oce (version 1.5-0)

gravity: Acceleration due to earth gravity

Description

Compute $g$, the acceleration due to gravity, as a function of latitude.

Usage

gravity(latitude = 45, degrees = TRUE)

Arguments

latitude

Latitude in ${}^{\circ }$N or radians north of the equator.

degrees

Flag indicating whether degrees are used for latitude; if set to FALSE, radians are used.

Value

Acceleration due to gravity, in $m^2/s$.

Details

Value not verified yet, except roughly.

References

Gill, A.E., 1982. Atmosphere-ocean Dynamics, Academic Press, New York, 662 pp.

Caution: Fofonoff and Millard (1983 UNESCO) use a different formula.

Examples

# NOT RUN {
g <- gravity(45) # 9.8
# }