River Flood Hazard Modeling: Forecasting Flood Hazard for Disaster Risk Reduction Planning

Murphy Ponce Mohammed


The objective of the study is to create a flood hazard model of Tarlac River and to calibrate the model based on data gathered from the Philippine Atmospheric Geophysical and Astronomical Services Administration. The study employed analytical method wherein the 1D flood modeling was utilized. GIS, DEM data, rainfall data, river analysis system, HEC-GeoRAS, hydrologic modeling system, and HEC-GeoHMS were utilized. The different flood models revealed that Tarlac River is not expected to be overtopped by flood water as regards the different extreme rainfall events considered in the present study. The RAS model simulation was based on the concept that there is no base flow observed within the river reach before the occurrence of any extreme rainfall event. Henceforth, there is still no 100 percent assurance that the river reach will not be overtopped with the occurrence of initial base flow in combination with the occurrence of higher extreme rainfall events. Further studies or investigations should be delved into such combination of events. Possible levee breach of the Tarlac River as well as the possible incorporation of flood mitigating interventions in future modeling scenarios can be likewise considered.


Flood Hazard Modeling; Flood Modeling; River Analysis.


Mohammed, M.P. “Disaster Risk Reduction and Management of Tarlac City.” Procedia Engineering (February 22, 2018): Volume 212, 77-84. doi:10.1016/ j.proeng.2018.01.011.

Priscoli, J.D., Stakhiv, E. “Water-related Disaster Risk Reduction (DRR) Management in the United States: Floods and Storm Surges.” Water Policy (March 1, 2015): Volume 17, pp. 58-88. doi: 10.2166/wp.2015.004.

Geaves, L.H., Penning-Rowsell, E.C. “Flood Risk Management as A Public or A Private Good, and the Implications for Stakeholder Engagement.” Environmental Science & Policy (June 20, 2015): Volume 55, pp. 281–291. http://dx.doi.org/10.1016/j.envsci.2015.06.004.

Population of Region III - Central Luzon (Based on the 2015 Census of Population). Available online: http://www.psa.gov.ph/content/population-region-iii-central-luzon-based-2015-census-population (Accessed on 1 June 2016).

Bedient, P.B., Huber, W.C., Vieux, B.E.. “Hydrology and Floodplain Analysis 4th Edition” (2010): Pearson Education South Asia Pte Ltd., Jurong Singapore.

Heimhuber, V. “GIS Based Flood Modeling as Part of an Integrated Development Strategy for Informal Settlement.” Published Thesis Technical University of Munich. Available online: http://www.hydrologie.bgu.tum.de/fileadmin/w00bpg/www/ Christiane1/Lehre/Studentische_arbeiten/master_thesis_heimhuber_final.pdf (Accessed on 20 December 2013).

Liu, L., Liu, Y., Wang, X., Yu, D., Liu, K., Huamg, H., Hu, G. “Developing an Effective 2-D Urban Flood Inundation Model for City Emergency management Based on Cellular Automata.” Natural Hazards and Earth System Sciences (March 4, 2015): Volume 15, pp. 381-391. doi:10.5194/nhess-15-381-2015.

Zheng, F., Leonard, M., Westra, S. “Efficient Joint Probability Analysis of Flood Risk.” Journal of Hydroinformatics (February 9, 2015): pp 584 to 597. doi:10.2166 /hydro.2015.052.

Abedin, S.J.H. “GIS Framework for Spatiotemporal Mapping of Urban Flooding and Analyze Watershed Hydrological Response to land Cover Change.” Published Thesis (December 1, 2014). University of Nevada. Nevada, United State of America.

Mohammed, M.P. “Flood Hazard Zoning of Tarlac City: Towards the Development of Flood Overlay Zones and Provision.” Procedia Engineering (February 22, 2018): Volume 212, 69-76. doi:10.1016/ j.proeng.2018.01.010.

Chow, V.T., Maidment, D.R., Mays, L.W. “Applied Hydrology” (1988): McGraw-Hill, Inc., United States of America.

Boonrawd, K., Jothityangkoon, C. “Mapping Temporal Extent of Chiang Mai Floods Using Coupled 1-D And Quasi 2-D Floodplain Inundation Models.” Songklanakarin Journal of Science and Technology (2015): Volume 37 (2), 171-181.

Klemas, V. “Remote Sensing of Floods and Flood-Prone Areas: An Overview.” Journal of Coastal Research (December 24, 2014): Volume. 31, No. 4. doi: 10.2112/JCOASTRES-D-14-00160.1.

Ghimire, S. “Application of a 2d Hydrodynamic model for Assessing Flood Risk from Extreme Storm Events.” Climate (November 5, 2013): Volume 1, pp. 148-162. doi:10.3390/cli1030148.

Meesuk, Vorawit, Zoran Vojinovic, Arthur E. Mynett, and Ahmad F. Abdullah. “Urban Flood Modelling Combining Top-View LiDAR Data with Ground-View SfM Observations.” Advances in Water Resources 75 (January 2015): 105–117. doi:10.1016/j.advwatres.2014.11.008.

Birkholz, S., M. Muro, P. Jeffrey, and H.M. Smith. “Rethinking the Relationship Between Flood Risk Perception and Flood Management.” Science of The Total Environment 478 (April 2014): 12–20. doi:10.1016/j.scitotenv.2014.01.061.

Abbas, Azhar, T.S. Amjath-Babu, Harald Kächele, Muhammad Usman, and Klaus Müller. “An Overview of Flood Mitigation Strategy and Research Support in South Asia: Implications for Sustainable Flood Risk Management.” International Journal of Sustainable Development & World Ecology 23, no. 1 (November 24, 2015): 98–111. doi:10.1080/13504509.2015.1111954.

Piper, Graham. “Balancing Flood Risk and Development in the Flood Plain: The Lower Thames Flood Risk Management Strategy.” Ecohydrology & Hydrobiology 14, no. 1 (2014): 33–38. doi:10.1016/j.ecohyd.2014.02.004.

Bubeck, P., W. J. W. Botzen, and J. C. J. H. Aerts. “A Review of Risk Perceptions and Other Factors That Influence Flood Mitigation Behavior.” Risk Analysis 32, no. 9 (March 6, 2012): 1481–1495. doi:10.1111/j.1539-6924.2011.01783.x.

Mehebub, Sahana, Ahmed Raihan, Hossain Nuhul, and Sajjad Haroon. “Assessing Flood Inundation Extent and Landscape Vulnerability to Flood Using Geospatial Technology: A Study of Malda District of West Bengal, India.” Forum Geografic XIV, no. 2 (June 30, 2015): 156–163. doi:10.5775/fg.2067-4635.2015.144.d.

Butt, Amna, Aaisha Khan, and Sheikh Saeed Ahmad. “Evaluation of Increasing Susceptibility of Areas Surrounding Kala Bagh Dam, Pakistan to Flood Risk : A Review.” Middle East Journal of Business 10, no. 2 (April 2014): 27–32. doi:10.5742/mejb.2015.92635.

Demir, Vahdettin, and Ozgur Kisi. “Flood Hazard Mapping by Using Geographic Information System and Hydraulic Model: Mert River, Samsun, Turkey.” Advances in Meteorology 2016 (2016): 1–9. doi:10.1155/2016/4891015.

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DOI: 10.28991/cej-2019-03091413


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