Satellite images processed by IWMI show extent of inundation in Southern Province
(Colombo, 7 October 2015). In response to the extensive flooding in the south of Sri Lanka, the International Water Management Institute has published a series of maps to help plan relief efforts.
For the first time, maps have been prepared by a consortium consisting of IWMI, the Disaster Management Centre of the Ministry of Disaster Management (MoDM) and the UN’s space based information service for disaster management and emergency response (UN-SPIDER). These show the flood situation using real-time, cloud-free satellite images provided by the Japanese Aerospace Exploration Agency (JAXA). The maps are being used by the DMC Emergency Operation Centre to support rapid impact assessment and disaster response. The information is also shared with other relevant authorities.
“This partnership has enabled us to deliver accurate and timely maps which we hope can provide valuable information for flood relief,” said Giriraj Amaranth who leads IWMI’s flood mapping research. “We believe that satellite data has huge potential in this regard and hope that we can play a useful role in rapid emergency response mapping. Last Saturday we accompanied the DMC on a field mission to the affected districts to evaluate the scale of flooding and its impact on paddy fields. The information collected in the field will be used to develop a situation report.”













Population pressure and increasing water competition in a changing climate require us to take stock of the availability and use of water across scales. Water availability not only influences farmers’ commercial prospects but also irrigation-related enterprises and agri-businesses. Greater water scarcity could jeopardize irrigation and agricultural markets while excessive water use can lead to declining ecosystems, water quality and soil health. IWMI advises development partners and the public and private sectors on all aspects of water resource availability and use through a variety of advanced modeling and remote-sensing products and tools, including
The ability of farmers to engage in or expand irrigation depends on the prevailing socioeconomic, ecological and political contexts, which are often complex, non-linear and changeable. Overcoming systemic barriers to farmer-led irrigation development while taking advantage of existing opportunities
A lack of affordable credit, particularly for women and resource-poor farmers, is one of the main barriers to expanding farmer-led irrigation in low- and middle-income countries. But
Scaling farmer-led irrigation requires strengthening human capacity and knowledge exchange among all actors and stakeholders involved. IWMI takes an action research approach, working with national and international research institutions, governments, extension agents and public and private organizations to co-develop the scaling ecosystem and strengthen capacity to drive scaling networks and collective action. We support the