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oce (version 0.1.69)

section: Sample seawater (CTD) section

Description

A CTD section running the length of Halifax Harbour.

Usage

data(section)

Arguments

format

The individual stations are available as section$stations[[1]] through to section$stations[[7]], each of which is an object of type ctd.

source

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, taught by Dan Kelley; 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) p <- seq(0, 30, 0.5) stn08 <- ctd.decimate(ctd.trim(read.ctd("BED0308.CNV", station="308")),p=p) stn09 <- ctd.decimate(ctd.trim(read.ctd("BED0309.CNV", station="309")),p=p) stn10 <- ctd.decimate(ctd.trim(read.ctd("BED0310.CNV", station="310")),p=p) stn01 <- ctd.decimate(ctd.trim(read.ctd("BED0301.CNV", station="301")),p=p) stn11 <- ctd.decimate(ctd.trim(read.ctd("BED0311.CNV", station="311")),p=p) stn12 <- ctd.decimate(ctd.trim(read.ctd("BED0312.CNV", station="312")),p=p) stn12$latitude <- 44 + 39.894 / 60 stn12 <- processing.log.append(stn12, "DEK: change lat minutes from 39.394 to 39.894 (typo)") stn13 <- ctd.decimate(ctd.trim(read.ctd("BED0313.CNV", station="313")),p=p) stn15 <- ctd.decimate(ctd.trim(read.ctd("BED0315.CNV", station="315")),p=p) stn15$latitude <- stn15$latitude + 1 stn15 <- processing.log.append(stn15, "DEK add 1 to lat (typo") section <- make.section(stn08, stn09, stn10, stn01, stn11, stn12, stn13, stn15) section$section.id <- "Halifax-Harbour-2003-oct" 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.

References

A summary of the stations can be obtained from summary.section, and a plot can be created with plot.section.