@article{fdi:010076484,
  title = {{M}ajor impact of dust deposition on the productivity of the {A}rabian {S}ea},
  author = {{G}uieu, {C}. and {A}l {A}zhar, {M}. and {A}umont, {O}livier and {M}ahowald, {N}. and {L}evy, {M}arina and {E}the, {C}. and {L}achkar, {Z}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the {A}rabian {S}ea ({AS}), spatiotemporal nutrient limitation patterns of primary production and the possible role of nutrient inputs from the atmosphere are still not well understood. {U}sing a biogeochemical model forced by modeled aerosol deposition, we show that without high atmospheric iron inputs through dust deposition during the summer monsoon, primary production over the {AS} would be reduced by half. {A}tmospheric iron deposition also supports most of the nitrogen fixation over the {AS}. {H}owever, our ocean biogeochemistry modeling results suggest that dinitrogen fixation constitutes a negligible fraction of the primary production. {F}inally, we show that atmospheric inputs of nitrogen, mostly from anthropogenic activities in {I}ndia, have a negligible impact on primary production. {P}lain-{L}anguage summary {P}hytoplankton are microscopic organisms that live in watery environments such as the ocean. {L}ike land plants, phytoplankton need nutrients to survive, develop, and reproduce. {I}n the surface ocean, nutrients come from one of several pathways: from the depths of the ocean, from the rivers, and from the atmosphere. {I}n the {A}rabian {S}ea, there are two important sources of nutrients for the organisms living in the surface layer of the ocean: the nutrient-rich waters coming from below, which occurs along the coast of the {A}rabian {P}eninsula, and the desert dust deposited from above. {I}n this study, we show that neither source brings all the necessary nutrients nor brings enough nutrients. {B}oth of these types of inputs are required to understand the distribution of the phytoplankton. {I}f there was no dust deposition in the {A}rabian {S}ea, these organisms that represent the first link in the ocean food chain would be half as abundant as they are currently.},
  keywords = {marine biogeochemistry ; atmospheric deposition ; dinitrogen fixation ; {A}rabian {S}ea ; biogeochemistry model ; atmospheric iron ; {ARABIE} {MER}},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {46},
  numero = {12},
  pages = {6736--6744},
  ISSN = {0094-8276},
  year = {2019},
  DOI = {10.1029/2019gl082770},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076484},
}