A Report on Experiments with the AFGWC Boundary Layer Model.

Abstract

Experiments were carried out to find means of improving the forecast performance of the Air Force Global Weather Central (AFGWC) Boundary Layer Model. The results suggest that modifications in the methods of estimating eddy diffusivity and surface specific humidity may yield a slight improvement in the forecast accuracy while requiring less computation. It is also demonstrated that doubling the time step from 30 to 60 min does not significantly degrade the forecast accuracy. Suggestions on further modifications under less restrictive operational conditions are also included. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 02, 1978
Accession Number
ADA065061

Entities

People

  • Chien-hsiung Yang
  • Karekin Agazarian

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Boundaries
  • Boundary Layer
  • Computations
  • Computers
  • Diffusivity
  • Humidity
  • Ideal Gas Law
  • Lapse Rate
  • Layers
  • Moisture
  • Quality Control
  • Statistical Analysis
  • Statistics
  • Stratified Fluids
  • Weather

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mathematics or Statistics