bottle

  PI:              Peter Brewer, Hugh Ducklow, James McCarthy, Taro Takahashi,
                            Robert Williams
  dataset:         Basic hydrographic, nutrient and Carbon/Nitrogen chemistries                     
  project/cruise:  North Atlantic Bloom Experiment/119, legs 4-5, Apr-June 89  
  ship:            R/V Atlantis II

  Methodology:
  Niskin/Rosette cast procedure (Williams)  
  Pressure, temperature, salinity, oxygen, nutrients (Williams)
  Ammonium (McCarthy)
  Particulate organic carbon and particulate nitrogen (Ducklow)
  Total carbon dioxide (CO2) and total alkalinity (Brewer)
  Partial pressure of CO2, total CO2 and total alkalinity (Takahashi)
  References


  Note:  DOC measurements were removed from this data by the data
  manager, at the request of Peltzer and Suzuki.  Please see note from
  Edward Peltzer on DOC problems.


  Parameters  Descriptions                                Units

  year        year (as YYYY)                              dimensionless
  event       event number from event log                 dimensionless
  sta         station number from event log               dimensionless
  cast        cast number from event log                  dimensionless
  bot         bottle number                               dimensionless
  press       depth reported as pressure                  decibars
  depth       depth reported in meters                    meters
  temp        temperature of water (IPTS-68)              degrees C
  potemp      potential temperature as calculated by      degrees C
              Williams
  sal_bot     bottle salinity (Autosal; PPS-78)           dimensionless 
  sigma_t     sigma-t as calculated by Williams           kilogram/meter^3
  O2_ml_L     oxygen by Williams                          milliliter/liter
  NO3         nitrate by Williams                         micromoles/liter
  NO2         nitrite by Williams                         micromoles/liter
  PO4         phosphate by Williams                       micromoles/liter
  SiO4        silicate by Williams                        micromoles/liter
  NH4_orig    ammonium as originally received from        nanomoles/liter
              McCarthy
  NH4         ammonium from McCarthy, units converted     micromoles/liter     
              by JGOFS Data Management Office                           
  TPC         total particulate carbon by Ducklow         micromoles/liter
  PON         particulate organic nitrogen by Ducklow     micromoles/liter
  TALK_b      total alkalinity by Brewer                  micromoles/kilogram
  TCO2_b      total carbon dioxide by Brewer              micromoles/kilogram
  TCO2_t      total carbon dioxide by Takahashi           micromoles/kilogram
  pCO2_20     partial pressure of CO2 at 20 degrees C     microatmospheres
              by Takahashi
  TALK_t      total alkalinity calculated by Takahashi    micromoles/kilogram