DAILY AND HOURLY WIND-SPEED DISTRIBUTION IN BAHRAIN

The characteristics of daily (for 11 yr) and hourly (for 8 yr) wind speed data, recorded at the Meteorological Office of the Civil Aviation Directorate, Bahrain, have been studied. It shows a very high daily fluctuation of wind speed for the winter months. The daily wind speed starts and ends high for most days of the month. It drops in the first and last 10 days of the month, and then remains almost constant in the mid-10 days of the month. The hourly wind speed attains its maximum value at around 10-12 h local time. A mathematical model is obtained for prediction of wind speed at any hour of the day. The following equation can predict the wind speed at any hour of the day using local time: u = 0.001349 t3 - 0.06227 t2 + 0.7568 t + 3.253.