@article{fdi:010077431, title = {{I}ron supply pathways between the surface and subsurface waters of the {S}outhern {O}cean : from winter entrainment to summer storms}, author = {{N}icholson, {S}. {A}. and {L}evy, {M}arina and {J}ouanno, {J}ulien and {C}apet, {X}avier and {S}wart, {S}. and {M}onteiro, {P}. {M}. {S}.}, editor = {}, language = {{ENG}}, abstract = {{D}issolved iron ({DF}e) plays an immeasurable role in shaping the biogeochemical processes of the open-ocean {S}outhern {O}cean. {H}owever, due to observational constraints iron supply pathways remain poorly understood. {U}sing an idealized eddy-resolving physical-biogeochemical model representing a turbulent sector of the {S}outhern {O}cean with seasonal buoyancy forcing and zonal winds overlaid by storms, we quantify the importance of a range of subsurface and surface iron supply mechanisms. {T}he main physical supply pathways to the surface layer are via eddy advection and winter convective mixing in equal proportions. {T}he associated subsurface loss of {DF}e is restocked via net remineralization (75%) and eddy advection (25%). {S}ummer storms resulted in weak {DF}e supplies relative to the seasonal supplies (<7.6%). {H}owever, in situations of deep summer mixed layers and when interacting with underlying ocean fronts, summer storms resulted in enhanced diffusive and advective {DF}e supplies and raised summer primary production by 20% for several days.}, keywords = {storms ; seasonal iron supply ; winter entrainment ; eddy advection ; fronts ; {S}outhern {O}cean ; {OCEAN} {AUSTRAL}}, booktitle = {}, journal = {{G}eophysical {R}esearch {L}etters}, volume = {46}, numero = {24}, pages = {14567--14575}, ISSN = {0094-8276}, year = {2019}, DOI = {10.1029/2019gl084657}, URL = {https://www.documentation.ird.fr/hor/fdi:010077431}, }