World Ocean Database: code tables

WOD code table: Depth-dependent variables in WOD

Code	Parameter	WOD standard unit or scale (nominal abbreviation)	Dataset(s) where variable(s) is/are stored (nominal abbreviations)
1	Temperature	Degrees Celsius (°C)	OSD; CTD; MBT; XBT; SUR; APB; MRB; PFL; UOR; DRB; GLD
2	Salinity	Dimensionless (unitless)	OSD;CTD; SUR; MRB; PFL; UOR; DRB; GLD
3	Oxygen [O2]	Micromole per kilogram (µmol/kg)	OSD; CTD; PFL; UOR; DRB; GLD
4	Phosphate [HPO4-2]	Micromole per kilogram (µmol/kg)	OSD
6	Silicate [Si(OH)4]	Micromole per kilogram (µmol/kg)	OSD
8	Nitrate [NO3-] and Nitrate+Nitrite	Micromole per kilogram (µmol/kg)	OSD
9	pH	Dimensionless	OSD; SUR
11	Total Chlorophyll [Chl] unless specified	Microgram per liter (µg l-1)	OSD; CTD; SUR; PFL; UOR; DRB; GLD
17	Alkalinity [TALK] unless specified	Milliequivalent per liter (meq l-1)	OSD; SUR
20	Partial pressure of carbon dioxide [pCO2]	Microatmosphere (µatm)	OSD; SUR
21	Dissolved Inorganic carbon [DIC]	Millimole per liter (mM)	OSD
24	Transmissivity (BAC)1	Per meter (m-1)	CTD; PFL; DRB; UOR; GLD
25	Pressure	Decibar	OSD; CTD; UOR; GLD; PFL; DRB;
26	Air temperature	Degree Celsius (°C)	SUR
27	CO2warming	Degree Celsius (°C)	SUR
28	xCO2atmosphere	Parts per million (ppm)	SUR
29	Air pressure	Millibar (mbar)	SUR
30	Latitude3	Degrees	SUR; APB; UOR
31	Longitude3	Degrees	SUR; APB; UOR
32	Julian year-day2;3	Day	SUR; APB; UOR
33	Tritium [3H]	Tritium Unit (TU)	OSD
34	Helium [He]	Nanomole per kilogram (nmol/kg)	OSD
35	Delta Helium-3 [3He]	Percent (%)	OSD
36	Delta Carbon-14 [14C]	Per mille (0/00)	OSD
37	Delta Carbon-13 [13C]	Per mille (0/00)	OSD
38	Argon [Ar]	Nanomole per kilogram (nmol/kg)	OSD
39	Neon [Ne]	Nanomole per kilogram (nmol/kg)	OSD
40	Chlorofluorocarbon 11 (CFC 11)	Picomole per kilogram (pmol/kg)	OSD
41	Chlorofluorocarbon 12 (CFC 12)	Picomole per liter (pmol/kg)	OSD
42	Chlorofluorocarbon 113 (CFC113)	Picomole per liter (pmol/kg)	OSD
43	Delta Oxygen-18 [18O]	Per mille (0/00)	OSD

Notes:
1	Beam Attenuation Coefficient
2	Julian year-day is the decimal day for the year in which the observations were made (see Section I. F7)
3	Codes: 30; 31; and 32 (latitude; longitude; and Julian year-day respectively) are not depth-dependent variables and are not in WODselect.