Sensitivity of storm response to antecedent topography in the XBeach model
Journal of Marine Science and Engineering
Links
- More information: Publisher Index Page (via DOI)
- Data Release: USGS data release - Idealized Antecedent Topography Sensitivity Study: Initial Baseline and Modified Profiles Modeled with XBeach
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Antecedent topography is an important aspect of coastal morphology when studying and forecasting coastal change hazards. The uncertainty in morphologic response of storm-impact models and their use in short-term hazard forecasting and decadal forecasting is important to account for when considering a coupled model framework. This study provided a methodology to investigate uncertainty of profile response within the storm impact model XBeach related to varying antecedent topographies. A parameterized island Gaussian fit (PIGF) model generated an idealized baseline profile and a suite of idealized profiles that vary specific characteristics based on collated observed LiDAR data from Dauphin Island, AL, USA. Six synthetic storm scenarios were simulated on each of the idealized profiles with XBeach in both 1- and 2-dimensional setups and analyzed to determine the morphological response and uncertainty related to the varied antecedent topographies. Profile morphologic response tends to scale with storm magnitude but among the varied profiles there is greater uncertainty in profile response to the medium range storm scenarios than to the low and high magnitude storm scenarios. XBeach can be highly sensitive to morphologic thresholds, both antecedent and time-varying, especially with regards to beach slope.
Suggested Citation
Mickey, R.C., Dalyander, P., McCall, R.T., and Passeri, D., 2020, Sensitivity of storm response to antecedent topography in the XBeach model: Journal of Marine Science and Engineering, v. 8, no. 10, 829, 23 p., https://doi.org/10.3390/jmse8100829.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Sensitivity of storm response to antecedent topography in the XBeach model |
| Series title | Journal of Marine Science and Engineering |
| DOI | 10.3390/jmse8100829 |
| Volume | 8 |
| Issue | 10 |
| Publication Date | October 21, 2020 |
| Year Published | 2020 |
| Language | English |
| Publisher | MDPI |
| Contributing office(s) | St. Petersburg Coastal and Marine Science Center |
| Description | 829, 23 p. |
| Country | United States |
| State | Alabama |
| Other Geospatial | Dauphin Island |