oce (version 0.1.62)

plot.TS: Plot temperature-salinity diagram for seawater (CTD) data

Description

Plot temperature-salinity diagram for seawater (CTD) data.

Usage

plot.TS(x, rho.levels = 4, grid = FALSE,
	col.data="black", col.rho="blue",  col.grid = "lightgray",
	debug=FALSE, ...)

Arguments

x

A cdt object, e.g. as read by read.ctd.

rho.levels

Either a list of density levels for which to draw isopycnal lines, or a suggestion for the number of levels. In the latter case, an attempt is made to draw this number of levels, with "clean" isopycnal values (in which the

grid

Set TRUE to get a grid.

col.data

Color for data.

col.rho

Color for isopycnal lines.

col.grid

Color of grid.

debug

Flag to turn on debugging mode (prints info on isopycnal choices)

...

optional arguments passed to plotting functions.

Value

• None.

Details

Creates a temperature-salinity plot for a CTD cast.

See Also

summary.ctd summarizes the information, while read.ctd scans it from a file.

Examples

library(oce)
profile <- read.ctd("/usr/local/lib/R/library/oce/demo/ctdprofile.cnv")
attach(profile)
plot.TS(profile)
# North Atlantic thermocline water, mixing to Antarctic Intermediate Water
# (after Defant's analysis)
N <- 10
Srange <- c(34.15, 35.94)
Trange <- c(3.3,18)
SS <- Srange[1] + (Srange[2] - Srange[1]) *(1:N)/(N-1) + 0.01*rnorm(N)
TT <- Trange[1] + (Trange[2] - Trange[1]) *(1:N)/(N-1) + 0.01*rnorm(N)
plot.TS(as.CTD(S=SS, T=TT, p=0),type='b',pch=19)