An Efficient Barotropic Vorticity Equation Model on a Sphere.

Abstract

An efficient accurate algorithm for a barotropic model for a computational domain that encompasses the entire surface of the earth has been developed. While this simple model does not contain enough realistic features of the atmosphere to predict the synoptic-scale weather with accuracy, it does, however, simulate the planetary waves of the atmosphere with sufficient realism to enable us to conduct numerical experiments designed to study specific problems in numerical weather prediction. In this interim report, we shall give a brief discussion of the motivations for developing such a global barotropic model, describe in some detail the numerics for the solution of the model equations, and present some sample numerical time-integration results. Several remarks concerning the numerics of this algorithm are also included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 13, 1978
Accession Number
ADA065117

Entities

People

  • Samuel Y. K. Yee

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Propagation
  • Air Force
  • Algorithms
  • Atmospheres
  • Computations
  • Equations
  • Flow
  • Grids
  • Kinetic Energy
  • Latitude
  • Longitude
  • North America
  • Numerical Integration
  • Poisson Equation
  • Two Dimensional
  • Waves
  • Weather Forecasting

Fields of Study

  • Mathematics

Readers

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