primary_prod-4

  PI:              John Marra, C.A. Knudson, W.S. Chamberlin
  of:              Lamont-Doherty Earth Observatory
  dataset:         Primary Production  (Carbon Assimilation)
  project/cruise:  North Atlantic Bloom Experiment / 119, leg 4 (Apr-May, 1989)
  ship:            R/V  Atlantis II
  
  Sampling methodology and analytical procedures:
  Chipman, D.W., J. Marra, T.Takahashi, 1993.  Primary production at 47N and 20W
  in the North Atlantic Ocean: a comparison between 14C incubation method and the
  mixed layer carbon budget. Deep-Sea Research II, vol. 40, No. 1/2, pp. 151-169


  Parameter   Description                       Units 

  sta         station number from event log     dimensionless
  event       event number from event log       MMDDhhmm
                composite of month, day, 
		hour, minutes
  date        date reported as YYYYMMDD         YYYYMMDD
  depth       sample depth                      meters
  time_inc    incubation time                   hours
  pp          primary productivity              micromoles C/liter/incubation period