IWAVE: an ocean simulation model for internal waves

Effective usage of scarce resources (ships, instruments, etc.) requires a coherent and rational approach to develop any underwater system. One of the important tasks towards achieving this is to simulate the performance of the proposed system under all oceanic conditions before it is being developed...

Full description

Saved in:
Bibliographic Details
Published in:Current science (Bangalore) 2005-12, Vol.89 (11), p.1927-1932
Main Authors: Kumar, G. V. Krishna, Balasubramanian, P.
Format: Article
Language:English
Subjects:
Acoustic modes
Buoyancy
Eigenvalues
Eigenvectors
Internal waves
Marine
Modeling
Oceans
RESEARCH COMMUNICATIONS
Salinity
Simulations
Waves
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Effective usage of scarce resources (ships, instruments, etc.) requires a coherent and rational approach to develop any underwater system. One of the important tasks towards achieving this is to simulate the performance of the proposed system under all oceanic conditions before it is being developed. Internal waves (IWs) play a major role in ocean thermodynamics, underwater acoustic transmission, etc. In order to understand the behaviour of IWs and their role in various physical processes in the ocean, we have developed an IW model, IWAVE based on the Garrett–Munk modal spectrum. In this communication we present detailed implementation procedures of the model and also a technique to solve the eigenvalue problem accurately. An algorithm based on central finite difference and QR techniques was implemented to find the eigen-wave-numbers and modes (dispersion relations). IWAVE simulates temperature and salinity (estimated sound speed also) structure due to IWs in the ocean. Experiments were conducted to validate the model off the west coast of India. Variances of the measured and simulated sound speed are in good agreement.
ISSN:0011-3891