This is a crowdsourcing mobile app for collecting and sharing water quality data. It was developed by members of the Global Lake Ecological Observatory Network (GLEON). While the app is called Lake Observer, it does allow users to submit data collected from wetlands, reservoirs and rivers/streams. Weather information can also be submitted. This app is free to download through the Apple App Store or through Google Play.

Keywords: crowdsourcing, water quality, measurements, monitoring, water, lake, stream, river, wetland, app