Linda See

TL;DR: A conceptual overview of the LACO-Wiki system is presented and the main validation workflow is described, in which the user uploads the map for validation, creates a validation sample, carries out the sample interpretation and generates a report detailing the accuracy assessment.

TL;DR: It is suggested that, at least for simple tasks, the geographical origin of VGI volunteers has little impact on their ability to complete image classifications.

TL;DR: In this article , a reference data set and a prototype of a globally consistent forest management map with high spatial detail on the most prevalent forest management classes such as intact forests, managed forests with natural regeneration, planted forests, plantation forest (rotation up to 15 years), oil palm plantations, and agroforestry are presented.

TL;DR: In this article, a citizen observatory for flood risk management has been proposed and is currently being implemented in the Brenta-Bacchiglione catchment, where citizens are involved through monitoring water levels and obstructions and providing other relevant information through mobile apps, where data are assimilated with other sensor data in a hydrological-hydraulic model used in early warning.

TL;DR: This Special Issue aims to capture the main trends in VGI research based on 16 original papers, and distinguishes between two main areas, i.e., those that deal with the characteristics of VGI and those focused on applications of V GI.