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. Author manuscript; available in PMC: 2014 Jan 22.
Published in final edited form as: Boundary Layer Meteorol. 2007 Feb;122(2):397–416. doi: 10.1007/s10546-006-9109-x

Figure 4. Directional distribution of the ratio of the standard deviation of vertical velocity (σw) to friction velocity (u*) at the study site Kaserstattalm for unstable, neutral and stable conditions.

Figure 4

Symbols indicate measurements, lines and grey areas the average and ± 30 % range, respectively, of σw / u* calculated according to Eq. 1 from the average stability parameter in each sector.