Hydrology and Earth System Sciences
Hydrology and Earth System Sciences
HESS
Articles | Volume 30, issue 4
Articles | Volume 30, issue 4
https://doi.org/10.5194/hess-30-965-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-30-965-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 30, issue 4
Research article
 | 
18 Feb 2026
Research article |  | 18 Feb 2026

Quantifying evaporation of intercepted rainfall: a hybrid correction approach for eddy-covariance measurements

Stefanie Fischer, Ronald Queck, Christian Bernhofer, and Matthias Mauder

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Cited articles

Baldocchi, D., Falge, E., Gu, L., Olson, R., Hollinger, D., Running, S., Anthoni, P., Bernhofer, C., Davis, K., Evans, R., Fuentes, J., Goldstein, A., Katul, G., Law, B., Lee, X., Malhi, Y., Meyers, T., Munger, W., Oechel, W., Paw, K. T., Pilegaard, K., Schmid, H. P., Valentini, R., Verma, S., Vesala, T., Wilson, K., and Wofsy, S.: FLUXNET: A New Tool to Study the Temporal and Spatial Variability of Ecosystem – Scale Carbon Dioxide, Water Vapor, and Energy Flux Densities, Bull. Amer. Meteor. Soc., 82, 2415–2434, https://doi.org/10.1175/1520-0477(2001)082<2415:FANTTS>2.3.CO;2, 2001. a
Bambach, N., Kustas, W., Alfieri, J., Prueger, J., Hipps, L., McKee, L., Castro, S. J., Volk, J., Alsina, M. M., and McElrone, A. J.: Evapotranspiration uncertainty at micrometeorological scales: the impact of the eddy covariance energy imbalance and correction methods, Irrig. Sci., 40, 445–461, https://doi.org/10.1007/s00271-022-00783-1, 2022. a, b, c, d, e
Bernhofer, C., Grünwald, T., Moderow, U., Hehn, M., Eichelmann, U., Prasse, H., Postel, U.: FLUXNET2015 DE-Tha Tharandt, FLUXNET [data set], https://doi.org/10.18140/FLX/1440152, 1996–2014. a
Bernhofer, C., Eichelmann, U., Gruenwald, T., Hehn, M., and Moderow, U.: Fluxnet Archive Product from Tharandt, 1996–2020, Ecosystem Thematic Centre [data set], https://hdl.handle.net/11676/VH-emhqZkrnp0dnhLKdnahl1 (last access: 28 November 2024), 2024. a
Bienert, A., Queck, R., Schmidt, A., and Bernhofer, C.: Voxel space analyisis of terrestrial laser scans in forests for wind field modeling, ISPRS Archives, Vol. XXXVIII, Part 5, UK, 2010. a, b
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Accurate estimates of interception are important to assess the water availability in ecosystems. We analyzed rainfall interception for a forest site from plot to stand scale. During interception, eddy-covariance measurements of evaporation were systematically underestimated accounting for 24 % of precipitation, while modelled interception evaporation accounted for 45 %. As a consequence, we developed a hybrid correction approach to fit the evaporation data to both the energy and the water balance.
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