Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset
The present work deals with the reconstruction of the flood wave that hit Mandra town (Athens, Greece) on 15 November 2017, using the framework of forensic hydrology. The flash flood event was caused by a huge storm event with a high level of spatial and temporal variability, which was part of the M...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Hydrology |
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| Online Access: | https://www.mdpi.com/2306-5338/9/11/194 |
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| author | Vasilis Bellos Ioannis Kourtis Eirini Raptaki Spyros Handrinos John Kalogiros Ioannis A. Sibetheros Vassilios A. Tsihrintzis |
| author_facet | Vasilis Bellos Ioannis Kourtis Eirini Raptaki Spyros Handrinos John Kalogiros Ioannis A. Sibetheros Vassilios A. Tsihrintzis |
| author_sort | Vasilis Bellos |
| collection | DOAJ |
| description | The present work deals with the reconstruction of the flood wave that hit Mandra town (Athens, Greece) on 15 November 2017, using the framework of forensic hydrology. The flash flood event was caused by a huge storm event with a high level of spatial and temporal variability, which was part of the Medicane Numa-Zenon. The reconstruction included: (a) the post-event collection of 44 maximum water depth traces in the town; and (b) the hydrodynamic simulation employing the HEC-RAS and MIKE FLOOD software. The derived open dataset (which also includes additional data required for hydrodynamic modeling) is shared with the community for possible use as a benchmark case for flood model developers. With regards to the modeling issues, we investigate the calibration strategies in computationally demanding cases, and test whether the calibrated parameters can be blindly transferred to another simulator (informed modeling). Regarding the calibration, it seems that the coupling of an initial screening phase with a simple grid-search algorithm is efficient. On the other hand, the informed modeling concept does not work for our study area: every numerical model has its own dynamics while the parameters are of grey-box nature. As a result, the modeler should always be skeptical about their global use. |
| first_indexed | 2024-03-09T19:02:56Z |
| format | Article |
| id | doaj.art-c8519abee11d47a1bd929c0115a63961 |
| institution | Directory Open Access Journal |
| issn | 2306-5338 |
| language | English |
| last_indexed | 2024-03-09T19:02:56Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Hydrology |
| spelling | doaj.art-c8519abee11d47a1bd929c0115a639612023-11-24T04:53:39ZengMDPI AGHydrology2306-53382022-10-0191119410.3390/hydrology9110194Identifying Modelling Issues through the Use of an Open Real-World Flood DatasetVasilis Bellos0Ioannis Kourtis1Eirini Raptaki2Spyros Handrinos3John Kalogiros4Ioannis A. Sibetheros5Vassilios A. Tsihrintzis6Laboratory of Ecological Engineering and Technology, Department of Environmental Engineering, Democritus University of Thrace, 12 Vas. Sofias St., 67100 Xanthi, GreeceCentre for the Assessment of Natural Hazards and Proactive Planning, Laboratory of Reclamation Works and Water Resources Management, School of Rural, Surveying and Geoinformatics Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografou, 15780 Athens, GreeceCentre for the Assessment of Natural Hazards and Proactive Planning, Laboratory of Reclamation Works and Water Resources Management, School of Rural, Surveying and Geoinformatics Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografou, 15780 Athens, GreeceMSc Civil Engineering Program, Department of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, 2628 Delft, The NetherlandsInstitute for Environmental Research and Sustainable Development, National Observatory of Athens, I. Metaxas & Vassilis Pavlou St., Old Penteli, 15236 Athens, GreeceDepartment of Civil Engineering, School of Engineering, University of West Attica, 250 Petrou Ralli & Thivon St., Egaleo, 12244 Athens, GreeceCentre for the Assessment of Natural Hazards and Proactive Planning, Laboratory of Reclamation Works and Water Resources Management, School of Rural, Surveying and Geoinformatics Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografou, 15780 Athens, GreeceThe present work deals with the reconstruction of the flood wave that hit Mandra town (Athens, Greece) on 15 November 2017, using the framework of forensic hydrology. The flash flood event was caused by a huge storm event with a high level of spatial and temporal variability, which was part of the Medicane Numa-Zenon. The reconstruction included: (a) the post-event collection of 44 maximum water depth traces in the town; and (b) the hydrodynamic simulation employing the HEC-RAS and MIKE FLOOD software. The derived open dataset (which also includes additional data required for hydrodynamic modeling) is shared with the community for possible use as a benchmark case for flood model developers. With regards to the modeling issues, we investigate the calibration strategies in computationally demanding cases, and test whether the calibrated parameters can be blindly transferred to another simulator (informed modeling). Regarding the calibration, it seems that the coupling of an initial screening phase with a simple grid-search algorithm is efficient. On the other hand, the informed modeling concept does not work for our study area: every numerical model has its own dynamics while the parameters are of grey-box nature. As a result, the modeler should always be skeptical about their global use.https://www.mdpi.com/2306-5338/9/11/194forensic hydrologyflood modelingopen datasetHEC-RASMIKE FLOOD |
| spellingShingle | Vasilis Bellos Ioannis Kourtis Eirini Raptaki Spyros Handrinos John Kalogiros Ioannis A. Sibetheros Vassilios A. Tsihrintzis Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset Hydrology forensic hydrology flood modeling open dataset HEC-RAS MIKE FLOOD |
| title | Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset |
| title_full | Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset |
| title_fullStr | Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset |
| title_full_unstemmed | Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset |
| title_short | Identifying Modelling Issues through the Use of an Open Real-World Flood Dataset |
| title_sort | identifying modelling issues through the use of an open real world flood dataset |
| topic | forensic hydrology flood modeling open dataset HEC-RAS MIKE FLOOD |
| url | https://www.mdpi.com/2306-5338/9/11/194 |
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