Search Results - Charnock, Henry

Henry Charnock

Henry Charnock (25 December 1920 – 28 November 1997) was a British meteorologist. He is well known for his work on surface roughness and wind stress over water surfaces. The now named "Charnock's relationship" describes the aerodynamic roughness length, $z\_0$, over a water surface by:

$z\_0=C\; u\_*^2/g$

where $u\_*$ is the friction velocity and $g$ is the acceleration due to gravity (typically the Standard gravity). $C$ is Charnock's proportionality constant.

Charnock was President of the International Union of Geodesy and Geophysics (IUGG) from 1971 to 1975. Provided by Wikipedia