Some models provide additional information such as lifted index and other convective parameters. Interpolation of model data is performed to derive the high-resolution model data at each GFESuite grid point. The algorithm uses a linear interpolation based on the nearest four model grid points for each GFESuite grid point. This technique increases the effective resolution of the model. Examples of some of the algorithms are explained in the next section.
Some models provide a surface temperature field.
Unfortunately, this field is not directly usable for IFP due to its low spatial resolution. A temperature and geopotential height sounding is calculated from the model data. The model terrain and actual terrain are determined from the model data and high-resolution topography data. The geopotential height of the actual surface is calculated and then used to determine the appropriate model layers to use for interpolating the model temperature. Not surprising, terrain influences the result as shown in Figures 1 and 2.