www.iwmi.orgA water-secure world
Phot
o: M
anoj
Jay
asur
iya/
IWM
I
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
