<p dir="ltr">The Upper Isar River survey is part of the EU Horizon project <a href="https://uawos.dtu.dk/" target="_blank">UAWOS</a>. All datasets belonging to the UAWOS project can be accessed <a href="https://data.dtu.dk/projects/UAWOS/164815" rel="noreferrer" target="_blank">here</a>. The Upper Isar River survey in Munich Germany was conducted in February 2024. The primary purpose was to validate the new UAWOS hydrometry payloads against in-situ ground truth and legacy UAS hydrometry payloads. The dataset contains water surface elevation, bathymetry, land elevation, and water surface velocity datasets collected using different drone-borne and in-situ sensors. Data is shared at three processing levels: The raw data (Level 1), processed point data (Level 2), and point data referenced to a reference river centerline/reference cross section lines (Level 3). Specialized software is required to process most Level 1 data, while Level 2/3 data comes in standard comma-separated ASCII files. More details about the different datasets and processing levels are included in the dataset readme file and the readme files belonging to the individual datasets.</p>