flooding in san salvador

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Flooding in San Salvador Carlos Felipe Gutierrez Fall 2010

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Flooding in San Salvador. Carlos Felipe Gutierrez Fall 2010. Outline. The problem Objectives Obtaining main drainages Data Acquisition Analysis What was achieved What has to be done . The Problem. Severe flooding causes fatalities and property damages every year - PowerPoint PPT Presentation

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Page 1: Flooding in San Salvador

Flooding in San Salvador

Carlos Felipe GutierrezFall 2010

Page 2: Flooding in San Salvador

Outline

• The problem• Objectives• Obtaining main drainages• Data Acquisition• Analysis• What was achieved• What has to be done

Page 3: Flooding in San Salvador

The Problem

• Severe flooding causes fatalities and property damages every year

• Overpopulation of the city from 0.5 million to 1.5 million

• People living in constant danger

Page 4: Flooding in San Salvador
Page 5: Flooding in San Salvador

Objectives

• Identify main drainage rivers

• Identify major flood spots

• Obtain values of rainfall that would cause flood for a particular place

Page 6: Flooding in San Salvador

Obtaining Main Drainages

Page 7: Flooding in San Salvador

Include a basemap

Page 8: Flooding in San Salvador

Main Drainage of the Metropolitan Area of San Salvador

Page 9: Flooding in San Salvador

Data Acquisition

• National Service of Territorial Studies (SNET)

• Very limited data:- 1 stream gage station- 3 continuous rain gage stations- 3 intermittent rain gage stations

• Bureaucracy• Reading studies made by SNET (Water

related disasters)

Page 10: Flooding in San Salvador
Page 11: Flooding in San Salvador

Analysis

Page 12: Flooding in San Salvador

Flood spots

Page 13: Flooding in San Salvador

Which rain stations use?

Page 14: Flooding in San Salvador

Rain quantity creates floods

http://www.youtube.com/watch?v=ue1vJPS7cPs

Page 15: Flooding in San Salvador

Not always

Page 16: Flooding in San Salvador

What was achieved

• Identified the drainage rivers-Acelhuate River and Las Cañas River-Manmade drainages were not available for me

• Identified major flood spots-La Malaga, La Vega, Santa Anita-Comunidad Tutunichapa-Soyapango close to Las Cañas River-Colonia Escalon, Mejicanos (North west)

• Realized how limited the data is

Page 17: Flooding in San Salvador

What needs to be done

• Stream gages throughout the city• 24 hour continuous rain gages• Estimate how the impervious cover is growing• Make the data available!!!• More strict design

Page 18: Flooding in San Salvador

Question?

• https://webspace.utexas.edu/cfg328/www/Term%20Paper.htm

[email protected]