gravity: Gravity on Earth

In marelac: Tools for Aquatic Sciences

Description

Computes the gravity, based on latitude.

Usage

gravity(lat = 0, method = c("Moritz", "UNESCO"))

Arguments

lat	latitude (-90 - +90).
method	When "UNESCO", uses the UNESCO (1983) polynomial, else according to Moritz, 2000

Value

Gravity, in m/s2.

Author(s)

Karline Soetaert <[e-mail]>

References

The UNESCO polynomial:

Fofonoff NP and Millard RC Jr, 1983. Algorithms for computation of fundamental properties of seawater. UNESCO technical papers in marine science, 44, 53 pp.
http://unesdoc.unesco.org/images/0005/000598/059832EB.pdf

Moritz H, 2000. Geodetic reference system 1980. Journal of Geodesy 74, 128-133.

See Also

coriolis, viscosity, diffcoeff, ssd2rad, vertmean

Examples

gravity(lat = 30)

marelac documentation built on Feb. 12, 2020, 3 a.m.