ctd_bplot: Plot contours of bottom water variable by station and time

In fawda123/CTDplot: Plot CTD water quality data along an estuarine axis

Plot contours of bottom water variable by station and time

Description

Plot two-dimensional CTD contours for bottom water variable by station and time

Usage

ctd_bplot(
  dat_in,
  var_plo,
  date_col = "Date",
  num_levs = 8,
  expand = 200,
  txt_scl = 1,
  xlab = "Date",
  ylab = "Channel distance (km)",
  cols = c("tomato", "lightblue", "lightgreen", "green"),
  ncol = 100
)

Arguments

dat_in	ctd data along the tidal axis, as a data.frame
var_plo	chr string of variable to plot from dat_in
date_col	chr string of name of date column
num_levs	numeric for number of contour levels
expand	numeric for expanding sample size of CTD points, see get_depths
txt_scl	numeric for scaling all text labels
xlab	chr string for x-axis label
ylab	chr string for y-axis label
cols	chr string of colors for the plot
ncol	numeric indicating degree of smoothing for the color palette

Details

Raw data from the CTD are vertical profiles at unique stations for more than one date. The data are linearly interpolated between dates and stations to create a two-dimensional plotting surface. The dat_in data.frame must have at a minimum six columns for date (Date), longitude (Long), latitude (Lat), station name (Station), depth (Depth, non-negative), and the variable to plot.

Sample dates are shown as triangles on the top and station locations are shown on the right.

Value

The contour plot

Examples

# default plot
ctd_bplot(ctd, var_plo = 'DO')

fawda123/CTDplot documentation built on June 8, 2024, 1:07 p.m.