A Study of Lateral Boundary Conditions for the NRL's Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS)

Abstract

LONG-TERM GOALS. Our long-term goal is to improve lateral boundary conditions in local area models. OBJECTIVES. The treatment of lateral boundaries in regional models has been a perennial problem since the early days of numerical weather prediction. In a limited-area model the lateral edges are not physical boundaries of the flow but constitute artificial constraints imposed by computational considerations. Hence they do not have a physical counterpart. We must impose conditions at these artificial boundaries in order to solve the problem in an efficient and accurate manner. We have developed high order non-reflecting boundary conditions for the dispersive Klein-Gordon equation and the linearized shallow water equations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2003
Accession Number
ADA629624

Entities

People

  • Beny Neta
  • Dan Givoli

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Applied Mathematics
  • Atmospheres
  • Boundaries
  • Boundary Value Problems
  • Cartesian Coordinates
  • Coordinate Systems
  • Dispersion Relations
  • Equations
  • Grids
  • Information Operations
  • Layers
  • Mathematics
  • Shallow Water
  • Standards
  • Water
  • Weather Forecasting

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Systems Analysis and Design