Many of the weather elements can be derived from data provided by the model through the use of sophisticated algorithms. Table 1 lists the sensible weather elements that are produced based on models for the public, fire weather, and marine service areas. List of the Derived Sensible Weather Elements for Users. How Weather Elements are Derived Sensible weather elements are derived from the available model data through different algorithms. Typically the models provide the temperature, relative humidity, wind, and geopotential height fields at 50-millibar intervals.
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.