@article{fdi:010058163, title = {{I}mpact of tropical cyclones on the heat budget of the {S}outh {P}acific {O}cean}, author = {{J}ullien, {S}. and {M}enk{\`e}s, {C}hristophe and {M}archesiello, {P}atrick and {J}ourdain, {N}.{C}. and {L}engaigne, {M}atthieu and {K}och {L}arrouy, {A}riane and {L}ef{\`e}vre, {J}{\'e}r{\^o}me and {V}incent, {E}.{M}. and {F}aure, {V}.}, editor = {}, language = {{ENG}}, abstract = {{T}he present study investigates the integrated ocean response to tropical cyclones ({TC}s) in the {S}outh {P}acific convergence zone through a complete ocean heat budget. {T}he {TC} impact analysis is based on the comparison between two long-term (1979-2003) oceanic simulations forced by a mesoscale atmospheric model solution in which extreme winds associated with cyclones are either maintained or filtered. {T}he simulations provide a statistically robust experiment that fills a gap in the current modeling literature between coarse-resolution and short-term studies. {T}he authors results show a significant thermal response of the ocean to at least 500-m depth, driven by competing mixing and upwelling mechanisms. {A}s suggested in previous studies, vertical mixing largely explains surface cooling induced by {TC}s. {H}owever, {TC}-induced upwelling of deeper waters plays an unexpected role as it partly balances the warming of subsurface waters induced by vertical mixing. {B}elow 100 m, vertical advection results in cooling that persists long after the storm passes and has a signature in the ocean climatology. {T}he heat lost through {TC}-induced vertical advection is exported outside the cyclogenesis area with strong interannual variability. {I}n addition, 60% of the heat input below the surface during the cyclone season is released back to the oceanic mixed layer through winter entrainment and then to the atmosphere. {T}herefore, seasonal modulation reduces the mean surface heat flux due to {TC}s to about 3 {X} 10(-3) {PW} in this region exposed to 10%-15% of the world's cyclones. {T}he resulting climatological anomaly is a warming of about 0.1 degrees {C} in the subsurface layer and cooling below the thermoclinc (less than 0.1 degrees {C}).}, keywords = {{PACIFIQUE} {SUD}}, booktitle = {}, journal = {{J}ournal of {P}hysical {O}ceanography}, volume = {42}, numero = {11}, pages = {1882--1906}, ISSN = {0022-3670}, year = {2012}, DOI = {10.1175/jpo-d-11-0133.1}, URL = {https://www.documentation.ird.fr/hor/fdi:010058163}, }