Table 5. Description of in-situ fluorescing dissolved organic matter (FDOM) fluorometers sensors deployed in the Clackamas River basin, Oregon, April 2010–September 2011.


[Excitation-emission wavelengths (± bandpass values) given in nanometers as full width half maximum. Abbreviation: FI, Fluorescence Index]


Sensor	Excitation	Emission	Primary fluorescence peak1	Abbreviation
WETLabs™ WETStar Fluorometer2	370 (±10)	460 (±120)	Peak C	WETStar
Turner™ Cyclops-7 Fluorometer3	365 (±60)	470 (±30)	Peak C	Standard FDOM
Turner™ Cyclops-7 Custom Fluorometer #13	370 (±20)	470 (±20)	Peak C	FI-A
Turner™ Cyclops-7 Custom Fluorometer #23	370 (±20)	520 (±20)	Peak C	FI-B
Turner™ Cyclops-7 Custom Fluorometer #33	270 (±12)4	340 (±20)	Peak T	Peak T

¹Fluorescence peaks as commonly defined in the literature (Coble, 2007, for example).


²Sensor deployed April 01, 2010, to October 20, 2011.


³Sensor deployed April 14, 2011, to January 31, 2012.


⁴There is no optical filter on the deep ultraviolet light-emitting diode light source.

First posted February 11, 2013