QUANTIFYING BEACH AND DUNE RESILIENCE USING THE COASTAL RESILIENCE INDEX
AbstractUS Army Corps of Engineers Coastal Storm Risk Management (CSRM) projects have reduced coastal vulnerability and helped communities anticipate and mitigate toward improved resilience. This study proposes the Coastal Resilience Index (CRI) to quantify storm damage reduction benefits due to beach restoration projects in the context of resilience. The CRI considers metrics of the beach and dune system and disturbance factors such as storm surge and waves, using five non-dimensional factors: Protective Elevation (PE), Volume Density (VD), Protective Width (PW), Crest Freeboard (CF) and wave run-up (WR). The CRI is the summation of these five non-dimensional factors. This study developed a geographic information systems (GIS) based tool to automatically extract morphologic features from historic profiles and profiles extracted from LiDAR data to quantify beach resilience over time.
Doran, K.S., J.W. Long, and J.R. Overbeck. 2015. A method for determining average beach slope and beach slope variability for U.S. sandy coastlines. U.S. Geological Survey Open-File Report 2015-1053, 5 p.
Hapke, C.J., O.T. Brenner, and R.E. Henderson. 2015. Quantifying the Geomorphic Resiliency of Barrier Island Beaches. In: Wang, P., J.D. Rosati, and J. Cheng. (eds) Coastal Sediments 2015: Proceedings.
Morton, R.A., J.G. Paine, and J.C. Gibeaut. 1994. Stages and durations of post-storm beach recovery, southeastern Texas coast, USA. Journal of Coastal Research: 884-908.
Owen, M.W. 1980. “Design of Seawalls Allowing for Wave Overtopping,â€ Report No. 924, Hydraulics Research Station, Wallingford, UK.
Owen, M.W. 1982. The Hydraulic Design of Seawall Profiles. Proceedings of the Coastal Protection Conference, Institution of Civil Engineers, Thomas Telford Publishing, London, UK, pp 185-192.
Robertson, Q., L. Dunkin, Z. Dong, J. Wozencraft, K. Zhang. 2018. Florida and US East Coast Beach Change Metrics Derived from LiDAR Data Utilizing ArcGIS Python Based Tools. In: Botero C., Cervantes O., Finkl C. (eds) Beach Management Tools - Concepts, Methodologies and Case Studies. Coastal Research Library, vol 24. Springer, Cham.
Rogers, C.M., A.J. Kristine, and M. Gravens. 2009. Beach-fx User's Manual: Version 1.0 Report No. ERDC/CHL SR-09-6. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory 3909 Halls Ferry Road, Vicksburg, MS 39180-6199. 262 pages.
Rosati, J.D. 2009. Barrier Island Migration over a Consolidating Substrate. LSU Doctoral Dissertations.
Rosati, J.D., K.F. Touzinsky, W.J. Lillycrop. 2015. Quantifying coastal system resilience for the US Army Corps of Engineers. Environ. Systems and Decisions, vol. 35, pp. 196-208.
Sallenger, A.H. Jr. 2000. Storm Impact Scale for Barrier Islands. Journal of Coastal Research, 16(3), 890-895.
Stockdon, H.F. 2006. Predicting the Longshore-Variable Coastal Response to Hurricanes. OSU Doctoral Dissertations.
Stockdon, H.F., K.J. Doran, D.M. Thompson, K.L. Sopkin, N.G. Plant, and A.H. Sallenger. 2012. National assessment of hurricane-induced coastal erosion hazards: Gulf of Mexico. U.S. Geological Survey Open-File Report 2012-1084, 51 p.
Stockdon, H.F., D.M. Thompson, N.G. Plant, J.W. Long. 2014. Evaluation of wave runup predictions from numerical and parametric models. Coastal Engineering, vol. 92, pp. 1-11.
Thieler, E.R., and E.S. Hammar-Klose. 1999. National Assessment of Coastal Vulnerability to Sea-Level Rise: Preliminary Results for the U.S. Atlantic Coast, U.S. Geological Survey Open-File Report 99-593.
USACE, 2013, Hurricane Sandy Coastal Projects Performance Evaluation Study. U.S. Army Corps of Engineers, Assistant Secretary of the Army for Civil Works, Report to Congress, Disaster Relief Appropriations Act.
van der Meer, J.W., and W. Janssen. 1995. Wave Run-Up and Wave Overtopping at Dikes. In Wave Forces on Inclined and Vertical Wall Structures, Kobayashi and Demirbilek, (eds). American Society of Civil Engineers, pp 1-27.
Walling K., J.K. Miller, T. Herrington, A. Eble. 2014. Comparison of Hurricane Sandy impacts in three New Jersey coastal communities. Coastal Engineering Proceedings, [S.l.], n. 34, p. management.38. ISSN 2156-1028.