Modelling of climatic change effects on runoff values using bird swarm algorithm: case study - Seine basin (France) Online publication date: Wed, 26-Oct-2022
by Noureddine Oulad Naoui; El-Amine Cherif; Abdelkader Djehiche; Mohamed Sekkoum
International Journal of Hydrology Science and Technology (IJHST), Vol. 14, No. 4, 2022
Abstract: The primary focus of this paper is the evapotranspiration (ET)-runoff modelling on an annual scale in the Seine basin. In this study, bird swarm algorithm (BSA) is used to estimate mathematical influence of temperature on runoff values. We employ the rural engineering model (GR1) for annual timestep. We calibrate GR1 model with the ET values using BSA, determining the model parameter sets that best reflect the transformation of evapotranspiration into flow. The calibration was done with Matlab software in a computer. Statistical parameters values give acceptable runoff values for all climatic conditions modelled by BSA-high values of climatic condition (BSA-HVCC = 0.56) and low values of climatic condition (BSA-LVCC = 0.82). Variations caused by climatic change are translated by the variation coefficient (V.C1 = 0.67 for high values of climatic condition and V.C2 = 0.99 for low values of climatic condition), which is the main objective of our work.
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