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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology

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Proc. IAHS, 364, 171-175, 2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
16 Sep 2014
Flood hazard maps in Matucana village under climate change scenarios
J. W. Cabrera Cabrera and L. F. Castillo Navarro Facultad de Ingeniería Civil, Universidad Nacional de Ingeniería, Lima25, Peru
Keywords: AOGCM, climate change, flood, hazard map, IPCC scenarios, debris flow, Matucana, Peru Abstract. Possible effects of climate change on floods magnitude and effects are discussed in this document based on existing data and projected changes in precipitation until 2099. This methodology is applied to Matucana Village, which suffers the effects of floods and debris flows. First, historical peak precipitation, fitted to Gumbel distribution, was used, After that, percentage projected changes of precipitation were used to obtain the new mean precipitation to each period 2010–2039, 2040–2069 and 2070–2099; these mean precipitations define a new Gumbel distribution for every time period. Then, projected maximal precipitations to 100 years of return period are estimated and the corresponding peak flow hydrographs were built. Finally, hazard maps are plotted. This application is possible because Matucana is located in a climatologically homogeneous basin. The final results suggest an important increase in magnitude and affected area by floods in the next 90 years under the A1FI emission scenario.

Citation: Cabrera Cabrera, J. W. and Castillo Navarro, L. F.: Flood hazard maps in Matucana village under climate change scenarios, Proc. IAHS, 364, 171-175,, 2014.
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