@article{fdi:010072739, title = {{A} new coupled ocean-waves-atmosphere model designed for tropical storm studies : example of tropical cyclone {B}ejisa (2013-2014) in the {S}outh-{W}est {I}ndian {O}cean}, author = {{P}ianezze, {J}. and {B}arthe, {C}. and {B}ielli, {S}. and {T}ulet, {P}. and {J}ullien, {S}. and {C}ambon, {G}ildas and {B}ousquet, {O}. and {C}laeys, {M}. and {C}ordier, {E}.}, editor = {}, language = {{ENG}}, abstract = {{O}cean-{W}aves-{A}tmosphere ({OWA}) exchanges are not well represented in current {N}umerical {W}eather {P}rediction ({NWP}) systems, which can lead to large uncertainties in tropical cyclone track and intensity forecasts. {I}n order to explore and better understand the impact of {OWA} interactions on tropical cyclone modeling, a fully coupled {OWA} system based on the atmospheric model {M}eso-{NH}, the oceanic model {CROCO}, and the wave model {WW}3 and called {MSWC} was designed and applied to the case of tropical cyclone {B}ejisa (2013-2014). {T}he fully coupled {OWA} simulation shows good agreement with the literature and available observations. {I}n particular, simulated significant wave height is within 30 cm of measurements made with buoys and altimeters. {S}hort-term (< 2 days) sensitivity experiments used to highlight the effect of oceanic waves coupling show limited impact on the track, the intensity evolution, and the turbulent surface fluxes of the tropical cyclone. {H}owever, it is also shown that using a fully coupled {OWA} system is essential to obtain consistent sea salt emissions. {S}patial and temporal coherence of the sea state with the 10 m wind speed are necessary to produce sea salt aerosol emissions in the right place (in the eyewall of the tropical cyclone) and with the right size distribution, which is critical for cloud microphysics.}, keywords = {{OCEAN} {INDIEN} {SUD} {OUEST}}, booktitle = {}, journal = {{J}ournal of {A}dvances in {M}odeling {E}arth {S}ystems}, volume = {10}, numero = {3}, pages = {801--825}, ISSN = {1942-2466}, year = {2018}, DOI = {10.1002/2017ms001177}, URL = {https://www.documentation.ird.fr/hor/fdi:010072739}, }