Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events
<p>Data-driven techniques have shown the potential to outperform process-based models in rainfall–runoff simulation. Recently, hybrid models, which combine data-driven methods with process-based approaches, have been proposed to leverage the strengths of both methodologies, aiming to enhance s...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2025-03-01
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| Series: | Hydrology and Earth System Sciences |
| Online Access: | https://hess.copernicus.org/articles/29/1277/2025/hess-29-1277-2025.pdf |
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| author | E. Acuña Espinoza R. Loritz F. Kratzert D. Klotz D. Klotz M. Gauch M. Álvarez Chaves U. Ehret |
| author_facet | E. Acuña Espinoza R. Loritz F. Kratzert D. Klotz D. Klotz M. Gauch M. Álvarez Chaves U. Ehret |
| author_sort | E. Acuña Espinoza |
| collection | DOAJ |
| description | <p>Data-driven techniques have shown the potential to outperform process-based models in rainfall–runoff simulation. Recently, hybrid models, which combine data-driven methods with process-based approaches, have been proposed to leverage the strengths of both methodologies, aiming to enhance simulation accuracy while maintaining a certain interpretability. Expanding the set of test cases to evaluate hybrid models under different conditions, we test their generalization capabilities for extreme hydrological events, comparing their performance against long short-term memory (LSTM) networks and process-based models. Our results indicate that hybrid models show performance similar to that of the LSTM network for most cases. However, hybrid models reported slightly lower errors in the most extreme cases and were able to produce higher peak discharges.</p> |
| format | Article |
| id | doaj-art-098b9a0b11ee4635bec033f80d007324 |
| institution | OA Journals |
| issn | 1027-5606 1607-7938 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Hydrology and Earth System Sciences |
| spelling | doaj-art-098b9a0b11ee4635bec033f80d0073242025-08-20T01:58:03ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382025-03-01291277129410.5194/hess-29-1277-2025Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme eventsE. Acuña Espinoza0R. Loritz1F. Kratzert2D. Klotz3D. Klotz4M. Gauch5M. Álvarez Chaves6U. Ehret7Institute of Water and Environment, Karlsruhe Institute of Technology (KIT), Karlsruhe, GermanyInstitute of Water and Environment, Karlsruhe Institute of Technology (KIT), Karlsruhe, GermanyGoogle Research, Vienna, AustriaGoogle Research, Vienna, AustriaHelmholtz Centre for Environmental Research (UFZ), Leipzig, GermanyGoogle Research, Zurich, SwitzerlandStuttgart Center for Simulation Science, Statistical Model-Data Integration, University of Stuttgart, Stuttgart, GermanyInstitute of Water and Environment, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany<p>Data-driven techniques have shown the potential to outperform process-based models in rainfall–runoff simulation. Recently, hybrid models, which combine data-driven methods with process-based approaches, have been proposed to leverage the strengths of both methodologies, aiming to enhance simulation accuracy while maintaining a certain interpretability. Expanding the set of test cases to evaluate hybrid models under different conditions, we test their generalization capabilities for extreme hydrological events, comparing their performance against long short-term memory (LSTM) networks and process-based models. Our results indicate that hybrid models show performance similar to that of the LSTM network for most cases. However, hybrid models reported slightly lower errors in the most extreme cases and were able to produce higher peak discharges.</p>https://hess.copernicus.org/articles/29/1277/2025/hess-29-1277-2025.pdf |
| spellingShingle | E. Acuña Espinoza R. Loritz F. Kratzert D. Klotz D. Klotz M. Gauch M. Álvarez Chaves U. Ehret Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events Hydrology and Earth System Sciences |
| title | Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| title_full | Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| title_fullStr | Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| title_full_unstemmed | Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| title_short | Analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| title_sort | analyzing the generalization capabilities of a hybrid hydrological model for extrapolation to extreme events |
| url | https://hess.copernicus.org/articles/29/1277/2025/hess-29-1277-2025.pdf |
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