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Temperature quenching of CDOM fluorescence sensors: temporal and spatial variability in the temperature response and a recommended temperature correction equation
Author(s) -
Ryder Elizabeth,
Jennings Eleanor,
de Eyto Elvira,
Dillane Mary,
NicAonghusa Caitriona,
Pierson Donald C.,
Moore Karen,
Rouen Martin,
Poole Russell
Publication year - 2012
Publication title -
limnology and oceanography: methods
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.898
H-Index - 72
ISSN - 1541-5856
DOI - 10.4319/lom.2012.10.1004
Subject(s) - colored dissolved organic matter , diel vertical migration , dissolved organic carbon , environmental science , quenching (fluorescence) , fluorescence , atmospheric sciences , chemistry , environmental chemistry , oceanography , geology , phytoplankton , physics , optics , organic chemistry , nutrient
Field‐based instruments measuring chromophoric dissolved organic matter (CDOM) fluorescence are often used as a proxy for dissolved organic carbon concentrations in lakes and streams. CDOM fluorescence yield is, however, affected by water temperature at the time of measurement, a factor which varies on both diel and seasonal timescales. A temperature correction must therefore be applied to these data. We present data on temporal and site‐specific variability in temperature quenching of CDOM fluorescence for water from a humic lake and one of its main inflows in the west of Ireland. In addition, we present a temperature compensation equation and show that this equation is an improvement on methods previously proposed.