where v2 is the wind speed at the turbine hub height, H2 and v1 is
the wind speed at the observed height, H1. The exponential shear,
m is the factor that depends on surface roughnessandatmospheric stability. It is site specific and is usually in the range of
0.05–0.5 [31, 32]. The most frequently adopted value is0.14 [20].
This is widely applicable to a low surface [33], well exposed site
and it is adopted in this article.