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Table 5 Expressive statistics for observed wind speed data at Senkata

From: Statistical scrutiny of Weibull parameters for wind energy potential appraisal in the area of northern Ethiopia

Months Data observations Wind speed range (m/s) Mean (m/s) Standard deviation (m/s) Skewness Kurtosis Power Density (W/m2) Q 95
Jan 248 0.850 1.921 0.206 0.014 −0.104 4.342 0.086
Feb 224 1.470 2.152 0.332 −0.249 0.063 6.101 0.091
Mar 248 1.470 2.348 0.440 0.597 −0.564 7.931 0.086
Apr 240 2.570 3.119 0.667 0.805 −0.187 18.582 0.088
May 248 3.200 2.446 0.822 1.435 1.789 8.960 0.086
June 240 1.960 2.251 0.668 0.130 −1.743 6.983 0.088
July 248 1.170 1.672 0.299 0.771 0.794 2.862 0.086
Aug 248 1.770 1.666 0.333 2.366 9.132 2.833 0.086
Sep 240 1.770 2.068 0.563 0.504 −1.073 5.418 0.088
Oct 248 2.720 2.522 0.712 0.947 0.424 9.826 0.086
Nov 240 1.940 2.173 0.471 0.292 −0.037 6.282 0.088
Dec 248 2.200 2.051 0.543 1.442 1.491 5.285 0.086
Feb–Apr 712 1.837 2.540 0.480 0.384 −0.229 10.032 0.051
May–July 736 2.110 2.123 0.597 0.779 0.280 5.858 0.050
Aug–Oct 736 2.087 2.085 0.536 1.272 2.828 5.555 0.050
Nov–Jan 736 1.682 2.048 0.407 0.583 0.450 5.263 0.050
Annual 5840 3.420 2.199 0.505 0.754 0.832 85.405 0.087