toc

 PI:               Hugh Ducklow  
 dataset:          Particulate carbon & nitrogen & total organic carbon
 project/cruise:   EQPAC/TT012
 ship:             Thomas Thompson

 Methodology:  U.S. JGOFS Equatorial Pacific Process Study 
               Sampling and Analytical Protocols (section 18)

 Reference:  Carlson, C.A. and H.W. Ducklow, 1995.  Dissolved organic carbon 
             in the upper ocean of the central equatorial Pacific Ocean, 1992:  
	     Daily and finescale vertical variations.  
	     Deep-Sea Research II, vol 42, No. 2-3, pp 639-656.


  Parameter      Description                      Units
  
  sta       station number per event log
  cast      CTD cast number per event number
  bot       CTD rosette bottle number
  event     event/operation number per event log
  depth_n   nominal depth of sample               meters
  TPC       total particulate carbon              micromoles/liter
  PON       particulate organic nitrogen          micromoles/liter
  TOC       total organic carbon                  micromoles/liter