Forest Observation System

The Forest Observation System (FOS) is an international cooperation to establish a global in-situ forest biomass database to support earth observation and to encourage investment in relevant field-based observations and science. The Forest Observation System provides well-curated biomass plot data in a unified format that is aggregated from tree level data consistently across different networks.

Key networks led from the School of Geography at Leeds – RAINFOR (, AfriTRON (, T-Forces (, and ForestPlots ( – are contributing to FOS.

Project website