DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
A STUDY OF THE WIND PROFILE IN THE LOWEST 400 FEET OF THE ATMOSPHERE
BROOKHAVEN NATIONAL LAB UPTON N Y
Pagination or Media Count:
The predictability is discussed of wind speed from the wind speed at a lower reference level by using an unweighted predictor of varying average length and relative displacement in time. Two models were tested and compared to the best possible linear predictor a simple model and a mean model. Four different gustiness conditions were ANALYZED TO SHOW THE EFFECTS OF LAGGING THE REFERENCE LEVEL BY 0, 30, 60, 90, AND 120 SEC AND INCREASING ITS AVERAGING LENGTH BY FACTORS OF 1, 2, AND 4. The predicted averaging lengths studied were 3, 12, 30, 60, and 180 sec. It is assumed in using the predictor models that the average wind speeds are known or can be estimated. Therefore, the ability to predict the hourly average wind speeds at 355 ft from the 37-ft level for a 2-mo period by using a power law relationship was also tested. Preliminary results are presented. Author
APPROVED FOR PUBLIC RELEASE