@article{fdi:010046176,
  title = {{S}outhern hemisphere winter cold-air mesocyclones : climatic environments and associations with teleconnections},
  author = {{C}laud, {C}. and {C}arleton, {A}. {M}. and {D}uchiron, {B}. and {T}erray, {P}ascal},
  editor = {},
  language = {{ENG}},
  abstract = {{C}old-air mesocyclones remain a forecasting challenge in the southern hemisphere middle and higher latitudes, where conventional observations are lacking. {O}ne way to improve mesocyclone predictability is to determine their larger-scale circulation environments and associations with teleconnection patterns. {T}o help realize this objective, reanalysis datasets on atmospheric and upper-ocean synoptic variables important in mesocyclone development are composited and compared to previously published mesocyclone spatial inventories. {T}hese analyses demonstrate a consistent association between higher frequencies of mesocyclones, greater sea ice extent and large positive differences in the {SST} minus low-altitude air temperature fields, coinciding with enhanced westerly low-level winds having a southerly component. {C}omposites in the 1979-2001 period also were formed for opposite phases of {E}l {N}io {S}outhern {O}scillation ({ENSO}), the {S}outhern {A}nnular {M}ode ({SAM}) and the {T}rans-{P}olar {I}ndex ({TPI}). {R}egions likely to be favorable for mesocyclone development relative to climatology were identified. {T}he largest (smallest) variations in meso-cyclogenesis occur in the {S}outh {P}acific ({S}outh {I}ndian {O}cean, south of {A}ustralia), and are dominated by {ENSO}. {T}he {SAM} and {TPI} are of secondary importance, yet still influential, and exhibit strong regional-scale variations.},
  keywords = {{C}old-air mesocyclones ; {T}eleconnections ; {ENSO} ; {SAM} ; {C}omposite analysis},
  booktitle = {},
  journal = {{C}limate {D}ynamics},
  volume = {33},
  numero = {2-3},
  pages = {383--408},
  ISSN = {0930-7575},
  year = {2009},
  DOI = {10.1007/s00382-008-0468-5},
  URL = {https://www.documentation.ird.fr/hor/fdi:010046176},
}