@article{fdi:010058228,
  title = {{I}nfluence of upper-ocean stratification on tropical cyclone-induced surface cooling in the {B}ay of {B}engal},
  author = {{N}eetu, {S}. and {L}engaigne, {M}atthieu and {V}incent, {E}.{M}. and {V}ialard, {J}{\'e}r{\^o}me and {M}adec, {G}. and {S}amson, {G}. and {R}amesh {K}umar, {M}.{R}. and {D}urand, {F}abien},
  editor = {},
  language = {{ENG}},
  abstract = {{S}urface cooling induced by tropical cyclones ({TC}s) is about three times larger during premonsoon than during postmonsoon season in the {B}ay of {B}engal. {W}e investigate processes responsible for this seasonal contrast using an ocean general circulation model. {T}he model is forced by {TC} winds prescribed from an analytic vortex using observed {TC} tracks and intensities during 1978-2007. {T}he simulation accurately captures the seasonal cycle of salinity, temperature, and barrier layer in this region, with fresher waters, deeper upper-ocean stratification, and thicker barrier layers during postmonsoon season. {I}t also reproduces the three times larger {TC}-induced cooling during premonsoon than during postmonsoon season. {T}his difference is essentially related to seasonal changes in oceanic stratification rather than to differences in {TC} wind energy input. {D}uring the postmonsoon season, a deeper thermal stratification combined with a considerable upper-ocean freshening strongly inhibits surface cooling induced by vertical mixing underneath {TC}s. {O}n average, thermal stratification accounts for similar to 60% of this cooling reduction during postmonsoon season, while haline stratification accounts for the remaining 40%. {T}heir respective contributions however strongly vary within the {B}ay: haline stratification explains a large part of the {TC}-induced cooling inhibition offshore of northern rim of the {B}ay ({B}angladesh-{M}yanmar-east coast of {I}ndia), where salinity seasonal changes are the strongest, while thermal stratification explains all the cooling inhibition in the southwestern {B}ay. {T}his study hence advocates for an improved representation of upper-ocean salinity and temperature effects in statistical and dynamical {TC}s forecasts that could lead to significant improvements of {TC} intensity prediction skill. {C}itation: {N}eetu, {S}., {M}. {L}engaigne, {E}. {M}. {V}incent, {J}. {V}ialard, {G}. {M}adec, {G}. {S}amson, {M}. {R}. {R}amesh {K}umar, and {F}. {D}urand (2012), {I}nfluence of upper-ocean stratification on tropical cyclone-induced surface cooling in the {B}ay of {B}engal, {J}. {G}eophys. {R}es., 117, {C}12020, doi:10.1029/2012{JC}008433.},
  keywords = {{GOLFE} {DU} {BENGALE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch. {O}ceans},
  volume = {117},
  numero = {},
  pages = {{C}12020},
  ISSN = {0148-0227},
  year = {2012},
  DOI = {10.1029/2012jc008433},
  URL = {https://www.documentation.ird.fr/hor/fdi:010058228},
}