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  PI:                 Dennis Hansell
  dataset:            Total organic carbon profile data
  project/cruise:     Arabian Sea/TTN-053 - Process Cruise 6
  ship:               Thomas Thompson
  
  at sea analysts:    Dennis Hansell (BBSR) and Rachel Parsons (BBSR) 
  Laboratory analyst: Rachel Parsons (BBSR)

  Methods reported in:

  Hansell, D.A., C.A. Carlson, N. Bates and A. Poisson.  Horizontal and
  vertical removal of organic carbon in the equatorial Pacific Ocean: a mass
  balance assessment.  Deep-Sea Research II (in press).

  The EqPac methods were followed explicity on the Arabian Sea Process cruises
  with two exceptions:

      1. For Process cruises 1, 2 and 4, the WHOI custom built HTC/DI-TOC
         analyzer was used.  For Process cruises 6 and 7, the BBSR custom
         built HTC/DI-TOC analyzer was used.

      2. Low carbon water (LCW) prepared using a commercial Milli-Q UV/TOC (R)
         system was used to measure the instrument blank as opposed to the
         carbon free distilled water (CFDW) that was used in EqPac.  For all
         legs, the LCW was assigned a background TOC value of 0 micromoles C.


 Parameter  Description                                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
 lat        latitude (minus = South)                   decimal degrees
 lon        longitude (minus = West)                   decimal degrees
 bot        CTD rosette bottle number
 depth      sample depth (calculated from pressure)    meters
 TOC        total organic carbon                       micromoles C/liter
 TOC_kg     total organic carbon                       micromoles C/kilogram