FRRFluorometry

 PI:              Rob Olson and Heidi Sosik
 of:              Woods Hole Oceanographic Institution
 dataset:         Fast Repetition Rate Fluorometry from CTD casts
 project/cruise:  AESOPS/KIWI9 - APFZ Process 2 cruise
 ship:            Roger Revelle

 Sampling Methodology

 Parameter     Description                                       Units
 
 event         event number from event log
 sta           station number from event log
 cast          cast number from event log
 depth         depth in the water column                         meters
 Fo            initial value of chlorophyll fluorescence         relative
                 yield before light saturation
 Fm            final value of chlorophyll fluorescence yield     relative
                 after saturation of photosynthetic reaction
                 centers
 Fv_Fm_ratio   normalized variable fluorescence, equivalent      dimensionless
                 to (Fm-Fo)/Fm
 sigma_PSII    photosystem II (PSII) functional absorption       angstrom^2
                 cross-section
 tau_PSII      photosystem II turnover time                      microseconds