bottle_merged

  PI:        Jim Murray and Chris Garside 
  dataset:   Merged bottle and nutrient data 
  cruise:    EQPAC/TT007
  ship:      Thomas Thompson 

 PI-Notes on Quality (Murray)
 PI-Notes on Quality Procedure (Garside)
 PI-Notes on NO3 vs. T/S misfits (Garside)
 
 
 Parameter      Description                              Units

 event          event/operation number from event log
 sta            station number of CTD and bottle cast 
 cast           cast number of CTD bottle cast event
 lat            latitude (negative for south)            decimal degrees
 lon            longitude (negative for west)            decimal degrees
 year_date      date as a decimal year
 q_code         set by J. Murray, x identifies problems
                  with the data quality reported at that
                  level(mis-trips, suspect salinity, etc)
                  See 'PI-Notes on Quality' link.
 bot            ctd rosette bottle number
 depth          sample depth reported as meters          meters
 press          sample depth reported as pressure        decibars
 temp_ctd       ctd temperature                          deg C
 sal_ctd        ctd salinity                             ppt
 sigma_t_ctd    ctd sigma-t
 potemp_ctd     ctd potental temperature                 deg C
 sigma_0_ctd    ctd potental density                     kg/m^3
 O2_bot         dissolved oxygen (Winkler)               ml/l
 sal_bot        bottle salinity                          ppt
 NH4            ammonium                                 umols/l
 NO3            nitrate                                  umols/l
 NO2            nitrite                                  umols/l
 PO4            phosphate                                umols/l
 SiO4           silicate                                 umols/l
 urea           urea                                     umols/l
 chl_a          chlorophyll-a                            ug/l
 phaeo          total phaeopigments                      ug/l
 Fo_to_Fa       ratio of fluorometer reading before
                 acidification (Fo) to fluorometer
                 reading after acidification (Fa)
 temp_draw      temperature of the seawater drawn from   deg C
                 each Niskin (used to convert O2_bot to
                 O2 in umol/kg)
 O2             dissolved oxygen concentration of        umols O2/kg
                   seawater
 
 nd indicates missing or bad data