O2_production

 PI:              Michael Bender and Mary-Lynn Dickson 
 of:              University of Rhode Island 
 dataset:         Gross and net Oxygen production rates 
 project/cruise:  AESOPS/NBP-96-4A - Ross Sea Process 1 Cruise
 ship:            Nathaniel B. Palmer

 PI-Notes on Methodology: 

 Parameter      Description                           Units

 event           event number, from event log
 sta_name        unique station identifier
 sta             station number, from event log
 cast            cast number, from event log
 cast_type       TM=trace metal rosette
                      CTD=ctd rosette
 bot             rosette bottle number
 depth_n         nominal sample depth                  meters
 o2_gross        gross oxygen production               micromoles/liter/day
 o2_gross_err    standard error for gross O2
                   production
 o2_net          net oxygen production                 micromoles/liter/day
 o2_net_err      standard error for net O2
                   production
 nd              missing or bad data