Abstract
Abstract : This paper demonstrates the feasibility of estimating vertical and horizontal turbulence values from wind speed and vertical temperature gradient. It is shown that daytime solar angle is highly correlated with vertical temperature gradient. Vertical temperature gradient is also correlated with measured net radiation. At night, vertical temperature gradient is correlated with net radiation and wind speed. Bulk Richardson's number can be calculated from vertical temperature gradient and wind speed. Monin-Obukhov length scale can be calculated from bulk Richardson's number. It is shown from Kansas Windy Acres data that horizontal and vertical turbulence can be estimated from surface roughness, Monin-Obukhov length scale and wind speed. Hence turbulence values can be assigned for each vertical temperature gradient, wind speed combination. The associated Pasquill category can be determined from the turbulence values. (Author) It is shown from Kansas Windy Acres data that horizontal and vertical turbulence can be estimated from surface roughness, Monin-Obukhov length scale and wind speed. Hence turbulence values can be assigned for each vertical temperature gradient, wind speed combination. The associated Pasquill category can be determined from the turbulence values.
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