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Article

Isohyetal Maps of Daily Maximum Rainfall for Different Return Periods for the Colombian Caribbean Region

1
Senior Project Engineer, The Chazen Companies, Poughkeepsie, NY 12601, USA
2
Facultad de Ingeniería, Departamento de Ingeniería Civil y Ambiental, Universidad Tecnológica de Bolívar, Cartagena de Indias 131001, Colombia
3
Department of Science, Borough of Manhattan Community College, 199 Chambers St., New York, NY 10007, USA
4
Departamento de Gestión Industrial, Agroindustrial y Operaciones, Universidad de la Costa, Barranquilla 080001, Colombia
*
Author to whom correspondence should be addressed.
Water 2019, 11(2), 358; https://doi.org/10.3390/w11020358
Received: 9 January 2019 / Revised: 14 February 2019 / Accepted: 15 February 2019 / Published: 20 February 2019
(This article belongs to the Section Hydrology)
In Colombia, daily maximum multiannual series are one of the main inputs for design streamflow calculation, which requires performing a rainfall frequency analysis that involves several prior steps: (a) requesting the datasets, (b) waiting for the information, (c) reviewing the datasets received for missing or data different from the requested variable, and (d) requesting the information once again if it is not correct. To tackle these setbacks, 318 rain gauges located in the Colombian Caribbean region were used to first evaluate whether or not the Gumbel distribution was indeed the most suitable by performing frequency analyses using three different distributions (Gumbel, Generalized Extreme Value (GEV), and Log-Pearson 3 (LP3)); secondly, to generate daily maximum isohyetal maps for return periods of 2, 5, 10, 20, 25, 50, and 100 years; and, lastly, to evaluate which interpolation method (IDW, spline, and ordinary kriging) works best in areas with a varying density of data points. GEV was most suitable in 47.2% of the rain gauges, while Gumbel, in spite of being widely used in Colombia, was only suitable in 34.3% of the cases. Regarding the interpolation method, better isohyetals were obtained with the IDW method. In general, the areal maximum daily rainfall estimated showed good agreement when compared to the true values. View Full-Text
Keywords: isohyetal map; interpolation method; IDEAM; design rainfall; stationary frequency analysis; stormwater management isohyetal map; interpolation method; IDEAM; design rainfall; stationary frequency analysis; stormwater management
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MDPI and ACS Style

González-Álvarez, Á.; Viloria-Marimón, O.M.; Coronado-Hernández, Ó.E.; Vélez-Pereira, A.M.; Tesfagiorgis, K.; Coronado-Hernández, J.R. Isohyetal Maps of Daily Maximum Rainfall for Different Return Periods for the Colombian Caribbean Region. Water 2019, 11, 358. https://doi.org/10.3390/w11020358

AMA Style

González-Álvarez Á, Viloria-Marimón OM, Coronado-Hernández ÓE, Vélez-Pereira AM, Tesfagiorgis K, Coronado-Hernández JR. Isohyetal Maps of Daily Maximum Rainfall for Different Return Periods for the Colombian Caribbean Region. Water. 2019; 11(2):358. https://doi.org/10.3390/w11020358

Chicago/Turabian Style

González-Álvarez, Álvaro, Orlando M. Viloria-Marimón, Óscar E. Coronado-Hernández, Andrés M. Vélez-Pereira, Kibrewossen Tesfagiorgis, and Jairo R. Coronado-Hernández 2019. "Isohyetal Maps of Daily Maximum Rainfall for Different Return Periods for the Colombian Caribbean Region" Water 11, no. 2: 358. https://doi.org/10.3390/w11020358

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