poc_pon

  PI:                Hugh Ducklow
  dataset:           Particulate Organic Carbon and Particulate Organic
                                Nitrogen
  project/cruise:    Arabian Sea/TTN-049, Process cruise 4
  ship:              R/V Thomas Thompson

 PI-Notes on Methodology


  Parameters   Descriptions                                Units

  event        event number, from event log
  sta          station number, from event log
  sta_std      Arabian Sea standard station identifier
  cast         CTD cast number, from event log
  bot          CTD rosette bottle number
  press        sample depth reported as pressure           decibars
  POC          Particulate Organic Carbon                  micromoles/liter
  PON          Particulate Organic Nitrogen                micromoles/liter
  C_to_N       Carbon/Nitrogen ratio
  flag         flags to identify suspect values:
               N = Particulate Organic Nitrogen
               C = Particulate Organic Carbon
               C,N = Both Carbon and Nitrogen
               C/N = Carbon:Nitrogen ratio; cannot easily
                     tell which parameter is suspect
 
  nd indicates missing or bad data