TOC

 PI:          Catherine Goyet (WHOI) & Edward Peltzer (MBARI)
 of:          Woods Hole Oceanographic Institution & Monterey Bay Aquarium Research Institute
 dataset:     Total organic carbon from CTD casts
 project/cruise:  AESOPS/RR_KIWI8 - APFZ Survey II Cruise
 ship:        R/V Roger Revelle

 at sea analysts:    Greg Eischeid (WHOI).

 Methods reported in:
 Peltzer, Edward T. (1993).  Shipboard determination of total organic carbon by
   a high temperature combustion/direct injection technique.  U.S. Joint Global 
   Ocean Flux Study - [Equatorial Pacific Protocols, 1993, section 21A].
 
 Alternatively, see:  Chapter 16 of the JGOFS Data Protocols.  Determination
   of Dissolved Organic Carbon by a High Temperature Combustion/Direct Injection
   Technique.  [JGOFS Report Nr. 19].

 The EqPac methods were followed explicity on the APFZ Survey I cruise
   with three exceptions:
 
  1.  Low carbon water (LCW) prepared onboard ship using a commercial NanoPure (R)
      UV/TOC system was used to measure the instrument blank as opposed to the
      carbon free distilled water (CFDW) that was used in EqPac.
 
  2.  The LCW prepared onboard was checked against LCW prepared at WHOI using a
      Milli-Q UV/TOC (R) system and shipped to New Zealand in glass bottles.  This
      water was assigned a background TOC concentration of zero.
 
  3.  Arabian sea deep water was used to prepare the daily calibration standards.
      This water has a background TOC concentration of 42.3 uMC.



 Parameter    Description                             Units

 event        event number, from event log
 sta          Station number, from event log
 cast         CTD cast number, from event log
 bot          CTD rosette bottle number
 depth_n      nominal or target sample depth          meters
 TOC          total organic carbon                    micromoles C/liter
 TOC_kg       total organic carbon                    micromoles C/kilogram