 The Watercycle Multimission Observation Strategy Evapotranspiration, WACMOS-ET, project aims to advance the development of land evaporation estimates on global and regional scales. It seeks to derive, validate, and compare existing evaporation retrieval algorithms driven by a common forcing dataset. Three commonly used process-based evaporation methodologies will be evaluated, Penman-Monteith algorithm behind the official Modi's evaporation product, PMMOD, the Global Land Evaporation Amsterdam Model, GLEAM, and the Priestley-Taylor Jet Propulsion Laboratory Model, PTGPL. The resulting global spatiotemporal variability of evaporation, the closure of regional water budgets, and discrete estimation of land evaporation components or sources, transpiration, interception loss, and direct soil evaporation will be investigated using river discharge data, independent global evaporation datasets, and results from previous studies. Additionally, Michelle et al., 2016, assessed the performance of these three models at local scales using measurements from eddy covariance towers and included in the assessment to This article was authored by D. G. Mirales, C. Jimenez, M. Jung, and others. We are article.tv, links in the description below.