Advanced Numerical Methods for NWP Models

Abstract

The long-term goal of this research is to construct the Navy s next-generation global numerical weather prediction (NWP) model using new numerical methods specifically designed for distributed-memory computers. To take full advantage of the new computer architectures, the spherical global domain must be partitioned into local sub-domains, or elements, which can then be solved independently on the multiple processors of these computers. The numerical methods used on these sub-domains must be not only local in nature but also high-order in accuracy and highly efficient. Thus the final objective of this project is to construct a new global NWP model which is as accurate as the current spectral model Navy Operational Global Atmospheric Prediction Systems (NOGAPS) while much more efficient, thereby allowing for finer resolution forecasts.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2003
Accession Number
ADA630029

Entities

People

  • Francis X. Giraldo

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Computer Architecture
  • Computers
  • Computing System Architectures
  • Demographic Cohorts
  • Electronic Mail
  • Equations
  • Grids
  • Helmholtz Equations
  • Information Operations
  • Military Research
  • Shallow Water
  • Simulations
  • Simulators
  • Spherical Harmonics
  • Water
  • Weather Forecasting

Readers

  • Atmospheric Science/Meteorology
  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)