sedtrap_rad

 PI:              Bob Anderson
 of:              Lamont-Doherty Earth Observatory
 dataset:         Radionuclides from moored sediment trap samples
 project/cruise:  AESOPS/Southern Ocean 1996-1997 Mooring Deployment
                  Deployment: NBP 96-5 
	          Recovery: NBP 98-2 Benthic Cruise
 ship:            R/V Nathaniel B. Palmer


 Methodology 


  Parameter         Description                              Units

  mooring           mooring number
  lat               latitude, (negative = South)             decimal degrees
  lon               longitude, (negative = West)             decimal degrees
  depth_ocean       ocean depth                              meters
  depth_trap        depth of sediment trap                   meters
  date_mid          middle of collection period for an       YYYYMMDD
                      individual sample or middle of
                      combined collection period for
                      composite samples
  days_open         number of days trap remained open        days
  cup               cup number(s) from which sample
                      was collected
  pm_f              total particulate matter flux            milligrams/m2/day
                      recovered, time-weighted for 
                      composite samples
  U238_part_lt1mm   uranium-238, particulate < 1mm           dpm/gram
  U238_err          uranium-238 error                        dpm/gram
  Pb210_part_lt1mm  lead-210, particulate < 1mm              dpm/gram
  Pb210_err         lead-210 error                           dpm/gram
  Th232_part_lt1mm  thorium-232, particulate < 1mm           dpm/gram
  Th232_err         thorium-232 error                        dpm/gram
  Th230_part_lt1mm  thorium-230, particulate < 1mm           dpm/gram
  Th230_err         thorium-230 error                        dpm/gram
  Pa231_part_lt1mm  protactinium-231, particulate < 1mm      dpm/gram
  Pa231_err         protactinium-231 error                   dpm/gram
  Be10_part_lt1mm   beryllium-10, particulate < 1mm          atoms/gram
  Be10_err          beryllium-10 error                       atoms/gram