Something I came across for flood mapping chennai UN needs help in mapping flooded areas in Chennai city:
I work with UNOSAT, part of the UN institute for training and research in Geneva. We mainly work with mapping disasters, both man-made and natural. Here are two maps we have produced so far for the recent floods in Chennai: http://www.unitar.org/unosat/node/44/2312 http://www.unitar.org/unosat/node/44/2311 As you can see, the waters within the city limits are hard to identify with our satellite sensors. They work through clouds and even during night but goes haywire with concrete. What we are looking for is mainly pictures to assist us with ground truth. We have our own free mobile app called UN-ASIGN, available in all platforms. https://play.google.com/store/apps/details?id=ansur.asign.un https://www.microsoft.com/…/store/apps/un-asign/9nblgggzk5qq <https://www.microsoft.com/en-us/store/apps/un-asign/9nblgggzk5qq> https://itunes.apple.com/ke/app/un-asign/id507125097… <https://itunes.apple.com/ke/app/un-asign/id507125097?mt=8&ign-mpt=uo%3D4> This app lets people to take pictures which are automatically geocoded with lat,long and uploaded to our live map online. This will not only help us improve the accuracy of satellite detected waters, but also for common public and government (if they would) to learn more about the extent of situation from the ground. A small article can be found here: http://geoawesomeness.com/disaster-can-help/ I appreciate any help we can get, and since its my hometown, I am taking personal efforts to collect more data from any source I can. Even a single picture adds to the world map and makes a difference. Thanks a lot ! Please feel free to mail back if you have any questions jollyly...@gmail.com Regards, Srinivas Kodali www.lostprogrammer.com *"Not everyone who wanders is lost, I am probably a bit"*
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