...
- Create long list of XBeach settings
- Conduct marginal sensitivity analysis on erosion volume above SSL on long list
- Submit long list including sensitivity results to expert panel
- Create short list of XBeach settings based on feedback expert panel
- Compute variation matrix of relevant ranges for settings on short list on relevant cases
- Pick the combination of settings with smallest RMS error with respect to erosion volume above SSL
Long list
The long list is constructed based on parsing the params.F90 file for settings and removing any parameters that are either case-dependent input (e.g. Hm0) or irrelevant (ships, groundwater flow, etc.).
Marginal sensitivity analysis
The marginal sensitivity analysis is performed using a default dune profile and representative settings for the Dutch coast (normative conditions). Using this model, a single parameter is varied over the applicable range of values. The default values are always included. The sensitivity is subsequently determined by looking at the variation in erosion volume depending on that parameter setting.
Expert panel
- Dano Roelvink
- Ad Reniers
- Jaap van Thiel de Vries
- Robert McCall
- Ap van Dongeren
...
Variation matrix
Resolution vs. dimensions
We can choose either to vary a large number of parameters (dimensions) using a limited resolution or vary a small number of parameters using a high resolution.
Cases
- Deltaflume ?
- Deltaflume 2006
- Boers ?
- 1953 storm surge
Result
Discussion
Several topics within this workflow are still being discussed. These discussions are briefly mentioned below.
...