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lisst
.read.lisst(file, year=0, tz="UTC", latitude=NA, longitude=NA)
class
"lisst"
, which is a
list with slots as detailed below.C1
to C32
,
which are volume concentrations (in microliters per liter) for size
classes 1 through 32, along with
lts
(laser transmission sensor, column 33),
voltage
(battery voltage in calibrated units, column 34),
aux
(external auxiliary input 1 in calibrated units, column 35),
lrs
(laster reference sensor in calibrated units, column 36),
pressure
(pressure in dbar, column 37),
temperature
(in degrees C, column 38),
dayhour
(day*100 +hour, column 39),
minutesecond
(minute*100+second, column 40),
transmission
(computed percent optical transmission over path, column 41),
beam
(computed beam-C in units of 1/m, column 42),
and
time
{a POSIXct time calculated from dayhour
and
minuteseconds
, using the year
specified as an argument,
or the present year, if the year was not given, and using timezone
tz
.}filename
, the
name of the file holding the data, latitude
, the latitude of the
observations, and longitude
, the longitude of the observations.oce
format.read.oce
can recognize LISST files by
their having a name ending in ".asc"
and by having 42 elements on
the first line. Even so, it is preferred to use the present function,
because it gives the opportunity to specify the year and timezone, so that
times can be calculated properly.lisst-class
explains the structure
of lisst
objects, and also outlines the other functions dealing with
them. In particular, read.lisst
uses as.lisst
to
create the LISST object that is returned.