Canada’s vast and diverse landmass includes temperate rainforest, barren tundra, and grasslands. The impact of climate change on surface and groundwater is predicted to accelerate, and Canada, with 20% of the world’s freshwater, will see increasing drought, flooding, and extreme weather. Some regions will be particularly impacted by increasing average temperatures that lead to greater water lost due to evaporation and evapotranspiration. For example, the Peace-Athabasca Delta, which is reliant on seasonal flooding to recharge its biodiverse waters, has lost an average of 0.2% of its surface water annually since 1984. Sustainable Development Goal #6, Clean Water and Sanitation, focuses on sustainable water practices, and proper management of freshwater resources involves quantifying and evaluating the impact of long-term trends, which requires accurate and spatiotemporally consistent data. Terrestrial water storage anomalies derived from Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On provide consistent coverage throughout Canada and have been used to evaluate terrestrial water storage trends from 2002 onwards. The objective of this presentation is to assess long-term trends in evaporation and evapotranspiration within Canada using two meteorological and ecological assimilation datasets, namely the fifth generation ECMWF reanalysis (ERA5-Land, 0.1°×0.1° resolution), and the Ecological Assimilation of Land and Climate Observations (EALCO, 5-10 km resolution) model. Comparing GRACE/GRACE-FO terrestrial water storage anomalies (TWSA) with independently derived hydrological data provides insight into the varied hydrologic dynamics of Canada and can inform further analysis relating to sustainable management of freshwater in Canada.