Abstract
During the MESOKLIP experiment continuous measurements of global radiation, S + D, reflected short-wave radiation, r, and net all-wave radiation, R n, were made over bare soil, over maize, and in a vineyard. Knowing S + D, r, and R n, all the terms of the radiation budget can be then calculated for each of these different surfaces. For a sunny day the results show the diurnal variations of the radiation flux densities over bare soil, maize and vines, and in addition for the whole period of investigation the representative values of the surface albedo for bare soil (17%), maize (20%) and a vineyard (20%). Regressions between R n and S + D, R n and the net short-wave radiation, R s, for the three surfaces reveal no advantage in using R s, as often mentioned in the literature, instead of S + D. Regressions between the net long-wave radiation, R 1, and R s give information about the long-wave radiation exchange at the surface of bare soil, maize, and a vineyard.
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