RAW DATA: PRESET CALCULATIONS
August 24, 2001 to Present

Calculation nameEquationCondition to computeValue during failed condition
Wind Direction Delta (2-5m)abs({Avg Wind Direction @ 2m [deg]}-{Avg Wind Direction @ 5m [deg]})10
Wind Direction Delta (5-10m)abs({Avg Wind Direction @ 5m [deg]}-{Avg Wind Direction @ 10m [deg]})10
Wind Direction Delta (10-20m)abs({Avg Wind Direction @ 10m [deg]}-{Avg Wind Direction @ 20m [deg]})10
Wind Direction Delta (20-50m)abs({Avg Wind Direction @ 20m [deg]}-{Avg Wind Direction @ 50m [deg]})10
Wind Direction Delta (50-80m)abs({Avg Wind Direction @ 50m [deg]}-{Avg Wind Direction @ 80m [deg]})10
Wind Direction Delta (2-80m)abs({Avg Wind Direction @ 2m [deg]}-{Avg Wind Direction @ 80m [deg]})10

Preset calculations are performed on the fly, as requested by user.
Calculation is only performed when condition equation is true, otherwise the failed condition value is output
Plots using a Langley calculation will be plotted versus airmass (instead of time) and will also include a linear fit with slope & intercept.
Wind Direction Deltas are special cases that go beyond the equations listed above to keep the data in the 0 to 180 degree realm.

[NREL] [MIDC] [NWTC M2]