India to survey the entire country with drones, artificial intelligence and big data
Karnataka, Haryana, Maharashtra and the Ganga basin is being surveyed and will take 2 years to finish.


representational image. credit: Wikipedia[/caption]The survey is currently in progress in Karnataka, Haryana, Maharashtra and the Ganga basin. "The entire Ganga basin from the beginning to the end, 25 km from either sides of the banks is being mapped with an accuracy of 10 cm," said Prof Sharma.He stressed the need to have such a digital map. "Even today we don't have a digital map of India of sufficient accuracy, but this (the new digital map being prepared) is (going to be) the basis for everything you do, whether we have to lay down train tracks, lay a road, put up a hospital, cleaning up Ganga, cleaning up Cauvery or any kind of development and planning," he said.The official clarified to a question that the Indian Space Research Organisation (ISRO) was not part of the programme. "This is a different technology. Satellite produces image, but this one is based on drones. This is based on two technologies because you get higher resolution with that. It is not just getting an image by flying the drone. A map is different from an image. We have to produce a map which takes into account the curvature," Prof Sharma said.Speaking about the continuously operated reference system, he said the Survey of India has a reference point at every 20 km. "Now with the digital technology, each of these points you put actually a beacon...a stick...a digital station... with the help of these digital stations, whose coordinates are wellestablished, even using your smart phones you can do your mapping with an accuracy of 10 cm," according to him.Digital map is different from GPS (Global Positioning System), he noted.While the GPS may have an accuracy of a few metres, the planned digital map — with these reference points at every 20 km — increases the accuracy manifold. "So you can do mapping as you go up and down, walk around with a resolution of 10 cm or better," the official said.

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