Author： Kohsiek W. Meijninger W. Debruin H. Beyrich F.
Publisher： Springer Publishing Company
ISSN： 0006-8314
Source： Boundary-Layer Meteorology, Vol.121, Iss.1, 2006-10, pp. : 111-126
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Abstract
The saturation aspects of a large aperture (0.3 m) scintillometer operating over a 10-km path were investigated. Measurements were made over mainly forested, hilly terrain with typical maximum sensible heat fluxes of 300–400 W m −2, and over flat terrain with mainly grass, and typical maximum heat fluxes of 100–150 W m−2. Scintillometer-based fluxes were compared with eddy-correlation observations. Two different schemes for calculating the reduction of scintillation caused by saturation were applied: one based on the work of Hill and Clifford, the other based on Frehlich and Ochs. Without saturation correction, the scintillation fluxes were lower than the eddy-correlation fluxes; the saturation correction according to Frehlich and Ochs increased the scintillometer fluxes to an unrealistic level. Correcting the fluxes after the theory of the Hill and Clifford gave satisfying results
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