section {oce} | R Documentation |
A CTD section running the length of Halifax Harbour.
data(section)
The individual stations are available as section$station[[1]]
through
to section$station[[7]]
, each of which is an object of type
ctd
.
Dan Kelley
This section is based on measurements made during October of 2003 in
Halifax Harbour by students in the Introduction to Physical Oceanography
class at Dalhousie University. The course was taught
Dan Kelley (the author of this package) and supervision at sea was
provided by teaching assistant Natacha Bernier, at the time a PhD student at
Dalhousie. Note the alteration of two station locations, to correct errors in
transcribing field notes (e.g. a hand-written 8
was evidently typed as
3
).
library(oce) stn08 <- ctd.trim(read.ctd("BED0308.CNV", station="8")) stn09 <- ctd.trim(read.ctd("BED0309.CNV", station="9")) stn10 <- ctd.trim(read.ctd("BED0310.CNV", station="10")) stn01 <- ctd.trim(read.ctd("BED0301.CNV", station="1")) stn11 <- ctd.trim(read.ctd("BED0311.CNV", station="11")) stn12 <- ctd.trim(read.ctd("BED0312.CNV", station="12")) stn12 <- oce.edit(stn12, "latitude", 44 + 39.894 / 60, "typo in lat minutes", "Dan Kelley") stn13 <- ctd.trim(read.ctd("BED0313.CNV", station="13")) stn15 <- ctd.trim(read.ctd("BED0315.CNV", station="15")) stn15 <- oce.edit(stn15, "latitude", stn15$metadata$latitude + 1, "typo in lat degrees", "Dan Kelley") section <- make.section(stn08, stn09, stn10, stn01, stn11, stn12, stn13, stn15) section <- oce.edit(section, "section.id", "Halifax-Harbour-2003-oct", "", "Dan Kelley") p <- seq(0, 30, 2.5) section <- section.grid(section, p=p, method="boxcar") data(coastline.hal) plot(section, coastline=coastline.hal, grid=TRUE)The stations cover a 14 km region running from station 308, near the Sackville River, seaward to station 315, at the entrance to the general Harbour, offshore of the lovely Point Pleasant Park.
A summary of the stations can be obtained from summary.section
,
and a plot can be created with plot.section
.