FN Archimer Export Format
PT J
TI Role of Iron in the Marquesas Island Mass Effect
BT 
AF Raapoto, Hirohiti
   Martinez, Elodie
   Petrenko, Anne
   Doglioli, Andrea
   Gorgues, Thomas
   Sauzède, Raphaëlle
   Maamaatuaiahutapu, Keitapu
   Maes, Christophe
   Menkes, Christophe
   Lefèvre, Jérôme
AS 1:1;2:2;3:3;4:3;5:2;6:4;7:5;8:2;9:6;10:6;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 UPF, IRD, ILM, Ifremer, Écosystèmes Insulaires Océaniens Tahiti ,French Polynesia
   Université Brest, Ifremer, CNRS, IRD, Laboratoire d'Océanographie Physique et Spatiale, IUEM Brest ,France
   Aix‐Marseille University, Université de Toulon, CNRS, IRD, OSU PYTHEAS, Mediterranean Institute of Oceanography MIO, UM 110, 13288 Marseille ,France
   Sorbonne Université, CNRS, Institut de la Mer de Villefranche, Laboratoire d'Océanographie de Villefranche Villefranche‐sur‐Mer ,France
   Université de la Polynésie française, GePaSud Laboratory Tahiti ,French Polynesia
   IRD/Sorbonne Universités Nouméa, New Caledonia
C2 IRD, FRANCE
   UBO, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   CNRS, FRANCE
   UNIV POLYNESIE FRANCAISE, FRANCE
   IRD, FRANCE
UM LOPS
   EIO
IN WOS Cotutelle UMR
   copubli-france
   copubli-univ-france
IF 3.559
TC 10
UR https://archimer.ifremer.fr/doc/00592/70397/68481.pdf
LA English
DT Article
CR BIOSOPE
BO L'Atalante
AB A remarkable chlorophyll‐a concentration (Chl, a proxy of phytoplankton biomass) plume can be noticed on remotely sensed ocean color observations at the boundary separating the equatorial mesotrophic from the subtropical oligotrophic waters in the central South Pacific Ocean. This prominent biological feature is known as the island mass effect of the Marquesas archipelago. Waters surrounding these islands present high macronutrient concentrations but an iron depletion. In this study, the origin of Chl enhancement is investigated using a modeling approach. Four simulations based on identical physical and biogeochemical forcings but with different iron sources are conducted and analyzed. Only simulations considering an iron input from the island sediments present similar patterns (despite being too weak) of vertical and horizontal Chl distributions as compared to biogeochemical‐Argo profiling float and satellite observations. In addition, simulations with no other iron input than the boundary forcings reveal the relative importance of remote processes in modulating the seasonal pattern of Chl around the archipelago through horizontal advection of nutrient‐rich waters from the equator toward the archipelago and vertical mixing uplifting deep nutrient‐rich waters toward the upper lit layer. 
PY 2019
PD NOV
SO Journal Of Geophysical Research-oceans
SN 2169-9275
PU American Geophysical Union (AGU)
VL 124
IS 11
UT 000496669500001
BP 7781
EP 7796
DI 10.1029/2019JC015275
ID 70397
ER

EF