TMctd

 PI:              John Morrison
 of:              North Carolina State University
 dataset:         Processed CTD data from TM casts
 project/cruise:  AESOPS/KIWI09 - APFZ Process Cruise 2
 ship:            Roger Revelle

 Sampling Methodology

 Beware! PI-Note  All of the casts made with the TM Rosette CTD were mostly
      within the high salinity gradient surface region.  Because of the
      slow time constant response of the SeaCat CTD, the conductivity
      data are quite noisy.  No effort has been made to clean up this
      data as it would basically have made the profile worthless. Therefore,
      the TM Rosette CTD data reported here has been calibrated for
      conductivity difference between the bottles, but otherwise are "raw"
      data which might be at least of some use in identifying the
      conductivity(salinity) gradients in the upper layer.

 AESOPS Investigators, Please note:
  Begin and end parameters for time, latitude and longitude are
  provided in the core CTD and Bottle data.  Investigators  
  submitting data related to CTD/Bottle casts are urged to use 
  the single lat/lon entry from the Chief Scientist's event log.

 Parameter     Description                                  Units

 event         event number from event log
 sta           station number from event log
 cast          CTD rosette cast number from event log
 date          date (YYYYMMDD) decoded as follows
                 YYYY = year, MM = month, DD = day
                 Date converted to GMT.
 time_begin    starting time of cast in UTC                 decimal hours
 time_end      ending time of cast in UTC                   decimal hours
 lat_begin     starting latitude of cast, negative = south  decimal degrees
 lon_begin     starting longitude of cast, negative = west  decimal degrees
 lat_end       ending latitude of cast                      decimal degrees
 lon_end       ending longitude of cast                     decimal degrees
 depth         depth of sample                              meters
 press         depth of sample reported as pressure         decibars
 temp          temperature                                  degrees C
 cond          conductivity CTD                             millimohs
 sal           salinity
 potemp        potental temperture                          degrees C
 sigma_t       sigma t                                      kilograms/meter^3
 sigma_0       potental density                             kilograms/meter^3
 O2_1          oxygen                                       milliters/liter
 O2_2          oxygen                                       micromoles/kilogram
 O2_3          oxygen                                       micromoles/liter
 nd            no/bad data