Abstract
The West Maui Region incorporates a thin coastal margin backed by steep mountainous terrain that has been vastly altered by agricultural and urbanized development. Coastline includes headlands and reefs with a very limited supply of sediment. Shoreline was found to be erosional chronically based on average rates. The dynamics of the area are complex with a wave climate affected by intricate bathymetry, wind, and island sheltering. Longshore currents vary locally and temporally from nearshore to offshore. Wave and current modeling indicates that large waves in the summer and winter have driven the majority of sediment transport along the coast. The littoral transport is essentially northward in summer and southward in winter. The net transport of longshore sediment is overall small. The nearshore eddy formation with wave breaking nearshore over narrow sandy bed and wide reefs may increase the complexity of sediment movement within the region.References
Buttolph, A. M., C. W. Reed, N. C. Kraus, N. Ono, M. Larson, B. Camenen, H. Hanson, T. Wamsley, and A. K. Zundel. 2006. Two-dimensional depth-averaged circulation model CMS-M2D: Version 3.0, Report 2: Sediment transport and morphology change. Coastal and Hydraulics Laboratory Technical Report ERDC/CHL TR-06-7. Vicksburg, MS: U.S. Army Engineer Research and Development Center.
Demirbilek, Z. and J. D. Rosati. 2011. Verification and Validation of the Coastal Modeling System: Report I, Executive Summary. Technical Report ERDC/CHL-TR-11-10. Vicksburg, MS: U.S. Army Engineer Research and Development Center.
Fletcher, C. H., B. M. Romine, A. S. Genz, M. M. Barbee, M. Dyer, T. R. Anderson, S. C. Lim, S. Vitousek, C. Bochicchio, and B. M. Richmond. 2012. National assessment of shoreline change: Historical shoreline change in the Hawaiian Islands. Open-File Report 2011-1051. Santa Cruz, CA: U.S. Department of the Interior, U.S. Geological Survey, Pacific Coastal and Marine Science Center. http://pubs.usgs.gov/of/2011/1051.
Lin, L., Z. Demirbilek, and H. Mase. 2011. Recent capabilities of CMS-Wave: A coastal wave model for inlets and navigation projects. Proceedings, Symposium to honor Dr. Nicholas Kraus. Journal of Coastal Research, Special Issue 59, 7-14.
Lin, L. Z. Demirbilek, H. Mase, J. Zheng, and F. Yamada. 2008. CMS-Wave: a nearshore spectral wave processes model for coastal inlets and navigation projects. Coastal Inlets Research Program, Coastal and Hydraulics Laboratory Technical Report ERDC/CHL TR-08-13. Vicksburg, MS: U.S. Army Engineer Research and Development Center.
Vitousek, S., C.H. Fletcher, M.A. Merrifield, G. Pawlak, and C.D. Storlazzi. 2007. Model scenarios of shoreline change at Kaanapali Beach, Maui, Hawaii: Seasonal and extreme events. Proceedings of Coastal Sediments 2007, ASCE, vol. 2. 1227-1240.
Zundel, A. K. 2006. Surface-water Modeling System reference manual: Version 9.2. Provo, UT: Brigham Young University Environmental Modeling Research Laboratory.