sw.depth {oce} | R Documentation |
Compute depth from pressure and latitude.
d <- sw.depth(p, lat, degrees=TRUE);
p |
Pressure [dbar]. |
lat |
Latitude in degN or radians north of the equator. |
degrees |
Flag indicating whether degrees are used for latitude;
if set to FALSE , radians are used. |
The information given below is adapted from the fortran code at
http://sam.ucsd.edu/sio210/propseawater/ppsw_fortran/ppsw.f
,
which is where this R code came from.
Depth in meters from pressure in decibars using Saunders and Fofonoff's method, with the formula refitted for 1980 equation of state
Checkvalue: depth = 9712.653 m for p=10000 decibars, latitude=30 deg above for standard ocean: t=0 deg. celsuis ; s=35 (ipss-78)
Depth [m].
Dan Kelley Dan.Kelley@Dal.Ca
(authors), 1976, (title), Deep-Sea Res., 23, 109-111.
N/A.
d <- sw.depth(10, 45);