A multi-river contactless river water level dataset using UAS radar

Le résumé fourni par la source

Spatially distributed river water surface elevation (WSE) observations are important for hydrological monitoring, hydraulic modelling, and flood assessment, but conventional gauging networks provide limited spatial coverage.Here, we present a multi-river UAS hydrometry dataset comprising WSE observations collected across eight rivers in Europe and Africa between 2023 and 2026.The dataset integrates UAS-based radar altimetry using LX80 and legacy IWR1443 sensors, complementary low-altitude UAS WSE measurements, in-situ RTK/PPK GNSS observations, and SWOT Pixel Cloud observations.Both raw sensor data and processed, georeferenced WSE observations are provided together with acquisition and spatial metadata.The dataset includes different radar mounting configurations, including nongimballed, unstabilized gimbal-mounted, and stabilized gimbal-mounted systems, enabling assessment of configuration-dependent measurement uncertainty.Technical validation against independent UAS, in-situ, and satellite observations demonstrate generally good consistency for stabilized configurations while highlighting additional uncertainties associated with sensor stabilization and attitude correction.This dataset provides a multi-environment benchmark for evaluating, validating, and developing UAS-based river WSE measurement and processing methods.

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