CTD bottle cast data as example data frame for visualization functions.
cc_bottle
A data frame (851,493: rows x columns) with variables:
longitude
latitude
date
quarter
depth below the surface in meters
difference in position, from 5 (nearshore), 10 (offshore) to 20 (outside 113 station extended area)
temperature (Celsius)
salinity (TODO: units)
oxygen saturation (TODO: units)