sw.sound.speed {oce} | R Documentation |
Compute the seawater speed of sound.
sw.sound.speed(S, t=NULL, p=NULL)
S |
either salinity [PSU] (in which case t and p
must be provided) or a ctd object (in which case
S , t and p are determined from the object, and
must not be provided in the argument list). |
t |
in-situ temperature [degC] |
p |
pressure [dbar] |
If the first argument is a ctd
object, then salinity,
temperature and pressure values are extracted from it, and used for
the calculation.
The sound speed is calculated using the formulation in section 9 of Fofonoff and Millard (1983).
Sound speed [m/s].
Dan Kelley
Fofonoff, P. and R. C. Millard Jr, 1983. Algorithms for computation of fundamental properties of seawater. Unesco Technical Papers in Marine Science, 44, 53 pp. (See section 9.)
s <- sw.sound.speed(40, 40, 10000) # 1731.995 (p48 of Fofonoff + Millard 1983)