A new ctd object is assembled from the contents of the rsk object.
The data and metadata are mostly unchanged, with an important exception: the
pressure item in the data slot may altered, because rsk
instruments measure total pressure, not sea pressure; see “Details”.
rsk2ctd(
x,
pressureAtmospheric = 0,
longitude = NULL,
latitude = NULL,
ship = NULL,
cruise = NULL,
station = NULL,
deploymentType = NULL,
debug = getOption("oceDebug")
)A numerical value (a constant or a vector),
that is subtracted from the pressure in object before storing it in the return value.
numerical value of longitude, in degrees East.
numerical value of latitude, in degrees North.
optional string containing the ship from which the observations were made.
optional string containing a cruise identifier.
optional string containing a station identifier.
character string indicating the type of deployment (see
as.ctd()).
an integer specifying whether debugging information is
to be printed during the processing. This is a general parameter that
is used by many oce functions. Generally, setting debug=0
turns off the printing, while higher values suggest that more information
be printed. If one function calls another, it usually reduces the value of
debug first, so that a user can often obtain deeper debugging
by specifying higher debug values.
The pressureType element of the
metadata of rsk objects defines the pressure type, and this controls
how pressure is set up in the returned object. If object@metadata$pressureType
is "absolute" (or NULL) then the resultant pressure will be adjusted
to make it into "sea" pressure. To do this, the value of
object@metadata$pressureAtmospheric is inspected. If this is present, then
it is subtracted from pressure. If this is missing, then
standard pressure (10.1325 dbar) will be subtracted. At this stage, the
pressure should be near zero at the ocean surface, but some additional adjustment
might be necessary, and this may be indicated by setting the argument pressureAtmospheric to
a non-zero value to be subtracted from pressure.