Data dictionary for OceansAlaska Shellfish Hatchery data files submitted to SOCAT

(1) Yearday: numeral day of the year 

(2) Year: calendar year 

(3) Matlab Serial Date Number (days since Jan 1 0000): serial date number in Matlab format

(4) Excel Serial Date Number (days since Jan 1 1990): serial date number in Excel format 

(5) TSG-T (deg C): SBE 45 TSG seawater temperature in degrees C	 

(6) TSG-S (PSS-78): SBE 45 TSG seawater salinity in Practical Salinity Units 

(7) corrected xCO2 (ppm): corrected SW CO2 mole fractions in wet air (ppm)	 

(8) equilibrator pressure (kPa): total pressure of equilibration (equilibrator differential pressure + LI840 cell pressure; kPa)

(9) SWpCO2@TSG_T (uatm): Seawater pCO2 at TSG temperature (uatm)

(10) SWfCO2@TSG_T (uatm): Seawater fCO2 at TSG temperature (uatm)

(11) SAMI_T (deg C): intake temperature measured by the SAMI-Alk deployed on the intake

(12) SAMI_Alk (umol/kg): alkalinity measured by the SAMI-Alk deployed on the intake

(13) SST: sea surface temperature determined as the TSG-T minus the mean delta-T between the TSG and SAMI-Alk temperatures

(14) SWpCO2@SST (uatm): SW CO2 partial pressure in wet air (uatm)

(15) SWfCO2@SST (uatm): SW CO2 fugacity in wet air (uatm) 

(16) TA (umol/kg; from Evans et al., 2015 relationship) 

(17) TCO2 (umol/kg; Waters et al constants) 

(18) pH_T (total scale; Waters et al constants) 

(19) Omega_arag (Waters et al constants) 

(20) Omega_calc (Waters et al constants) 

(21) Revelle factor (Waters et al constants)

(22) Date and Time: in GMT yyyy-mm-dd hh:mm:ss

(23) Latitude (deg N): degrees north

(24) Longitude (deg W): degrees west