Seasonality, Interannual Variability, and Linear Tendency of Wind Speeds in the Northeast Brazil from 1986 to 2011

Table 2

Years with El Niño and La Niña events, which are responsible for changes in wind intensity over the studied region. Years with El Niño and La Niña activities were established based on the data from the Center for Weather Forecasting and Climate Studies-CPTEC/INPE (http://enos.cptec.inpe.br/).

Meteorological phenomenon	Year	Observed mean (m/s)					Anomaly (m/s)
		G1	G2	G3	G4	G5	G1	G2	G3	G4	G5
El Niño	1987	3.38	4.02	1.51	2.31	3.27	0.01	−0.09	0.16	0.17	0.44
La Niña	1988	3.22	4.10	1.54	2.27	3.06	−0.15	−0.01	0.19	0.13	0.23
El Niño	1993	3.64	4.44	1.37	2.19	3.00	0.27	0.38	0.02	0.05	0.17
El Niño	1998	3.67	4.51	1.31	2.16	3.02	0.30	0.40	−0.04	0.02	0.19
La Niña	2000	3.27	4.06	1.20	2.02	2.71	−0.10	−0.05	−0.15	−0.12	−0.12
El Niño	2005	3.62	4.15	1.37	2.22	2.86	0.25	0.04	0.02	0.08	0.03
La Niña	2008	3.22	3.91	1.23	2.08	2.58	−0.15	−0.20	−0.12	−0.06	−0.25