gsw (version 1.0-3)

gsw_Sstar_from_SP: Convert from Practical Salinity to Preformed Salinity

Description

Calculate Preformed Salinity from Practical Salinity, pressure, longitude, and latitude.

Usage

gsw_Sstar_from_SP(SP, p, longitude, latitude)

Arguments

SP

Practical Salinity (PSS-78) [ unitless ]

p

sea pressure [ dbar ]

longitude

longitude in decimal degrees [ 0 to 360 or -180 to 180]

latitude

latitude in decimal degrees [ -90 to 90 ]

Value

Preformed Salinity [ g/kg ]

Details

If SP is a matrix and if its dimensions correspond to the lengths of longitude and latitude, then the latter are converted to analogous matrices with expand.grid.

References

http://www.teos-10.org/pubs/gsw/html/gsw_Sstar_from_SP.html

See Also

gsw_SP_from_Sstar does the reverse; gsw_Sstar_from_SA is similar.

Examples

# NOT RUN {
gsw_Sstar_from_SP(34.5487, 10, 188, 4) # 34.711553680880769
# }