Henry Charnock

Henry Charnock CBE FRS^[1] (25 December 1920 – 28 November 1997) was a British meteorologist.^[2] 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:^[3]

$z_{0}=Cu_{*}^{2}/g$

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.

^ Cartwright, D. E. (1999). "Henry Charnock, C.B.E. 25 December 1920 -- 27 November 1997: Elected F.R.S. 1976". Biographical Memoirs of Fellows of the Royal Society. 45: 35. doi:10.1098/rsbm.1999.0004. S2CID 140594865.
^ Cartwright, D. E. (2004). "The Oxford Dictionary of National Biography". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/68802. (Subscription or UK public library membership required.)
^ Stull, R. B. (1988). "An Introduction to Boundary Layer Meteorology". Kluwer Academic Publishers. ISBN 978-94-009-3027-8.

[frs-1] Cartwright, D. E. (1999). "Henry Charnock, C.B.E. 25 December 1920 -- 27 November 1997: Elected F.R.S. 1976". Biographical Memoirs of Fellows of the Royal Society. 45: 35. doi:10.1098/rsbm.1999.0004. S2CID 140594865.

[odnb-2] Cartwright, D. E. (2004). "The Oxford Dictionary of National Biography". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/68802. (Subscription or UK public library membership required.)

[stull1988-3] Stull, R. B. (1988). "An Introduction to Boundary Layer Meteorology". Kluwer Academic Publishers. ISBN 978-94-009-3027-8.

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