@article{fdi:010070339,
  title = {{O}ptical properties of chromophoric dissolved organic matter during a phytoplankton bloom. {I}mplication for {DOC} estimates from {CDOM} absorption},
  author = {{D}anhiez, {F}. {P}. and {V}antrepotte, {V}. and {C}auvin, {A}. and {L}ebourg, {E}. and {L}oisel, {H}ubert},
  editor = {},
  language = {{ENG}},
  abstract = {{C}oastal waters of the {E}nglish {C}hannel and the {N}orth {S}ea are affected by a massive spring phytoplankton bloom event of the prymnesiophyte {P}haeocystis globosa every year. {T}he impact of this bloom on {DOM} dynamics in coastal waters of the western {E}nglish {C}hannel was investigated through a 45 d long mesocosm experiment and field survey (2012-2014). {O}ur results highlight that, over short time scales, marine production of {DOM} mostly affects {CDOM} absorption properties in the {UV} domain. {S}pecifically, it has been evidenced that the a(cdom) spectral slope between 320 nm and 412 nm ({S}320-412) can be used as a relevant indicator of the {DOM} marine origin. {T}he presence of a strong linear relationship between {S}320-412 and the {DOC} specific absorption coefficient in phytoplankton bloom conditions reveals that this optical parameter provides complementary information to those obtained from the spectral slope between 275 nm and 295 nm, {S}275-295 which has been recently described as a relevant tracer of the terrestrial {DOM} and a good descriptor of the specific absorption coefficient of dissolved organic carbon variability in the confining river-influenced ocean margins. {T}his study has further demonstrated that the joint use of {S}275-295 and {S}320-412 significantly improves the estimation {DOC}-specific absorption coefficient in the presence of varying contribution of marine and terrestrial {DOM}. {W}hile such bands are still not available on ocean color sensors, this methodology represents a valuable tool for estimating {DOC} concentration from {CDOM} absorption measurements from in situ data obtained from classical discrete measurements or from autonomous platforms equipped with adapted spectrophotometer.},
  keywords = {{MANCHE} ; {FRANCE}},
  booktitle = {},
  journal = {{L}imnology and {O}ceanography},
  volume = {62},
  numero = {4},
  pages = {1409--1425},
  ISSN = {0024-3590},
  year = {2017},
  DOI = {10.1002/lno.10507},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070339},
}