PREDICTING THE EVOLUTION OF COASTAL LOUISIANA'S BARRIER ISLANDS

  • Michael Poff
  • Vadim Alymov

Abstract

The Louisiana barrier islands are one of the outcomes of the Mississippi River outlet changing over the past several thousand years. It is the natural shifts in the river channel alignment interacting with the combination of anthropogenic impacts, sediment transport, and significant storm events that drive barrier island formation and subsequent erosion and migration. Predicting the evolution of Louisiana's barrier islands is a critical component of Louisiana's Coastal Protection and Restoration Authority (CPRA) program for restoring and sustaining their barrier islands. Both empirical and numerical modeling approaches, as well as hybrid modeling approaches, have been utilized for predicting morphologic changes over time. These predictions have been employed for the development of single-island restoration projects, and for the long-term basin-scale modeling completed for the 2017 Coastal Master Plan (CPRA, 2017) for which Coastal Engineering Consultants served on the barrier island modeling team.

References

Booij, Holthuijsen, and Ris (1996): The SWAN wave model for shallow water, Proceedings of the 25th International Conference on Coastal Engineering.

Coastal Engineering Research Center (1984): Shore Protection Manual. U.S. Army Corps of Engineers. Coastal Protection and Restoration Authority of Louisiana (2017): Louisiana's Comprehensive Master Plan for a Sustainable Coast.

Deltares (2011): Delft3D-FLOW Simulation of Multi-Dimensional Hydrodynamic Flows and Transport Phenomena, Including Sediments, User Manual.

Larson and Kraus (1989): SBEACH: Numerical Model for Simulating Storm-Induced Beach Change, Report 1.

Published
2018-12-30
How to Cite
Poff, M., & Alymov, V. (2018). PREDICTING THE EVOLUTION OF COASTAL LOUISIANA’S BARRIER ISLANDS. Coastal Engineering Proceedings, 1(36), sediment.15. https://doi.org/10.9753/icce.v36.sediment.15