Speed SD Shear Exponent Calculated Column

This calculated data column will contain the power law exponent calculated from the wind speed standard deviation values in every time step of the dataset. The dataset must contain standard deviation of wind speed at two or more different measurement heights.

You can choose which wind speed standard deviation data columns to use in the calculations:

Note that default flag filtering applies to these calculations. The number of wind speed sensors involved in the calculation will vary from one time step to the next depending on which sensors report valid measurements in each time step. In a time step where Windographer cannot calculate the shear parameter because of insufficient data, the wind shear calculated column will have a gap.

Like it does for all calculated data columns, Windographer will re-calculate the wind shear calculated column whenever you change any of the source data columns, for example by flagging or deleting a segment, applying a scale factor, or appending more data.