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Hydrology
Volume 8
Issue 4
10.3390/hydrology8040150
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Article

Estimation of Peak Discharges under Different Rainfall Depth–Duration–Frequency Formulations

by
Andrea Gioia
1,
Beatrice Lioi
1,
Vincenzo Totaro
1,*,
Matteo Gianluca Molfetta
1,
Ciro Apollonio
2,
Tiziana Bisantino
3 and
Vito Iacobellis
1
1
Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica, Politecnico di Bari, 70125 Bari, Italy
2
DAFNE Department, Tuscia University, 01100 Viterbo, Italy
3
Puglia Region Civil Protection Section, 70026 Modugno, BA, Italy
*
Author to whom correspondence should be addressed.
Hydrology 2021, 8(4), 150; https://doi.org/10.3390/hydrology8040150
Submission received: 10 August 2021 / Revised: 16 September 2021 / Accepted: 28 September 2021 / Published: 8 October 2021
(This article belongs to the Special Issue Advances in Modelling of Rainfall Fields)
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Abstract

One of the main signatures of short duration storms is given by Depth–Duration–Frequency (DDF) curves. In order to provide reliable estimates for small river basins or urban catchments, generally characterized by short concentration times, in this study the performances of different DDF curves proposed in literature are described and compared, in order to provide insights on the selection of the best approach in design practice, with particular reference to short durations. With this aim, 28 monitoring stations with time series of annual maximum rainfall depth characterized by sample size greater than 20 were selected in the Northern part of the Puglia region (South-Eastern Italy). In order to test the effect of the investigated DDF curves in reproducing the design peak discharge corresponding to an observed expected rainfall event, the Soil Conservation (SCS) curve number (CN) approach is exploited, generating peak discharges according to different selected combinations of the main parameters that control the critical rainfall duration. Results confirm the good reliability of the DDF curves with three parameters to adapt on short events both in terms of rainfall depth and in terms of peak discharge and, in particular, for durations up to 30 min, the three-parameter DDF curves always perform better than the two-parameter DDF.
Keywords: rainfall time series; DDF curves; SCS-CN method; peak discharge rainfall time series; DDF curves; SCS-CN method; peak discharge

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MDPI and ACS Style

Gioia, A.; Lioi, B.; Totaro, V.; Molfetta, M.G.; Apollonio, C.; Bisantino, T.; Iacobellis, V. Estimation of Peak Discharges under Different Rainfall Depth–Duration–Frequency Formulations. Hydrology 2021, 8, 150. https://doi.org/10.3390/hydrology8040150

AMA Style

Gioia A, Lioi B, Totaro V, Molfetta MG, Apollonio C, Bisantino T, Iacobellis V. Estimation of Peak Discharges under Different Rainfall Depth–Duration–Frequency Formulations. Hydrology. 2021; 8(4):150. https://doi.org/10.3390/hydrology8040150

Chicago/Turabian Style

Gioia, Andrea, Beatrice Lioi, Vincenzo Totaro, Matteo Gianluca Molfetta, Ciro Apollonio, Tiziana Bisantino, and Vito Iacobellis. 2021. "Estimation of Peak Discharges under Different Rainfall Depth–Duration–Frequency Formulations" Hydrology 8, no. 4: 150. https://doi.org/10.3390/hydrology8040150

APA Style

Gioia, A., Lioi, B., Totaro, V., Molfetta, M. G., Apollonio, C., Bisantino, T., & Iacobellis, V. (2021). Estimation of Peak Discharges under Different Rainfall Depth–Duration–Frequency Formulations. Hydrology, 8(4), 150. https://doi.org/10.3390/hydrology8040150

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