aerosols_short

  PI:              Neil Tindale
  dataset:         Aerosols, short irradiation neutron activation analysis
  project:         Arabian Sea
  ship:            Thomas Thompson
 
 PI Notes and Methodology
 A note from DMO on supplementary fields
 HiVol pump sampler methods are described in: N. W. Tindale and P. P. Pease, Aerosols 
    over the Arabian Sea: Atmospheric transport pathways and concentrations of dust 
    and sea salt, Deep Sea Research Part II: Topical Studies in OceanographyVolume 46, 
    Issues 8-9, August 1999, Pages 1577-1595. ( view article at ScienceDirect )
    view abstracts 


N.W. Tindale & P.P. Pease 

 Parameter     Description                                      Units

 cruise        Arabian Sea, Thomas Thompson cruise identifier
 date_begin    date sampling pump turned on for given sample    YYYYMMDD
 date_end      date sampling pump turned off for given sample   YYYYMMDD
 yrday         day of year, 1995
 lat_n         Nominal latitude (minus indicates South)         decimal degrees
 lon_n         Nominal longitude (minus indicates West)         decimal degrees
 vol_pump      volume of air pumped to accumulate sample        cubic meter

 for each element below, also reported are:
 _err which indicates combined sampling and analytical error
 _dl indicating detection level, a '1' indicates that while a peak was detected,   
                 the isotope sample was below the level of detection relative
                 to background "noise".  The element concentration reported
                 therefore represents the amount of the isotope which would
                 have had to have been present for it to have been detected.

 Al            concentration of Aluminum                         ug/m^3
 Ca            concentration of Calcium                          ug/m^3
 Mg            concentration of Magnesium                        ug/m^3
 Mn            concentration of Manganese                        ug/m^3
 Na            concentration of Sodium                           ug/m^3
 Si            concentration of Silicon                          ug/m^3
 Ti            concentration of Titanium                         ug/m^3
 V             concentration of Vanadium                         ug/m^3
 dust          total sample mass                                 ug/m^3
                 estimated by assuming the Al content represented
                 8 percent, based on an 8% crustal average for Al

 nd indicates no data