@article{fdi:010082279, title = {{A} {NEMO}-based model of {S}argassum distribution in the tropical {A}tlantic : description of the model and sensitivity analysis ({NEMO}-{S}arg1.0)}, author = {{J}ouanno, {J}ulien and {B}enshila, {R}. and {B}erline, {L}. and {S}oulie, {A}. and {R}adenac, {M}arie-{H}{\'e}l{\`e}ne and {M}orvan, {G}uillaume and {D}iaz, {F}. and {S}heinbaum, {J}. and {C}hevalier, {C}rist{\`e}le and {T}hibaut, {T}. and {C}hangeux, {T}homas and {M}{\'e}nard, {F}r{\'e}d{\'e}ric and {B}erthet, {S}. and {A}umont, {O}livier and {E}the, {C}. and {N}abat, {P}. and {M}allet, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he tropical {A}tlantic has been facing a massive proliferation of {S}argassum since 2011, with severe environmental and socioeconomic impacts. {T}he development of large-scale modeling of {S}argassum transport and physiology is essential to clarify the link between {S}argassum distribution and environmental conditions, and to lay the groundwork for a seasonal forecast at the scale of the tropical {A}tlantic basin. {W}e developed a modeling framework based on the {N}ucleus for {E}uropean {M}odelling of the {O}cean ({NEMO}) ocean model, which integrates transport by currents and waves, and physiology of {S}argassum with varying internal nutrients quota, and considers stranding at the coast. {T}he model is initialized from basin-scale satellite observations, and performance was assessed over the year 2017. {M}odel parameters are calibrated through the analysis of a large ensemble of simulations, and the sensitivity to forcing fields like riverine nutrient inputs, atmospheric deposition, and waves is discussed. {O}verall, results demonstrate the ability of the model to reproduce and forecast the seasonal cycle and large-scale distribution of {S}argassum biomass.}, keywords = {{ATLANTIQUE}}, booktitle = {}, journal = {{G}eoscientific {M}odel {D}evelopment}, volume = {14}, numero = {6}, pages = {4069--4086}, ISSN = {1991-959{X}}, year = {2021}, DOI = {10.5194/gmd-14-4069-2021}, URL = {https://www.documentation.ird.fr/hor/fdi:010082279}, }