@article{fdi:010073601,
  title = {{I}nfluence of tropical instability waves on phytoplankton biomass near the {M}arquesas {I}slands},
  author = {{M}artinez, {E}lodie and {R}aapoto, {H}. and {M}aes, {C}hristophe and {M}aamaatuaihutapu, {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {M}arquesas form an isolated group of small islands in the {C}entral {S}outh {P}acific where quasi-permanent biological activity is observed. {D}uring {L}a {N}ina events, this biological activity, shown by a net increase of chlorophyll-a concentration ({C}hl, a proxy of phytoplankton biomass), is particularly strong. {I}t has been hypothesized that this strong activity is due to iron-rich waters advected from the equatorial region to the {M}arquesas by tropical instability waves ({TIW}s). {H}ere we investigate this hypothesis over 18 years by combining satellite observations, re-analyses of ocean data, and {L}agrangian diagnostics. {F}our {L}a {N}ina events ranging from moderate to strong intensity occurred during this period, and our results show that the {C}hl plume within the archipelago can be indeed influenced by such equatorial advection, but this was observed during the strong 1998 and 2010 {L}a {N}ina conditions only. {C}hl spatio-temporal patterns during the occurrence of other {TIW}s rather suggest the interaction of large-scale forcing events such as an uplift of the thermocline or the enhancement of coastal upwelling induced by the tropical strengthening of the trades with the islands leading to enhancement of phytoplankton biomass within the surface waters. {O}verall, whatever the conditions, our analyses suggest that the influence of the {TIW}s is to disperse, stir, and, therefore, modulate the shape of the existing phytoplankton plume.},
  keywords = {tropical instability waves ; {L}a {N}ina ; chlorophyll-a concentration variability ; ocean colour ; island mass effect ; {M}arquesas islands ; oceanography ; satellite observations ; {PACIFIQUE} {SUD} ; {MARQUISES} {ILES} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{R}emote {S}ensing},
  volume = {10},
  numero = {4},
  pages = {art. 640 [12 p.]},
  ISSN = {2072-4292},
  year = {2018},
  DOI = {10.3390/rs10040640},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073601},
}