RADET time series dataset for validation of satellite-based evapotranspiration at in situ flux sites

Overview This dataset includes daily and monthly evapotranspiration (ET) time series data produced by the RADET model, extracted at locations corresponding to in situ flux measurement sites. The in situ flux observations used for evaluation are described in Volk et al. (2023) (https://doi.org/10.1016/j.agrformet.2023.109307), with the corresponding dataset available at https://zenodo.org/records/7636781. RADET ET estimates were derived from satellite observations sampled using flux footprints and generated at both daily and monthly temporal resolutions. The resulting time series are consistent with those used in the OpenET Phase II Intercomparison, as described in Volk et al. (2024) (https://doi.org/10.1038/s44221-023-00181-7), with the associated dataset available at https://zenodo.org/records/10119477. Description of the data and file structure The dataset is distributed as a compressed (zipped) archive and must be downloaded and extracted prior to use. The archive contains the following files: 1. Daily RADET ET time-series file: A comma-separated values (CSV) file containing daily RADET ET estimates (mm day⁻¹) for each flux site at satellite overpass dates. 2. Monthly RADET ET time-series file: A CSV file containing monthly aggregated RADET ET estimates (mm month⁻¹) for the same set of flux sites. Metadata describing the flux sites included in this dataset (e.g., site identifiers, locations, and land-cover information) are available from https://zenodo.org/records/7636781 and https://zenodo.org/records/10119477. The corresponding in situ flux measurements are not included in this archive and should be obtained from the original data sources (https://zenodo.org/records/7636781).