Application of Decadal Modeling Approach to Forecast Barrier Island Evolution, Dauphin Island, Alabama
Links
- Document: Report (pdf)
- Related Work: Open-File Report 2019-1139 - Development of a Modeling Framework for Predicting Decadal Barrier Island Evolution
- Data Release: USGS data release - Dauphin Island decadal forecast evolution model inputs and results
- NGMDB Index Page: National Geologic Map Database Index Page
- Download citation as: RIS | Dublin Core
Abstract
Forecasting barrier island evolution provides coastal managers and stakeholders the ability to assess the resiliency of these important coastal environments that are home to both established communities and existing natural habitats. This study uses an established coupled model framework to assess how Dauphin Island, Alabama, responds to various storm and sea-level change scenarios, along with a suite of restoration measures, over the course of a decade. The coupled model framework uses validated models for long-term alongshore sediment transport (Delft 3D), short-term storm induced impacts (XBeach), as well as dune building and recovery (empirical dune growth model). This model framework was simulated with the various storm and sea-level change scenarios on a non-restored Dauphin Island, then a subset of the storm and sea-level change scenarios were applied to a suite of seven different restoration measures to determine how they would influence the morphologic evolution over a decadal period. Topographic and bathymetric changes captured in post-simulation digital elevation models were then passed on to partners for various simulations to determine the effects on habitat evolution and water quality as it relates to oyster reef and submerged aquatic vegetation.
Suggested Citation
Mickey, R.C., Godsey, E., Dalyander, P.S., Gonzalez, V., Jenkins, R.L., III, Long, J.W., Thompson, D.M., and Plant, N.G., 2020, Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama: U.S. Geological Survey Open-File Report 2020–1001, 45 p., https://doi.org/10.3133/ofr20201001.
ISSN: 2331-1258 (online)
Study Area
Table of Contents
- Acknowledgments
- Abstract
- Introduction
- Potential Restoration Measures Tested in Forecast
- Sea Level Projections and Forecast Storm-Set Generation
- Scenario Generation Summary
- Coupled Forecast Model Framework
- Results
- Forecast Model Framework Summary
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Application of decadal modeling approach to forecast barrier island evolution, Dauphin Island, Alabama |
Series title | Open-File Report |
Series number | 2020-1001 |
DOI | 10.3133/ofr20201001 |
Year Published | 2020 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | St. Petersburg Coastal and Marine Science Center |
Description | Report: viii, 45 p.; Data Release |
Country | United States |
State | Alabama |
Other Geospatial | Dauphin Island |
Online Only (Y/N) | Y |
Additional Online Files (Y/N) | Y |
Google Analytic Metrics | Metrics page |