manganese

 PI:             Brent Lewis and George Luther
 of:             University of Delaware            
 dataset:        Dissolved manganese concentrations from CTD casts
 project/cruise: Arabian Sea/TTN-045, Process cruise #2
 ship:           R/V Thomas Thompson

Methodology

 Lewis Note regarding 9/98 re-submission of data:
  Data for dissolved and total dissolvable Mn have been corrected to
  account for a prior error in calibration.  Current values have been
  verified by comparison to the NASS-4 SRM and by DDDC/APDC extraction
  with GFAAS analysis.

 Parameters       Descriptions                                 Units

 event            event number from event log 
 sta_std          Arabian Sea standard station identifier
 sta              station number from event log 
 cast             CTD rosette cast number from event log 
 bot              CTD rosette bottle number
 depth_n          nominal depth                                meters
 Mn_diss_lt0d45   dissolved Mn conc. <0.45 microns             nanomoles/liter
 Mn_unfilt        total dissolvable Mn conc. of unfiltered     nanomoles/liter
                  sample (dissolved plus particulate)