GIS in Water Resources Fall 2012 “Analysis of Cenapred’s Rainfall- Runoff methodology for the...

GIS in Water Resources Fall 2012

“Analysis of Cenapred’s Rainfall-Runoff methodology for the estimation of streamflow values in the Central Region of Veracruz”

Austin, Texas November 27, 2012

GIS in Water Resources

Carlos Galdeano Alexandres

Project Scope

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Project Scope

Analyze if Mexico’s National Center for Disaster Prevention (Cenapred) suggested Rainfall-Runoff Methodology is valid to estimate the magnitude of the streamflow for several return periods (T = 2, 5, 10, 25, 50, and 100 years) in the Central Region of Veracruz.

DATA:•Mexico’s National Water Commission (Conagua) •Mexico’s National Institute of Geography and Statistics (Inegi).

Background

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BackgroundRegion

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BackgroundFloods in the Region (almost every year)

Methodology

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MethodologyGeneral Methodology

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Streamflow Stations Methodology (Frequency analysis)

Cenapred’s Rainfall-Runoff Methodology

Streamflow Stations Location

Precipitation Stations Location

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MethodologyCenapred’s Rainfall-Runoff Methodology

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Watersheds of each discharge Streamflow station

Slope for each watershed (weighted mean)

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MethodologyCenapred’s Rainfall-Runoff Methodology

From the Precipitation Stations

0.1 (dry) < R < 0.8 (humid).

Slope, Length, Area of

influence of each

watershed

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MethodologyCenapred’s Rainfall-Runoff Methodology

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Flow Rates Tool

Results and Conclusions

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Results and Conclusions

Working on them!!

Aknowledgments

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1.Consejo Nacional de Ciencia y Tecnología (Conacyt)

2.Centro Nacional para la Prevención de Desastres (Cenapred)

3.Comison Nacional del Agua (Conagua)

4.Instituto Nacional de Geografía y Estadística (INEGI)

5.Prof. David Maidment, Prof. David Tarboton, Prof. Ayse Kilic and T.A. Gonzalo Espinoza

Aknowledgments

GIS in Water Resources Fall 2012