10.26165/JUELICH-DATA/3GFM7N Rothfuss, Youri(Institute of Bio- and Geosciences, Agrosphere (IBG-3)) Jülich DATA 2026 Data supporting the following preprint in HESS: Rothfuss, Y., Le Gall, S., Brüggemann, N., Jahan, S., Javaux, M., Klaus, J., Vereecken, H., and van Dusschoten, D.: Online xylem water isotope monitoring and soil water content profiling reveal spatial root water uptake dynamics in sunflower. EGUsphere, 20261-30, https://www.doi.org/10.5194/egusphere-2026-1518, 2026. (2026-08-31) Rothfuss, Youri(Institute of Bio- and Geosciences, Agrosphere (IBG-3))