American Samoa RSM : numerical modeling of waves and currents in the Utulei Beach region

Abstract

This Regional Sediment Management Technical Note (RSM-TN) describes studies of sediment related problems for the Utulei Beach region on the Island of Tutuila as part of the American Samoa Regional Sediment Management (RSM) Program. This document discusses (1) the existing shoreline conditions, (2) the oceanographic characteristics, and (3) the U. S. Army Engineer Research and Development Center (ERDC) Coastal Modeling System (CMS) numerical modeling conducted to identify sediment pathways in the region. The results of these investigations will be used to inform future decisions about potential RSM projects for the region. This study investigates sediment-related problems and opportunities in the village of Pago Pago in the Utulei Beach region on the Island of Tutuila, American Samoa. BACKGROUND: RSM refers to the effective and regionally comprehensive use of littoral, estuarine, and riverine sediment resources in an environmentally sensitive and economically efficient manner. RSM was officially implemented at the U.S. Army Corps of Engineers (USACE), Honolulu District (POH), in February 2004. While POH has investigated RSM opportunities along several regions in Hawaii, this project is the first in the U.S. Territory of American Samoa. NOTE:The contents of this technical note are not to be used for advertising, publication, or promotional purposes.Citation of trade names does not constitute an official endorsement or approval of the use of such products.