grid points on Hellisheiði (blue and cyan
lines), and for two grid points on Skagi (red and magenta lines).
speed, but also with air density. To simplify wind energy assessments, and to allow for the use
of Weibull statistics, it is commonly assumed that air density,
r , is not correlated in time with
wind speed, at least on a seasonal basis (Hennessey, 1977). Average wind power density
/media/vedurstofan/utgafa/skyrslur/2013/2013_001_Nawri_et_al.pdf