A Regional Modeling Study of the South China Sea with High Resolution Hydrostatic and Nonhydrostatic Nested Models of the Luzon Strait

Abstract

LONG-TERM GOALS: The goal of this work is to better understand the generation, propagation, modal transformations and interaction of multiple Nonlinear Internal Waves (NLIWs) on the continental slope and shelf using nonhydrostatic models embedded in nested hydrostatic models with realistic forcing and bathymetry. Accuracy will be assessed by hindcasting and forecasting the temperature, salinity and velocity fields for the SCS (South China Sea) north and east of Dongsha island and comparing the results with data from the experiments of this DRI and from the ASIAEX experiment. This work will provide the understanding needed to build an operational system to predict the timing, location and intensity of NLIWs as required for tactical planning. OBJECTIVES: * To identify the mechanisms responsible for the generation, propagation, fission, interaction and modal transformations of NLIWs on the slope and the plateau north and east of Dongsha Island in the SCS. * To hindcast these NLIWs using high resolution nonhydrostatic and hydrostatic numerical models with realistic ocean topography and surface forcing and using open boundary conditions provided by the large scale ocean model. * To determine the space and time scales involved in these processes that influence NLIWs on the continental shelf and slope of the SCS and their relationship to local and remote forcing.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2009
Accession Number
ADA526910

Entities

People

  • Patrick C. Gallacher

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • Bathymetry
  • Boundaries
  • Continental Shelves
  • Continental Slopes
  • Demographic Cohorts
  • Grids
  • High Resolution
  • Human Factors Engineering
  • Internal Waves
  • Landforms
  • Military Research
  • Navy
  • Oceans
  • Simulations
  • South China Sea
  • Stratified Fluids

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography

Technology Areas

  • Space