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Parameterization of exchange processes over a barley field

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Abstract

Wind and temperature profiles and surface radiation temperature were measured over barley during two observation periods in Estonia. The calculated displacement height (d) could be taken as 3/4 and 2/3 of the canopy height (h) for a dense and a moderate canopy respectively. The roughness length for wind speed was best approximated with the relation z0u = 0.3(h - d). The excess resistance to heat exchange kB-1 was the most doubtful parameter, but it was concluded that kB-1 = 2 is a good estimate for the time being.

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Author notes

  1. Meelis Mölder

    Present address: Department of Hydrology, Uppsala University, Norbyvägen 18B, 752 36, Uppsala, Sweden

Authors and Affiliations

  1. Institute of Astrophysics and Atmospheric Physics, Estonian Academy of Sciences, EE-2444 Tõravere, Tartumaa, Estonia

    Meelis Mölder

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  1. Meelis Mölder
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Mölder, M. Parameterization of exchange processes over a barley field. Boundary-Layer Meteorology 84, 341–361 (1997). https://doi.org/10.1023/A:1000440810194

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