Slayt 1 - RTC, Regional Training Centre - Turkey
Slayt 1 - RTC, Regional Training Centre - Turkey
Slayt 1 - RTC, Regional Training Centre - Turkey
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How Models Solve the ForecastEquations Numerical models solve the forecast equations using one of two basicmodel formulations: grid point or spectral. Grid point models solve the forecast equations at regularly spaced gridpoints. The forecast variables are specified on a set of grid points(illustrated below). Derivatives are approximated at each grid point using a variety ofarithmetic techniques called finite differences, as illustrated below. Thechoice of finite difference method affects both the computational errorand amount of computer time required to run the model.