Diffusion coefficient formulation for the spectral model

Details

• Personal Author:
  Gerrity, Joseph P.
• Corporate Authors:
  National Meteorological Center (U.S.)
• NOAA Program & Office:
  NWS (National Weather Service)
• Description:
  "As a result of the experimental run of J. Sela's spectral model model (30 wave) on the case of 17 Feb 77 (x-contour flow near Hawaii), it appears desirable to use a diffusion operation in the equations. Past experience with the LFM has indicated the desirability of using a non-Fickian form of diffusion, i.e. a form in which the diffusion coefficient is a function of wavelength. Such a formulation is readily developed in a spectral model. In this note, we work out an appropriate value for the diffusion; such that it simulates the behavior of the LFM (see Office Note 129), or attains a maximum consistent value"--Introduction.
• Content Notes:
  Joseph P. Gerrity Jr.
  
  "August 1977."
  
  "This is an unreviewed manuscript, primarily intended for informal exchange of information among NMC staff members."
  
  System requirements: Adobe Acrobat Reader.
  
  
• Keywords:
  Mathematical Models Numerical Weather Forecasting Spectral Sequences (Mathematics) Mathematical Models Numerical Weather Forecasting Spectral Sequences (Mathematics)
• Series:
  Office note (National Meteorological Center (U.S.))   158
• Document Type:
  Miscellaneous
• Place as Subject:
  United States
• Rights Information:
  Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:ca7a74567bf0df05631ccaa30c70f1e8c52f635dd7b1d2507489b7853ad1140e
• Download URL:
  https://repository.library.noaa.gov/view/noaa/12725/noaa_12725_DS1.pdf
• File Type:
  [PDF - 143.07 KB ]