pitdata

  PI:              John Martin
  of:              Moss Landing Marine Laboratory
  dataset:         Particle interceptor Sediment Trap Data
  project/cruise:  North Atlantic Bloom Experiment/119, leg 4, Apr-May, 1989
  ship:            R/V Atlantis II
   
  Sampling methodology and analytical procedures:
  Martin, J.M., S.F. Fitzwater, R.M. Gordon, C.N. Hunter, S.J. Tanner, 1993.
  Iron, primary production and carbon-nitrogen flux studies during the JGOFS
  North Atlantic Bloom Experiment.  Deep-Sea Research II, Vol. 40, No. 1/2,
  pp. 115-134.

  ARGOS positions of MLML particle traps


  Parameter   Description                         Units

  trap        identifer for trap deployment       dimensionless
  event       event number from event log         MMDDhhmm
                composite of month, day, 
		hour, minutes
  lat_n       nominal latitude of trap during     decimal degrees
                 deployment, (negative = south)
  lon_n       nominal longitude of trap during    decimal degrees
                 deployment, (negative = west) 
  days_set    number of days trap deployed        decimal days
  depth       depth of trap                       meters
  p_f_tot     total particulate flux              milligrams/meter^2/day
  CaCO3_f     Calcium Carbonate particulate flux  milligrams/meter^2/day 
  C_f_tot     total Carbon particulate flux       millimoles/meter^2/day 
  pic_f       particulate inorganic Carbon flux   millimoles/meter^2/day  
  poc_f       particulate organic Carbon flux     millimoles/meter^2/day  
  pon_f       particulate organic Nitrogen flux   millimoles/meter^2/day