Meet some of the Internet warriors who stayed calm during the crisis and became the first line of defense.
|Arun Ganesh, a Bangalore-based map analyst, immediately set to work creating the crowdsourced map on November 27 and 28. "It was an idea that started off with colleagues. We saw reports coming in about the flooding and we didn't have a clear picture of what was happening, on areas worst affected and so on. There was no granular idea on geographical conditions and we were really curious about the situation and decided to build a simple tool. It took us a day to put together, and we shared it on social media and people started picking it up. We wanted to use AA non-proprietary, open model (a software) using OpenStreetMap project where Chennai has already been mapped fairly well. We used this and elevation models from ISRO and quickly did an analysis of low lying areas - you'll see the darker areas on the map are low lying, we also used data from the UN which included analysis of satellite images of stagnated water.”|