Environ. Change, 35, 199–212, https://doi.org/10.1016/j.gloenvcha.2015.09.004, 2015b. 
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We studied the effect of potential future climate change on floods, flood protection, and electricity infrastructure in the Conasauga River watershed in the US using ensemble hydrodynamic modeling. We used a GPU-accelerated Two-dimensional Runoff Inundation Toolkit for Operational Needs (TRITON) hydrodynamic model to simulate floods. Overall, this study demonstrates how a fast hydrodynamic model can enhance flood frequency maps and vulnerability assessment under changing climatic conditions.
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