Compute $$f$$, the Coriolis parameter as a function of latitude (see reference 1), assuming earth siderial angular rotation rate $$omega$$=7292115e-11 rad/s. See reference 1 for general notes, and see reference 2 for comments on temporal variations of $$omega$$.

coriolis(latitude, degrees = TRUE)

## Arguments

latitude

Vector of latitudes 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

Coriolis parameter, in radian/s.

## References

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

2. Groten, E., 2004: Fundamental Parameters and Current, 2004. Best Estimates of the Parameters of Common Relevance to Astronomy, Geodesy, and Geodynamics. Journal of Geodesy, 77:724-797. (downloaded from http://www.iag-aig.org/attach/e354a3264d1e420ea0a9920fe762f2a0/51-groten.pdf March 11, 2017).

Dan Kelley

## Examples

C <- coriolis(45) # 1e-4