trace_Fe_Al

 PI:              Christopher Measures
 of:              University of Hawaii
 dataset:         Dissolved iron and aluminum concentrations
                            from CTD casts
 project/cruise:  Arabian Sea/TTN-045 - Process Cruise 2   
 ship:            Thomas Thompson
 
  PI Notes and Methodology 
 
 Parameter     Description                                   Units

 event         event number from event log 
 sta           station number from event log 
 sta_std       Arabian Sea standard station identifier
 cast          cast number from event log 
 bot           CTD rosette bottle number
 press         sample depth reported as pressure             decibars
 Fe_unfilt     iron concentration, unfiltered                nanomoles/liter
 Al_unfilt     aluminum concentration, unfiltered            nanomoles/liter
 AlFe_filt_sz  non-zero indicates filter size                microns