Researchers developed an affordable way to monitor rivers and stream flow, 24/7, using open source products.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/water-resilience-flows
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/science-daily
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/costa-rica
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-management
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/droughts
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrology