  Adjusting ocean wind observations to a standard height, usually 10 m,
requires the use of a boundary layer model, and knowledge of the
thermodynamical variables. Height adjustment is complicated by the fact that a
necessary parameter, the roughness height, cannot be given in a closed form
solution. If only the wind and reporting height are known, the best that can be
done is to assume neutral stability. The determination of roughness height is
analyzed and a simple approximation (used by Atlas et al. 2011) is derived in
detail. This approximation is accurate for winds in the range of 1 - 30 m/s for
neutral stratification and would be an excellent initial estimate for a Newton
iteration to determine the roughness height precisely, whether or not neutral
stability is assumed.
