@article{fdi:010075307,
  title = {{I}nfluence of air-sea coupling on {I}ndian {O}cean tropical cyclones},
  author = {{L}engaigne, {M}atthieu and {N}eetu, {S}. and {S}amson, {G}. and {V}ialard, {J}{\'e}r{\^o}me and {K}rishnamohan, {K}. {S}. and {M}asson, {S}. and {J}ullien, {S}. and {S}uresh, {I}. and {M}enk{\`e}s, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his paper assesses the impact of air-sea coupling on {I}ndian {O}cean tropical cyclones ({TC}s) by comparing a 20-year long simulation of a 1/4 degrees regional coupled ocean-atmosphere model with a twin experiment, where the atmospheric component is forced by sea surface temperature from the coupled simulation. {T}he coupled simulation reproduces the observed spatio-temporal {TC}s distribution and {TC}-induced surface cooling reasonably well, but overestimates the number of {TC}s. {A}ir-sea coupling does not affect the cyclogenesis spatial distribution but reduces the number of {TC}s by 20% and yields a better-resolved bimodal seasonal distribution in the northern hemisphere. {C}oupling also affects intensity distribution, inducing a four-fold decrease in the proportion of intense {TC}s ({C}at-2 and stronger). {A}ir-sea coupling damps {TC}s growth through a reduction of inner-core upward enthalpy fluxes due to the {TC}-induced cooling. {T}his reduction is particularly large for the most intense {TC}s of the northern {I}ndian {O}cean (up to 250{W}m(-2)), due to higher ambient surface temperatures and larger {TC}-induced cooling there. {T}he negative feedback of air-sea coupling on strongest {TC}s is mainly associated with slow-moving storms, which spend more time over the cold wake they induce. {S}ensitivity experiments using a different convective parameterization yield qualitatively similar results, with a larger (65%) reduction in the number of {TC}s. {B}ecause of their relatively coarse resolution (1/4 degrees), both set of experiments however fail to reproduce the most intenseobserved {TC}s. {F}urther studies with finer resolution models in the {B}ay of {B}engal will be needed to assess the expectedly large impact of air-sea coupling on those intense anddeadly {TC}s.},
  keywords = {{T}ropical cyclones ; {A}ir-sea coupling ; {I}ndian {O}cean ; {C}old wake ; {R}egional coupled ocean-atmosphere model ; {OCEAN} {INDIEN}},
  booktitle = {},
  journal = {{C}limate {D}ynamics},
  volume = {52},
  numero = {1-2},
  pages = {577--598},
  ISSN = {0930-7575},
  year = {2019},
  DOI = {10.1007/s00382-018-4152-0},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075307},
}