chlTM

 PI:             Jan Newton/James Murray
 dataset:        TM cast Fluorometric chlorophyll a and total phaeopigment
 project/cruise: EQPAC/TT007
 ship:           R/V Thomas Thompson

 PI note:  Due to chlorophyll degradation by the acetone (reagent grade, in
           cans) the data for the following Station/TM casts have been deleted from the
           file:  2/5, 2/6, and 3/3.

           For cruise TT007, TM casts were numbered consectively within Station
           and as a result the cast number is not unique for the cruise.  When
           comparing with other data sets be sure the station/cast numbers agree.


 Parameter       Description                                   Units 

 event           event/operation number from event log
 sta             station number from event log
 cast            TM cast number from event log
 comment         free text quality statement 
 bot             TM rosette bottle number
 depth_n         nominal sample depth based on wire out        meters
 fluor_vol_filt  volume of sample filtered                     liters
 scale           sensitivity scale on the fluorometer
 df              door factor; true value of sensitivity scale
 B               nd
 Fo              original fluorometer reading
 Fa              fluorometer reading after 2 drops 1N HCL
 chl_a_fluor     chlorophyll a; fluorometric method            micrograms/liter
 phaeo           total phaeopigment                            micrograms/liter
 Fo_to_Fa        Fo/Fa ratio; ranges between:
                    max. 2.10, meaning all chlorophyll-a and no Phaeopigment
                    min. 1.00, meaning no chlorophyll-a and all Phaeopigment