دورية أكاديمية
Proficiency of probability distributions in unit hydrograph derivation
| العنوان: | Proficiency of probability distributions in unit hydrograph derivation |
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| المؤلفون: | Esmatullah Sangin, Pravin R. Patil, S. K. Mishra, Sumit Sen |
| المصدر: | Hydrology Research, Vol 55, Iss 4, Pp 462-483 (2024) |
| بيانات النشر: | IWA Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:River, lake, and water-supply engineering (General) LCC:Physical geography |
| مصطلحات موضوعية: | maple code, peak discharge, probability distribution function-pdf, time base, time to peak, unit hydrograph-uh, River, lake, and water-supply engineering (General), TC401-506, Physical geography, GB3-5030 |
| الوصف: | The probability distribution function (PDF)-based unit hydrographs (UHs) are gaining momentum in an application for more accurate rainfall-runoff transformation. Employing seven statistical performance indices, R2, NSE, MSE, RMSE, MAE, MAPE, and SE in generalized reduced gradient nonlinear programming (GRG-NLP) optimization, 18 known and 12 adaptable PDF-based UHs were assessed against UHs derived from 18 storms in 7 basins across the United States, Turkey, and India. To this end, 27 Maple codes were proposed for UH-application requiring only peak discharge (qp), time to peak (tp), and time base (tb) for derivation. The introduced PDFs, such as Dagum, Generalized Gamma, Log-Logistic, Gumbel Type-I, and Shifted Gompertz, replicated the observed data-derived UHs more closely than did the known PDFs, like Inverse Gaussian, two-parameter gamma distribution (2-PGD), Log-Normal, Inverse-Gamma, and Nagakami. Among the three-parameter (6 nos.), two-parameter (21 nos.), and single-parameter (3 nos.) PDFs, the Dagum, Log-Logistic, and Poisson consistently outperformed their respective counterparts in replication. HIGHLIGHTS The present study evaluates the adequacy of 30 (18 old +12 new) probability density functions (PDFs) for unit hydrograph development.; The novel PDFs are more promising than existing PDFs in the literature.; Proposed PDFs with simple formulaic structures are easily adaptable as executables using a calculator.; The incomplete-Gamma distribution has the highest ability for qp and tp.; Maple codes are provided for 27 PDFs.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1998-9563 2224-7955 |
| العلاقة: | http://hr.iwaponline.com/content/55/4/462Test; https://doaj.org/toc/1998-9563Test; https://doaj.org/toc/2224-7955Test |
| DOI: | 10.2166/nh.2024.151 |
| الوصول الحر: | https://doaj.org/article/4eacc3b480ed4e4888bba24c1c9ed139Test |
| رقم الانضمام: | edsdoj.4eacc3b480ed4e4888bba24c1c9ed139 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 19989563 22247955 |
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| DOI: | 10.2166/nh.2024.151 |