ctd_df.csv - raw data from ctd instruments
ctd_trimmed_df.csv - trimmed data, removed in-air measurements, remove upcasts. 

completedMetaData.csv - metadata for the two other files. Station names 
filename - path to original data file (*.cnv, seabird instruments output)	
date	
longitude_original	
latitude_original	
stationcode_original	
flag_changes	
notes_metadata	- notes on metadata modifications/additions
stationcode_donar - matched to known station code in Donar	
latitude_donar	- matched to lat by station code
longitude_donar		- matched to lon by station code
notes_location	- notes on location modifications/additions
lat	- original lat OR if not available, donar lat
lng	- original lon OR if not available, donar lon
filename2 - truncated path and "\\" replaced by "_" to match/join with ctd files


longTable - "long table" - join between ctd_trimmed_df and completedMetadata, and "uncrossed" (melt) to a long table with variables below

seabird2donar2aquo.csv - mapping between field "variable" in longTable.csv and BODC and AQUO terms.


longTable.csv contains the following variables:

                     variable       N
 1:               temperature 2398170
 2:              temperature2 1757898
 3:              conductivity 2232588
 4:             conductivity2 1756982
 5:          beamTransmission  379244
 6:           beamAttenuation   36822
 7:              fluorescence 2102288
 8:                       par 1841913
 9: CPAR.Corrected.Irradience 1858838
10:                      spar 1684151
11:                      flag 2387210
12:                  salinity 2397889
13:                    oxMg.L  246541
14:                    oxML.L    8791
15:                      oxPS  130611
16:                    oxygen 2110133
17:                   oxygen2 2108763
18:                      scan 2364070
19:              bottlesFired 1779098
20:                  latitude 1187094
21:                 longitude 1187068
22:                        pH 2389732
23:                       pH2  276141
24:                       pH3   32597
25:                       pH4   12126