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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Derivation of the aerodynamic roughness parameters for a Sahelian savannah site using the eddy correlation technique
Boundary-Layer Meteorology, Volume 58, No. 3, Year 1992
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Description
Vertical exchange of heat, moisture and momentum above the earth's surface depends strongly on the turbulence generated by surface roughness. This roughness is best specified through the roughness length and the zero plane displacement. The ratio of windspeed to friction velocity was measured at four heights using the eddy correlation technique at a fallow savannah site in the Sahel. The change in this ratio with height was used to derive the zero plane displacement and the roughness length of the surface, together with an estimate of the error in each parameter. These were estimated as 0.93 ± 0.35 m and 0.17 ± 0.01 m, respectively. The method appears to be a more robust alternative to wind profile derivation. © 1992 Kluwer Academic Publishers.
Authors & Co-Authors
Lloyd, C. R.
Unknown Affiliation
Gash, J. H.C.
Unknown Affiliation
Sivakumar, Mannava V.K.
Unknown Affiliation
Statistics
Citations: 38
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1007/BF02033827
ISSN:
00068314
e-ISSN:
15731472