The basics of downloading CTD data are outlined in this vignette, as
a supplement to a shorter entry in the main
vignette.
Basics
The function dod.ctd can download ctd data from the
Bedford Basin Mooring Program (BBMP), Bermuda Atlantic Time Series
(BATS), Global Temperature and Salinity Program (GTSPP) etc by calling
their respective functions dod.ctd.bbmp,
dod.ctd.bats or dod.ctd.gtspp.
Finding Desired ID
BBMP
In the dod.ctd.bbmp function, ID is the
desired file from the index. Once the index is downloaded using the
dod.ctd function, provide the file name from the index you
want to download for the argument ID.
eg ID= “D22667034.ODF”
GTSPP
For GTSPP, ID is 8 digits with the first two digits
meaning the ocean basin initial (at, pa, in), the next four digits
meaning the year of interest and the last two being the month of
interest.
eg To attain data from the Atlantic in January 1985
input: ID=“at198501”.
Example: Downloading BBMP Data
This is a basic example which shows you how to download ctd index
from the BBMP program in the year 2022 and download, read and plot the
first item in the index using the oce package.
library(dod)
library(oce)
index <- dod.ctd("BBMP", 2022, index=TRUE, file="bbmp.txt", read=TRUE)
item <- index[1,"file"]
file <- dod.ctd(program="BBMP", year=2022, ID=item, file="bbmp.txt", read=TRUE)
plot(file)