@article{fdi:010055912, title = {{A}ssessing the oceanic control on the amplitude of sea surface cooling induced by tropical cyclones}, author = {{V}incent, {E}. {M}. and {L}engaigne, {M}atthieu and {V}ialard, {J}{\'e}r{\^o}me and {M}adec, {G}. and {J}ourdain, {N}. {C}. and {M}asson, {S}.}, editor = {}, language = {{ENG}}, abstract = {{T}ropical cyclones ({TC}s) induce sea surface cooling that feeds back negatively on their intensity. {P}revious studies indicate that the cooling magnitude depends on oceanic conditions as well as {TC} characteristics, but this oceanic control has been poorly documented. {W}e investigate the oceanic influence on {TC}-induced cooling using a global ocean model experiment that realistically samples the ocean response to more than 3,000 {TC}s over the last 30 years. {W}e derive a physically grounded oceanic parameter, the {C}ooling {I}nhibition index ({CI}), which measures the potential energy input required to cool the ocean surface through vertical mixing, and hence accounts for the pre-storm upper-ocean stratification resistance to {TC}-induced cooling. {T}he atmospheric control is described using the wind power index ({WP}i), a proxy of the kinetic energy transferred to the ocean by a {TC}, which accounts for both the effects of maximum winds and translation speed. {T}he cooling amplitude increases almost linearly with {WP}i. {F}or a given {WP}i, the cooling amplitude can however vary by an order of magnitude: a strong wind energy input can either result in a 0.5 degrees {C} or 5 degrees {C} cooling, depending on oceanic background state. {U}sing an oceanic parameter such as {CI} in addition to wind energy input improves statistical hindcasts of the cold wake amplitude by similar to 40%. {D}eriving an oceanic parameter based on the potential energy required to cool the ocean surface through vertical mixing is thus a promising way to better account for ocean characteristics in {TC}s studies.}, keywords = {{ZONE} {TROPICALE}}, booktitle = {}, journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans}, volume = {117}, numero = {}, pages = {{C}05023}, ISSN = {0148-0227}, year = {2012}, DOI = {10.1029/2011jc007705}, URL = {https://www.documentation.ird.fr/hor/fdi:010055912}, }