High-Resolution, Nonhydrostatic Simulations of Internal Wave Generation in the Luzon Strait using SUNTANS
Abstract
The long-term goal of these numerical simulations will be to obtain a detailed understanding of the fundamental physics that govern internal wave generation over complex topography, with a specific focus on flows through the network of straits and sills between the islands of Taiwan and Luzon. The following objectives are planned to support this study: (1) Influence of bathymetry and grid resolution -- Assess what bathymetric and accompanying grid resolution are needed to obtain meaningful results; (2) Internal wave energetics -- Quantify how internal wave energy is partitioned; (3) Three-dimensional process studies -- Determine the importance of rotation and the ratio of strait width to strait depth; and (4) Assessment of nonhydrostatic effects -- Understand the role of nonhydrostatic pressure in the vicinity of steep and complex bathymetry. The work for the IWISE DRI will be divided into several areas that are divided between Drs. Jachec and Fringer. Dr. Jachec is responsible for assessing the effects of grid resolution and bathymetry, computing energetics, performing three-dimensional simulations of candidate field sites, and performing three-dimensional process studies. Drs. Jachec and Fringer are cooperating in assessing the role of nonhydrostatic effects on internal wave generation. As pointed out by Jachec et al. (2007) when applying SUNTANS to simulate internal tides in Monterey Bay, the success of a high-resolution simulation of internal waves depends to a great extent on the accuracy of the available bathymetry and the accompanying grid resolution. The numerical simulation results will yield fundamental physics that are important to internal wave generation in straits and over sills. Furthermore, field-scale modeling will be used to help guide upcoming field efforts (e.g., positioning of assets) in the Luzon Strait.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2009
- Accession Number
- ADA527201
Entities
People
- Steven M. Jachec
Organizations
- Florida Institute of Technology