www.iwmi.orgA water-secure world

Phot

o: M

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Jay

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IWM

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Using satellite data to enhance flood-risk management

Giriraj AmarnathJanuary 17, 2014Colombo, Sri Lanka

www.iwmi.orgA water-secure world

www.iwmi.orgA water-secure world

Flood events in the last 10 years• 23 flood occurrences• 500 lives lost• 9 million people affected• economic loss of USD 1 billion

www.iwmi.orgA water-secure world

www.iwmi.orgA water-secure world

What can be done to reduce impact?

If we can predict more accurately where and when floods will occur, and how big they will be, opportunities for mitigation will be enhanced.

Digital geospatial flood inundation mapping is a powerful new approach for flood response and control that shows floodwater extent and depth on the land surface.

www.iwmi.orgA water-secure world

www.iwmi.orgA water-secure world

Space technology can help manage flooding

• Satellite data has been used to estimate flood frequency and extent covering entire Sri Lanka.

• Flood impact on agriculture studied at different scales.

• Knowledge generated here will support Disaster Management Centre and the Irrigation Department for mitigation, preparedness and flood insurance index product

Flood Risk Products

Agri. flooding in Polonnaruwa

www.iwmi.orgA water-secure world

www.iwmi.orgA water-secure world

ස්තූතියි Thank you

நன்றி�Applying technology to

water management