A split quasi-lagrangian method for use in a regional barotropic model

Details

• Personal Author:
  Jiamo, Teng
• Corporate Authors:
  National Meteorological Center (U.S.)
• NOAA Program & Office:
  NWS (National Weather Service) ; NCEP (National Centers for Environmental Prediction)
• Description:
  An economical advection scheme with linear high order accuracy is described. A splitting technique is used to solve the equations of a barotropic model. The horizontal advection process is integrated by a quasi-Lagrangian technique which uses cubic splines and deviates from past work by not employing the upstream method. The adjustment process is integrated with a forward-backward scheme. The application of this numerical method to a regional barotropic model shows that it can take full advantage of the splitting method by allowing a long time step for advection while maintaining high accuracy through the use of a cubic spline interpolation line (row) by line (row). Two approaches to the treatment of lateral boundary conditions and alternate schemes for the calculation of the adjustment process are discussed.
• Content Notes:
  Teng Jiamo.
  
  "This is an unreviewed manuscript, primarily intended for informal exchange of information among NMC staff members."
  
  "February 1988."
  
  System requirements: Adobe Acrobat Reader.
  
  Includes bibliographical references.
  
  
• Keywords:
  Mathematical Models Numerical Weather Forecasting Weather Forecasting Mathematical Models Numerical Weather Forecasting Weather Forecasting
• Series:
  Office note (National Centers for Environmental Prediction (U.S.))   334
• Document Type:
  Office Note
• Place as Subject:
  United States
• Rights Information:
  Public Domain
• Compliance:
  Library
• Main Document Checksum:
  urn:sha256:6a5f75791d83b8885bd0893051b1c481e3b4c8e44d215732ecf468a86ee6de17
• Download URL:
  https://repository.library.noaa.gov/view/noaa/11479/noaa_11479_DS1.pdf
• File Type:
  [PDF - 1.79 MB ]