Skip to main content
OCADSAccess DataNDP-082NDP-082 Data Package Descriptions

Data Package Descriptions

7.1 File Content and Format Descriptions

This section describes the content and format of each of the data files that constitute NDP-082 (see Table 7).

Table 7. Content, Size, and Format of Data Files

File number, name, and description File size in bytes
12. A detailed description of the cruise network, and oceanographic data files in simple text and PDF formats
ndp082.txt 106,779
ndp082.pdf 5,101,440
36. A listing of the station locations, sampling dates, and sounding bottom depths for each station of WOCE Sections A20, A22, A24, and AR24 in the original WOCE format
a20sta.dat 7,838
a22sta.dat 6,926
a24sta.dat 12,702
ar24sta.dat 15,438
710. Hydrographic, carbon dioxide, and chemical data from all stations occupied on WOCE Sections A20, A22, A24, and AR24. The files are reported in the original WOCE format
a20.dat 476,060
a22.dat 403,860
a24.dat 657,510
ar24.dat 598,397
1114. Hydrographic, carbon dioxide, and chemical data from all stations occupied on WOCE Sections A20, A22, A24, and AR24. The files are provided as WOCE exchange format files [comma-separated value (CSV) files].
a20_hy1.csv 857,377
a22_hy1.csv 701,706
a24_hy1.csv 1,050,215
ar24_hy1.csv 932,634
15. The Ocean Data View spread sheet data file. The file consists of data from all four sections of the North Atlantic survey
NA_ODV_data.txt 2,410,877
Total size 13,339759

7.2 Description of Variables

station number

The station inventory file (*sta.dat) variables are defined as follows:
EXPOCODE Character (A10) expedition code of the cruise
SECT Character (A4) WOCE section number
STNBR Numeric (I3) station number
CAST Numeric (I1) cast number
DATE Character (A10) sampling date (month/day/year)
TIME Character (A4) sampling time [Greenwich mean time (GMT)]
LATITUDE Numeric (F7.3) latitude of the station (in decimal degrees; negative values indicate the Southern Hemisphere)
LONGITUDE Numeric (F8.3) longitude of the station (in decimal degrees; negative values indicate the Western Hemisphere)
DEPTH Numeric (I4) sounding depth of the station (in meters)
The data file (*.dat) variables are defined as follows:
STNBR Numeric (I3) station number
CASTNO Numeric (I1) cast number
SAMPNO Numeric (I2) sample number
BTLNBRa Numeric (I2) bottle number
CTDPRS Numeric (F7.1) CTD pressure (dbar)
CTDTMP Numeric (F7.4) CTD temperature (°C)
CTDSALa Numeric (F7.4) CTD salinity
CTDOXYa Numeric (F7.1) CTD oxygen (μmol/kg)
THETA Numeric (F7.4) potential temperature (°C)
SALNTYa Numeric (F9.4) bottle salinity
OXYGENa Numeric (F7.1) oxygen concentration (μmol/kg)
SILCATa Numeric (F7.2) silicate concentration (μmol/kg)
NITRATa Numeric (F7.2) nitrate concentration (μmol/kg)
NITRITa Numeric (F7.2) nitrite concentration (μmol/kg)
PHSPHTa Numeric (F7.2) phosphate concentration (μmol/kg)
CFC-11a Numeric (F8.3) chlorofluorocarbon 11 (picamole/kg)
CFC-12a Numeric (F8.3) chlorofluorocarbon 12 (picamole/kg)
TCARBNa Numeric (F7.1) total carbon dioxide concentration (μmol/kg)
ALKALIa Numeric (F7.1) total alkalinity (μmol/kg)
PCO2a Numeric (F7.1) partial pressure of CO2 (μatm)
PHa Numeric (F8.3) pH
QUALT1 Character (A15) 15-digit character variable that contains data-quality flag codes for parameters underlined with asterisks (*******) in the file header

aVariables that are underlined with asterisks in the data files header indicate they have a data-quality flag. Data-quality flags are defined as follows:

1  =  sample for this measurement was drawn from water bottle but analysis was not received
2  =  acceptable measurement
3  =  questionable measurement
4  =  bad measurement
5  =  not reported
6  =  mean of replicate measurements
9  =  sample not drawn for this measurement from this bottle
Last modified: 2021-03-17T18:30:28Z