@article{fdi:010073745,
  title = {{B}io-optical characterization and ocean colour inversion in the {E}astern {L}agoon of {N}ew {C}aledonia, {S}outh {T}ropical {P}acific},
  author = {{F}avareto, {L}. {R}. and {R}udorff, {N}. and {K}ampel, {M}. and {F}rouin, {R}. and {R}ottgers, {R}. and {D}oxaran, {D}. and {M}urakami, {H}. and {D}upouy, {C}{\'e}cile},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {E}astern {L}agoon of {N}ew {C}aledonia ({ELNC}) is a semi-enclosed system surrounded by an extensive coral reef barrier. {T}he system has been suffering impacts from climate variability and anthropogenic activities, including mining exploitation. {S}atellite monitoring is thus an essential tool to detect such changes. {T}he present study aimed to assess the bio-optical variability of the {ELNC} and examine the applicability of ocean colour algorithms, using in situ bio-optical and radiometric data, collected during the {M}arch 2014 {CALIOPE} 2 cruise. {T}he chlorophyll a concentration ({C}hla) varied from 0.13-0.72 mg.m(-3), and the coastal stations were spectrally dominated by non-algal particles ({NAP}) and coloured dissolved organic matter ({CDOM}) (>80% of the total non-water absorption at 443 nm), due to the contribution of allochthonous sources. {T}he phytoplankton specific absorption was generally lower (mean, 0.049 m(2).mg {C}hla(-1)) than typical values observed for the corresponding {C}hla range, as well as the spectral slopes of the absorption of {CDOM} plus {NAP} (a(dg)) (mean, 0.016 nm(-1)) and of the particle backscattering coefficient (b(bp)) (mean, 0.07 nm(-1)). {T}he remote sensing reflectance obtained using two in-water approaches and modelled from {I}nherent {O}ptical {P}roperties ({IOP}s) showed less than 20% relative percent differences ({RPD}). {C}hla estimates were highly biased for the empirical ({OC}4 and {OC}3) and semi-analytical ({GSM}, {QAA}, {GIOP}, {LMI}) algorithms, especially at the coastal stations. {E}xcluding these stations, the {GSM}01 yielded the best retrievals with 35-40% {RPD}. a(dg)(443) was well retrieved by all algorithms with similar to 18% {RPD}, and b(bp)(443) with similar to 40% {RPD}. {T}urbidity algorithms also performed reasonably well (30% {RPD}), showing the capacity and usefulness of the derived products to monitor the water quality of the {ELNC}, provided accurate atmospheric correction of the satellite data. {R}egionally tuned algorithms may potentially improve the {C}hla retrievals, but better parameterization schemes that consider the spatiotemporal variability of the specific {IOP}s are still needed.},
  keywords = {marine remote sensing reflectance ; bio-optical properties ; ocean colour ; algorithms ; eastern lagoon of {N}ew {C}aledonia ; {S}outhwest {T}ropical {P}acific {O}cean ; {NOUVELLE} {CALEDONIE} ; {ZONE} {TROPICALE} ; {PACIFIQUE} {SUD} {OUEST}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {10},
  numero = {7},
  pages = {art. 1043 [30 p.]},
  ISSN = {2072-4292},
  year = {2018},
  DOI = {10.3390/rs10071043},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073745},
}