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Further experimentations with quasi-Lagrangian prediction model, effect of high vertical resolution
  • Published Date:
    1982
Filetype[PDF - 607.98 KB]


Details:
  • Personal Authors:
  • Corporate Authors:
    National Meteorological Center (U.S.)
  • Series:
    Office note (National Centers for Environmental Prediction (U.S.)) ; 260
  • Document Type:
  • Description:
    "This note describes results from numerical integrations of Quasi-Lagrangian Nested Grid Model (QNGM) using high vertical resolutions and LFM II horizontal grid structure. Details of the model are given by Mathur (1981). The primitive equations with a as the vertical coordinate are integrated using a second order quasi-Lagrangian advective scheme. The model can be integrated using any desired horizontal and vertical resolutions and over any geographical area. Results with the 10 layer version of the model on LFM II horizontal grid in the six model intercomparison test cases are described by Collins et al. (1981). One of the above test cases (tropical storm David 1979) has been integrated using 15 and 20 vertical layers respectively. Considerable improvement in the prediction of areas of heavy precipitation is achieved when the vertical resolution of the model is increased. The intensity and location of the storm are best predicted with 15 layer QNGM"-- Introduction.

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