marelac (version 2.0)

sw_depth: Water Depth

Description

Computes the water depth for water of salinity 35, and temperature 0 dg C, based on latitude and hydrostatic pressure, using the UNESCO 1983 polynomial.

Usage

sw_depth(p = P-1.013253, P=1.013253, lat = 0)

Arguments

p

gauge or applied pressure, pressure referenced against the local atmospheric pressure, bar

P

true pressure, bar

lat

latitude (-90 to +90), -,

Value

• Water depth in m.

References

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

See Also

sw_adtgrad, sw_alpha, sw_beta, sw_comp, sw_conserv, sw_cp, sw_dens, sw_enthalpy, sw_entropy, sw_gibbs, sw_kappa, sw_kappa_t, sw_sfac, sw_svel, sw_tfreeze, sw_tpot

Examples

sw_depth(p = 1000, lat = 30:40)

## Check values
sw_depth(p = 1000, lat = 30)     #9712.65
sw_depth(p = 50,  lat = 30)       #496.00
sw_depth(p = 50,  lat = 60)       #494.69
sw_depth(p = 500, lat = 60)       #4895.60