cyan

 PI:             Michael Sieracki
 dataset:        Cyanobacteria, phototrophic and heterotrophic pico-nanoplankton
 project/cruise: EQPAC/TT011
 ship:           Thomas Thompson

 Methodology:  U.S. JGOFS Equatorial Pacific Process Study 
               Sampling and Analytical Protocols (section 23)

 PI-Note:  Biomass is calculated using a constant carbon density factor of 220
           femtograms C per um^3 of biovolume, and is expressed in units of
           micrograms of carbon per liter.
           Biovolume is defined as average cell size.


 Parameter          Description                                    Units

 event              event/operation number from event log
                      composed of elements of date and time.  
                      Date/time decoded as follows (MMDDHHmm):
                      where MM = month, DD = day, HH = hour
                      mm = minutes.  
                      Date time reported in local Hawaii time.
 sta                station number from event log
 cast               CTD cast number from event log
 lat_n              latitude, nominal                              degrees
 bot                CTD rosette bottle number
 depth_n            nominal depth of sample                        meters
 coccus_s_mic       abundance synechococcus-type cyanobacteria     cells/milliliter
 coccus_s_mic_biov  biovolume synechococcus-type cyanobacteria     cubic microns
 coccus_s_mic_C     biomass synechococcus-type cyanobacteria       micrograms C/liter 
 pepnp_mic          abundance of phototrophic eucaryotic pico-     cells/liter
                      and nanoplankton
 pepnp_mic_biov     biovolume phototrophic eucaryotic pico-        cubic microns
                      and nanoplankton
 pepnp_mic_C        biomass phototrophic eucaryotic pico-          micrograms C/liter
                      and nanoplankton
 hepnp_mic          abundance heterotrophic eucayotic pico-        cells/liter
                      and nanoplankton
 hepnp_mic_biov     biovolume heterotrophic eucayotic pico-        cubic microns
                      and nanoplankton
 hepnp_mic_C        biomass heterotrophic eucayotic pico-          micrograms C/liter
                      and nanoplankton