optics-4

  PI:             Curtiss Davis
  off:            Jet Propusion Laboratory
  dataset:        Bio Optical Profiler Data
  project/cruise  North Atlantic Bloom Experiment / 119 leg 4
  ship:           R/V Atlantis II
 
  Methodology

 
  Parameter      Description                                      Units

  event          Event number from event log                      MMDDhhmm
  sta            Station number from event log                    dimensionless
  cast           Cast number from event log                       dimensionless
  year           Year, from event log                             YYYY
  mon            Month, from event log                            MM
  day            Day, from event log                              DD
  time           Time, local time, from event log                 hhmm
  lat            Latitude from event log                          decimal degrees
  lon            Longitude from event log                         decimal degrees
  pts_per_meter  number of original points per one meter bin      count
  ed_410         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_441         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_488         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_520         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_550         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_560         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_589         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_633         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_656         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_671         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_683         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_694         downwelling spectral irradiance at depth         uW/cm^2/nm
  ed_710         downwelling spectral irradiance at depth         uW/cm^2/nm
  depth          bin averaged sample depth                        meters
  tilt           instrument tilt (range -45 to 45)                degrees 
  roll           instrument roll (range -45 to 45)                degrees  
  lu_410         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_441         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_488         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_520         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_550         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_633         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_656         upwelling spectral radiance at depth             uW/cm^2/nm/str
  lu_683         upwelling spectral radiance at depth             uW/cm^2/nm/str
  eu_410         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_441         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_488         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_520         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_550         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_589         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_671         upwelling spectral irradiance at depth           uW/cm^2/nm
  eu_694         upwelling spectral irradiance at depth           uW/cm^2/nm
  trans          light transmission from 25 cm transmissometer    % transmission
  fluor          stimulated fluoresence                           floro units 0 to 100
  par            Photosynthetically available radiation at depth  quanta/sec/cm^2
  temp           CTD temperature                                  degrees C
  cond           CTD conductivity                                 mmho/cm
  sal            CTD salinity calculated from conductivity        dimensionless
  sigma          calculated density                               dimensionless
  e_410          spectral irradiance above sea surface            uW/cm^2/nm
  e_520          spectral irradiance above sea surface            uW/cm^2/nm
  e_589          spectral irradiance above sea surface            uW/cm^2/nm
  e_683          spectral irradiance above sea surface            uW/cm^2/nm