Interannual and month-to-month variations of wind speed.

Abstract

Spatial cross correlations and interannual and month-to-month variations of monthly mean wind speed were studied at 40 sites throughout the United States. Sites were selected on the basis of availability of 10 or more years of data from a fixed anemometer location and height and a climatological mean speed of 5 m s-1 (11 mph) or higher. Spatial cross correlations of monthly deviations from annual climatic means were found to be about 0.5 for sites seperated less than 200 km, with annual mean wind deviations from the climatic mean correlated with coefficient value 0.32 for similarly seperated sites. - from Authors