@article{fdi:010044055,
  title = {{M}odeling the marine aragonite cycle : changes under rising carbon dioxide and its role in shallow water {C}a{CO}3 dissolution},
  author = {{G}angsto, {R}. and {G}ehlen, {M}. and {S}chneider, {B}. and {B}opp, {L}. and {A}umont, {O}livier and {J}oos, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he marine aragonite cycle has been included in the global biogeochemical model {PISCES} to study the role of aragonite in shallow water {C}a{CO}3 dissolution. {A}ragonite production is parameterized as a function of mesozooplankton biomass and aragonite saturation state of ambient waters. {O}bservation-based estimates of marine carbonate production and dissolution are well reproduced by the model and about 60% of the combined {C}a{CO}3 water column dissolution from aragonite and calcite is simulated above 2000 m. {I}n contrast, a calcite-only version yields a much smaller fraction. {T}his suggests that the aragonite cycle should be included in models for a realistic representation of {C}a{CO}3 dissolution and alkalinity. {F}or the {SRES} {A}2 {CO}2 scenario, production rates of aragonite are projected to notably decrease after 2050. {B}y the end of this century, global aragonite production is reduced by 29% and total {C}a{CO}3 production by 19% relative to preindustrial. {G}eographically, the effect from increasing atmospheric {CO}2, and the subsequent reduction in saturation state, is largest in the subpolar and polar areas where the modeled aragonite production is projected to decrease by 65% until 2100.},
  keywords = {},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {5},
  numero = {4},
  pages = {1057--1072},
  ISSN = {1726-4170},
  year = {2008},
  URL = {https://www.documentation.ird.fr/hor/fdi:010044055},
}