Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10216/139761
Autor(es): | Isabel Iglesias José Luís Pinho Paulo Avilez Valente William Melo Ana Bio Ana Gomes José Vieira Luísa Bastos Fernando Veloso Gomes |
Título: | Improving Estuarine Hydrodynamic Forecasts Through Numerical Model Ensembles |
Data de publicação: | 2022 |
Resumo: | Numerical models are essential tools for the study and analysis of the hydrodynamics of estuarine systems. However, the model results contain uncertainties, which need to be minimized to increase the accuracy of predictions. In this work, the ensemble technique is proposed as a solution to improve hydrodynamic forecasts for estuarine regions. Two numerical models, openTELEMAC-MASCARET and Delft3D, were considered for the application of this technique to two Portuguese estuaries. Superensembles for three scenarios (summer, winter, and extreme event) were built to assess the effectiveness of the technique in improving water level prediction. Various weighing techniques were tested in the construction of the ensembles. Weighing techniques that consider the previous performance of each model alone outperformed other techniques. This was observed for all scenarios considered, at all sampling points and in both studied estuaries. The effect of the ensemble size was also analyzed. It was found that the size of the set is directly related to the prediction accuracy, with the best results provided by the superensembles with the highest number of elements. It is concluded that the combined use of several hydrodynamic models reduces the uncertainty of the results and increases the reliability and consistency of predictions for estuarine regions. |
URI: | https://hdl.handle.net/10216/139761 |
Tipo de Documento: | Artigo em Revista Científica Internacional |
Condições de Acesso: | openAccess |
Aparece nas coleções: | FCUP - Artigo em Revista Científica Internacional FEUP - Artigo em Revista Científica Internacional ICBAS - Artigo em Revista Científica Internacional |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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531760.pdf | Artigo | 6.27 MB | Adobe PDF | Ver/Abrir |
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