tco2

 PI:             David Archer
 dataset:        Total carbon dioxide and alkalinity
 project/cruise: EQPAC/TT007
 ship:           R/V Thomas Thompson

 Methodology: 
     David Archer and Taro Takahashi (1993).  
     Protocols for Measurement of pCO, Total CO, and Alkalinity 
     on the Equatorial Pacific JGOFS Survey Cruises
     U.S. Joint Global Ocean Flux Study -
     Equatorial Pacific Protocols, 1993, section 3.


 Parameter    Description                                  Units

 event        event number from event log, composed of 
                date, time decoded as follows (MMDDHHmm)
                minutes.  Date/time reported in local 
                Hawaii time.
 sta          station number from event log
 cast         CTD cast number from event log
 bot          CTD rosette bottle number
 press        depth of sample reported as pressure         decibars
 TCO2         total carbon dioxide                         micromoles/kilogram
 TALK         total alkalinity                             micromoles/kilogram
 pCO2_20      partial pressure of CO2 at 20 degrees C      microatmospheres  
 pCO2_is      in situ partial pressure of CO2              microatmospheres
                calc. from pco2-20