Wind Variations in a 120 Meter Layer at Tarapur

摘要

The empirical power law approach has been used in the study of wind data collected on a 120 meter high meteorological tower located near the sea coast at Tarapur. The wind instruments are installed at five different heights on this tower. Simultaneously, continuous recording of other meteorological variables like wind direction and ambient air temperatures at the same level is made. The study indicates a wide variation in the value of p (power index of wind profile). A peculiar anomaly in wind profile is observed during winter at the time of onset of sea breeze resulting in the negative values of p. The diurnal variations of p in different seasons are discussed. The variations of p with atmospheric stability parameter indicate a sharp change when the value of stability parameter B reaches to -7 x 10 exp -4 m exp -1 which corresponds to the situation when forced convection regime changes to free convection regime in atmosphere. (Atomindex citation 11:552366)