Simple Wind Interpolation Algorithm

Wind speed and directions are interpolated accounting for the effect of topography; firstly values of wind speed and direction are converted to their components which are then interpolated to the grid model using IDWLapseAlgorithm; then a topographically driven wind model is applied to compute a terrain-modified wind speed and direction; this is achieved by computing terrain slopes, slope azimut and curvatures which are then used to determine a wind weighting factor to modify wind speed and a wind direction diverting factor to modify wind direction.