Parameter: Fm_D2

Dataset: 
Series 3B: A-pulse computed photochemical measurements
Parameter: 
fluorescence
Master parameters information
Short Name:
 fluor
Short Description:
 fluorescence
Official Name:
 fluorescence
No Data Value:
Description:
 

Fluorescence. Indirect measure of pigment concentration.

Units and collection method may vary. Units often reported in milligrams/meter^3 (mg/m3) or micromoles per liter (ug/L). Sometimes reported after being calibrated against extracted pigment concentrations.

In JGOFS/GLOBEC projects fluorescence is measured from CTD instrument sensor.

Dataset-parameters information
Supplied Name: 
Fm_D2
Supplied Units: 
RFU (Relative Fluorscence Units)
Conversion Necessary: 
no
Conversion Utility: 
No Data Value: 
nd
Description: 
The second measurement of the maximum fluorescence after another 26 seconds into the dark or recovery phase (D2 indicates the second measurement in the "dark" phase)