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Wind profile at forest and pasture sites in Amazonia

During the dry station of 1994 a study of the behavior of the wind profile was made using measurements from radiossonde, in forest and pasture areas in the Ji-Paraná region, Rondônia. The wind in the forest is, on average, 2 m.s-1 more strong than pasture, and the mean wind direction comes from ENE above 1000m and from ESE in the area below, in both sites. Is possible to view maximum winds in both sites, near 2000 m, around 8 local time, of about 8,0 m.s-1 and 6,5 m.s-1 at forest and pasture, respectively. The estimated heights of the convective boundary layer are similar the ones computed by thermodynamics methods.

climate; Amazonian rain forest; pasture


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