Abstract
High frequency temperature measurements were recorded at five heights and surface renewal (SR) analysis was used to estimate sensible heat flux density (H) over 0.1 m tall grass. Traces of the temperature data showed ramp-like structures, and the mean amplitude and duration of these ramps were used to calculate H using structure functions. Data were compared with H values measured with a sonic anemometer. Latent heat flux density (λE) was calculated using an energy balance and the results were compared with λE computed from the sonic anemometer data. SR analysis provided good estimates of H for data recorded at all heights but the canopy top and at the highest measurement level, which was above the fully adjusted boundary layer.
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Snyder, R.L., Spano, D. & Pawu, K.T. Surface renewal analysis for sensible and latent heat flux density. Boundary-Layer Meteorol 77, 249–266 (1996). https://doi.org/10.1007/BF00123527
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DOI: https://doi.org/10.1007/BF00123527