Monitorización de las sequías hidrológicas en Andalucía mediante un modelo hidrológico

• Romero-Jiménez, Emilio ^[1] ; García-Valdecasas Ojeda, Matilde ^[2] ; Yeste, Patricio ^[2] ; Rosa-Cánovas, Juan José ^[2] ; Castro-Díez, Yolanda ^[2] ; Esteban-Parra, María Jesús ^[2] ; Gámiz-Fortis, Sonia R. ^[2]
  1. [1] Departamento de Física Aplicada, Universidad de Granada, Granada.
  2. [2] Departamento de Física Aplicada, Universidad de Granada, Granada; Instituto Interuniversitario De Investigación Del Sistema Tierra En Andalucía (IISTA-CEAMA), Granada.
• Localización: 10.ª Asamblea Hispano-Portuguesa de Geodesia y Geofísica: artículos, 2023, ISBN 978-84-416-7540-7, págs. 962-968
• Idioma: español
• Títulos paralelos:
  • Hydrological drought monitoring in Andalusia using a hydrological model
• Enlaces
  • Texto Completo Libro
• Resumen

  • Climate change is the cause of different events affecting several socioeconomic activities around the world. One of the more relevant effects in the Iberian Peninsula is drought, whose effects are already noticeable. In this frame, different drought types can be studied, depending on the parameters used to define them. Hydrological drought, caused by streamflow reductions, will be studied in this work, centered on Andalusia, a region presenting differences in the relationship between meteorological and hydrological droughts depending mainly on orography and catchment area. In order to study droughts, there are tools like drought indices, which quantify duration, severity, and magnitude of such extreme events. The index used in this study is the Standardized Streamflow Index (SSI). Since it is a normalized index, spatial comparisons can be reliably made between different points of the basin. Two sources of data, observational data and hydrological model data, were used to calculate the SSI. The Variable Infiltration Capacity (VIC) hydrological model was used to obtain the latter data. This way, the results can be compared to assess if the calibrated VIC simulations are able to represent drought conditions in the different areas of the Guadalquivir Basin. The evaluation of the hydrological model’s performance will allow the determination of the feasibility of future hydrological simulations, using climate data from regional models, in future periods. These future simulations are needed for the study of possible changes between present and future drought conditions.

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