TMbottle

 PI:              Louis Codispoti
 of:              Old Dominion University
 dataset:         Salinity and nutrients from TM cast bottles
 project/cruise:  AESOPS/KIWI07 - APFZ Process Cruise 1
 ship:            Roger Revelle

 Sampling Methodology

 Please note: The trace metal clean rosette on this leg was equipped with 6,
              30-l Go-Flo bottles and did NOT include a CTD.  It was a temporary
              replacement for the 8-bottle, CTD equipped system that was lost on
              13 November 1997. Thus, no CTD pressure, temperature or salinity
              were collected with the TM bottle casts, and the depth is only the
              nominal sample depth based on meter wheel readings.

 Parameter     Description                                  Units

 event         event number from event log
 sta           station number from event log
 cast          TM rosette cast number from event log
 date          date (YYYYMMDD) decoded as follows
                   YYYY = year, MM = month,
                   DD = day. Date converted to GMT.
 time          time of cast in UTC                          decimal hours
 lat           latitude of cast, negative = south           decimal degrees
 lon           longitude of cast, negative = west           decimal degrees
 bot           TM rosette bottle sequence number
 depth_n       nominal sample depth                         meters
 sal_bot       bottle salinity (Autosal; PSU)               dimensionless
 O2_ml_L       oxygen (winkler)                             milliliters/liter
 O2_umol_kg    oxygen (winkler)                             micromoles/kilogram
 O2_umol_L     oxygen (winkler)                             micromoles/liter
 NO3           nitrate                                      micromoles/liter
 PO4           phosphate                                    micromoles/liter
 SiO4          silicate                                     micromoles/liter
 NO2           nitrite                                      micromoles/liter
 NH4           ammonium                                     micromoles/liter
 nd            no/bad data