Coarse Filter Monitoring: HydroPatterns Project Report

The ABMI is developing new coarse-filter monitoring using repeating, open-access satellite Earth Observation data streams to advance the value and rigour of environmental monitoring on the Alberta landscape. The first dataset under development is Open Surface Water Dynamics (referred to as HydroPatterns). This indicator analyzes the spatial and temporal dynamics of open surface water bodies. While conceptually similar to hydroperiod, HydroPatterns has a broader focus, encompassing all lentic (standing) water bodies. In this project, the ABMI succesfully developed a fully automated, scalable, efficient, and reproducible workflow by integrating open-access Sentinel imagery, Google Earth Engine, and machine learning techniques. The model was tested in two ecological distinct study areas representing prairie and boreal regions, achieving over 90% overall accuracy across both sites. This technical report provides a detailed description of the HydroPatterns pilot project including the study areas, design, results, conclusions, and recommendations.