Articles | Volume 28, issue 7
https://doi.org/10.5194/hess-28-1687-2024
https://doi.org/10.5194/hess-28-1687-2024
Research article
 | 
12 Apr 2024
Research article |  | 12 Apr 2024

Flood frequency analysis using mean daily flows vs. instantaneous peak flows

Anne Bartens, Bora Shehu, and Uwe Haberlandt

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Cited articles

Acharya, A. and Ryu Jae, H.: Simple Method for Streamflow Disaggregation, J. Hydrol. Eng., 19, 509–519, https://doi.org/10.1061/(ASCE)HE.1943-5584.0000818, 2014. a
Canuti, P. and Moisello, U.: Relationship between the yearly maxima of peak and daily discharge for some basins in tuscany, Hydrolog. Sci. J., 27, 111–128, https://doi.org/10.1080/02626668209491094, 1982. a, b, c
Chen, B., Krajewski, W. F., Liu, F., Fang, W., and Xu, Z.: Estimating instantaneous peak flow from mean daily flow, Hydrol. Res., 48, 1474–1488, https://doi.org/10.2166/nh.2017.200, 2017. a, b, c, d, e, f, g, h
Dastorani, M. T., Koochi, J. S., Darani, H. S., Talebi, A., and Rahimian, M. H.: River instantaneous peak flow estimation using daily flow data and machine-learning-based models, J. Hydroinform., 15, 1089–1098, https://doi.org/10.2166/hydro.2013.245, 2013. a
Ding, J. and Haberlandt, U.: Estimation of instantaneous peak flow from maximum mean daily flow by regionalization of catchment model parameters, Hydrol. Process., 31, 612–626, https://doi.org/10.1002/hyp.11053, 2017. a, b
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Short summary
River flow data are often provided as mean daily flows (MDF), in which a lot of information is lost about the actual maximum flow or instantaneous peak flows (IPF) within a day. We investigate the error of using MDF instead of IPF and identify means to predict IPF when only MDF data are available. We find that the average ratio of daily flood peaks and volumes is a good predictor, which is easily and universally applicable and requires a minimum amount of data.