tco2_pco2

 PI:              Taro Takahashi
 of:              Lamont Doherty Earth Observatory
 dataset:         Total carbon dioxide and pCO2 from CTD casts
 project/cruise:  AESOPS/NBP97-8 - Ross Sea Process 4 Cruise
 ship:            Nathaniel B. Palmer

 Methodology,
 including a figure illustrating the analyses of certified reference materials.

 Parameter    Description                              Units

 event        event number from event log
 sta          station number from event log
 cast         cast number from event log
 bot          CTD rosette bottle number
 depth_n      nominal depth of sample                  meters
 TCO2         total CO2 in seawater                    micromoles C/kilogram
 TCO2_crm     total CO2 adjusted by offset             micromoles C/kilogram
                to CRM values
 pCO2_4       partial pressure of CO2 in seawater      microatmospheres
                at 4 degrees Celsius
 pCO2_temp    temperature at which pCO2 was measured   degrees Celsius
 nd           no / bad data