“…Multisensor estimates combine the high spatial and temporal coverage of the radar data with the high fidelity of the gauge data and hence represent the state‐of‐the‐art in operational QPE. However, experiments to validate these QPEs often take place over small regions and on time scales shorter than a few months (e.g., Seo et al., 2018; Spies et al., 2018; Willie et al., 2017).…”