ALGORITHMS FOR OBTAINING ATMOSPHERIC SURFACE-LAYER FLUXES FROM SCINTILLATION MEASUREMENTS

Algorithms are derived for obtaining atmospheric surface-layer fluxes of heat, humidity, and momentum from scintillation measurements. Both the three-wavelength and two-wavelength methods are examined, as is co mbining the two-wavelength method with other micrometeorological measu rements. Corrections for the effects of strong scintillation are discu ssed. Deriving turbulence inner-scale and refractive structure paramet ers from scintillation variances is discussed, as is using these quant ities to obtain the energy dissipation rate and structure parameters o f temperature and humidity. Given these latter quantities, Monin-Obukh ov similarity theory is applied to specific humidity and temperature ( equivalently, potential temperature) to obtain the fluxes.