Scientific Investigations Report 2006–5209

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5209

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Table 9. Results of analysis of variance (ANOVA) of wind speed at the Klamath Falls Airport, Oregon, July and August, 1990–2004.

[Medians were calculated from hourly values obtained from the National Climatic Data Center after first selecting those that fell in the upper one-half of the distribution for the month, as determined by combining all 15 years of the record. Years that share a letter are not statistically distinguishable (p<0.05) from each other using this test. Years that do not share a letter are statistically distinguishable (p<0.05) using this test. Abbreviations: m/s, meter per second]

July August
Median wind
speed (m/s)
Year Tukey
grouping
Median wind
speed (m/s)
Year Tukey
grouping
4.9 2001 A 4.5 1993 A
4.9 1993 A,B 4.5 2001 A
4.5 1994 A,B 4 1994 B
4.5 1992 B 4 1992 B,C
4.5 1991 B 4.5 1991 B,C
4.5 1990 B 3.6 1997 B,C
4 1995 C 3.6 1995 B,C,D
3.6 2000 C,D 3.6 2000 C,D,E
3.6 2004 D,E 3.6 1990 C,D,E,F
3.6 1999 E 3.6 2003 D,E,F,G
3.6 2002 E 3.6 2004 D,E,F,G
3.6 1998 E 3.6 2002 E,F,G
3.1 2003 E 3.1 1996 F,G
2.7 1997 F 3.1 1999 G
2.7 1996 G 2.2 1998 H

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