Geoinformatics Unit

Preliminary flood mapping after the Cyclone Fani in India

May 14, 2019

On early May 2019, the Cyclone Fani hit the central east coast of India flooding several areas. The Geoinformatics Unit, RIKEN Center for Advanced Intelligence Project conducted a preliminary mapping of the affected areas using earth observation data. The Sentinal Asia Program provided the high-resolution ALOS-2 PALSAR-2 data used in this analysis.

To detect the flooded areas, we carried out a change detection analysis using a pre-event SAR data acquired on March 2, 2019, and a post-event SAR data from May 5, 2019. The image below shows the comparison of the pre- and post-event images, and the detected flooded areas (blue segments) in the central east coast of India.

Further Information

Sentinel Asia LINK


The information contained in the map is for general information purposes only. The accuracy of the analysis is not assessed yet. The information is provided by Geoinformatics Unit and while we endeavour to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the map or the information, products, services, or related graphics contained on it for any purpose. Any reliance you place on such information is therefore strictly at your own risk.