Spatial and temporal Hurst exponent variability of rainfall series based on the climatological distribution in a semiarid region in Mexico

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Alvaro Alberto López-Lambraño
Carlos Fuentes
Alvaro Alberto López-Ramos
Jorge Mata Ramírez
Mariangela López-Lambraño

Abstract

A fractal analysis from rainfall events registered in a semiarid region was carried out. The analysis was executed for Baja California, Mexico, a region that presents a high climatological variability. Rainfall data from 92 climate stations distributed along the region of study with at least 30 years of records were used. By studying the rainfall series patterns, the Hurst exponent values were obtained (both spatial and temporal) as well as their relation with the variables for annual average temperature, annual average rainfall, altitude and climatological distribution. The rescaled range method, box counting method, and multifractal detrended fluctuation analysis were successfully applied, having as a result the average value of the Hurst exponent for different time scales. Data showed that the daily rainfall series tend to present a persistent pattern; besides, the Hurst exponent values (Hu) were related to the type of climate, altitude, rainfall regime, and temperature of the studied area. The analysis of the Hurst exponent for different time scales showed that, at a smaller time scale, the Hurst value tends to increase; thus, the series present a stronger persistent behavior. Moreover, it can be confirmed that the fractal theory methodology allows analyzing the behaivor of a climate variable, in this case rainfall.

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Author Biographies

Alvaro Alberto López-Lambraño, Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California. Km. 103 carretera Tijuana – Ensenada, C.P. 22860, Ensenada, Baja California, México. HIDRUS S.A. de C.V. Privada San Simón 51 C.P. 76180, Querétaro, México.

Laboratorio de Hidráulica de la Facultad de Ingeniería, Arquitectura y Diseño de la Universidad Autónoma de Baja California. Profesor - Investigador.

HIDRUS SA de CV. Consultor

 

Carlos Fuentes, Instituto Mexicano de Tecnología del Agua. Paseo Cuauhnáhuac 8532, Progreso, C.P. 62550, Jiutepec, Morelos, México.

Coordinación de Riego y Drenaje del Instituto Mexicano de Tecnología del Agua. Investigador.

Alvaro Alberto López-Ramos, Escuela de Ingenierías y Arquitectura, Facultad de Ingeniería Civil, Universidad Pontificia Bolivariana-Seccional Montería, Cra 6 No 97A-99, C.P. 230002, Montería, Córdoba, Colombia.

Facultad de Ingeniería Civil de la Universidad Pontificia Bolivariana-Seccional Montería. Profesor Investigador.

Jorge Mata Ramírez, Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California. Km. 103 carretera Tijuana – Ensenada, C.P. 22860, Ensenada, Baja California, México.

Laboratorio de Hidráulica de la Facultad de Ingeniería, Arquitectura y Diseño de la Universidad Autónoma de Baja California. Profesor - Investigador.

Mariangela López-Lambraño, Universidad del Norte Km.5 vía Puerto Colombia, C.P. 080001, Barranquilla, Colombia.

Laboratorio de Hidráulica de la Facultad de Ingeniería, Arquitectura y Diseño de la Universidad Autónoma de Baja California. Profesor - Investigador.

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