IWMI maps to aid emergency response
Last month saw Chennai’s wettest November in a century. Home to 4.3 million people, the South Indian city’s rainfall of 490 mm on 1 December was the highest in 100 years. The result has been widespread flooding with many parts of the conurbation under water. Over 250 people are feared dead, with many more made homeless. On Thursday Prime Minister of India Narendra Modi visited the submerged state capital and adjoining areas, and announced an immediate relief fund of Rs. 1000 crore (USD 300 million). Other areas of Tamil Nadu and Andhra Pradesh are also affected by floodwater.
IWMI is a member of the Sentinel Asia Joint Project Team (JPT) and in collaboration with the Japan Aerospace Exploration Agency (JAXA) and in association with Indian Space Research Organization (ISRO) consequently has activated its international disaster charter to prepare emergency response maps in support relief and rescue operations. IWMI has already provided flood situation maps for 11th and 24th November using the Sentinel-1 satellite data provided by European Space Agency.
IWMI is providing maps to the Chief Secretary, Govt. of Tamil Nadu, National Disaster Response Force and number of international agencies including UNOCHA, ReliefWeb and UNSPIDER.
See the maps here:

Useful links:
[fancy-ul style=”arrow-type3-list” variation=”blue”]- https://www.disasterscharter.org/web/guest/activations/-/article/other-in-india
- http://reliefweb.int/organization/iwmi
Read more about IWMI’s flood mapping work here:
[fancy-ul style=”arrow-type3-list” variation=”blue”] [/fancy-ul]Read about the CGIAR Research Program on Water Land and Ecosystems here:
[fancy-ul style=”arrow-type3-list” variation=”blue”] [/fancy-ul]The maps and data sets are also being used by the insurance company AON Benfield to estimate flood insured losses, and the Vellore Institute of Technology which is working closely with Government of Tamil Nadu on relief measures including medical camps to help mitigate the spread of water-borne diseases.
For more information please contact Amarnath Giriraj
This work is joint supported by:





























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