Formation of Dunes on the Upper Slope by Internal Solitary Waves in the South China Sea
Abstract
The investigators propose to develop a mechanistic understanding of the processes that form the observed sand dunes and an ability to predict their occurrence and scales. The proposed approach is a synthesis of (1)analysis of existing observations of internal solitary waves and dunes, and (2) physically based models of the internal solitary waves and the associated wave-induced boundary layer, sediment transport, and seafloor evolution. The goal of the proposed project is to develop a quantitative understanding of the processes that form recently discovered sand dunes on the upper slope in the South China Sea, the site of the world’s largest observed internal solitary waves. The approach is analysis of existing observations and application of physically based models. The anticipated outcomes are a quantitative description of the formation processes and a tested capability for predicting dune wavelengths, shapes, and amplitudes, which could be used to predict presence and scales of dunes in other regions, and thus inform future MBES mapping efforts and potential ASW impacts in denied areas. The proposed work is a collaborative effort between the Woods Hole Oceanographic Institution (Trowbridge) and the Naval Postgraduate School (Reeder). Each institution is submitting proposals with identical project descriptions but separate budgets, which reflect the costs of the respective institutions.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 23, 2016
- Source ID
- N000141612486
Entities
People
- John Trowbridge
Organizations
- Office of Naval Research
- United States Navy
- Woods Hole Oceanographic Institution