gis in water resources fall 2012 “analysis of cenapred’s rainfall- runoff methodology for the...
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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
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Project Scope
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GIS in Water Resources Fall 20123
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).
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Background
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GIS in Water Resources Fall 20125
BackgroundRegion
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GIS in Water Resources Fall 20126
BackgroundFloods in the Region (almost every year)
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Methodology
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GIS in Water Resources Fall 2012
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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GIS in Water Resources Fall 2012
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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GIS in Water Resources Fall 2012
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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GIS in Water Resources Fall 2012
MethodologyCenapred’s Rainfall-Runoff Methodology
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Flow Rates Tool
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Results and Conclusions
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GIS in Water Resources Fall 201213
Results and Conclusions
Working on them!!
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Aknowledgments
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GIS in Water Resources Fall 201215
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
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GIS in Water Resources Fall 2012