@article{fdi:010081261,
  title = {{C}hanges in summer precipitation variability in central {B}razil over the past eight decades},
  author = {{P}rado, {L}. {F}. and {W}ainer, {I}. and {Y}okoyama, {E}. and {K}hodri, {M}yriam and {G}arnier, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}entral {B}razil hydroclimate is in the core region of the {S}outh {A}merican monsoon system. {T}hus, understanding precipitation variability in this area is crucial not only for the prediction of extreme events such as droughts and floods, but also for water resources management. {O}cean teleconnections influence central {B}razil precipitation from intraseasonal to interdecadal frequencies, in both linear and nonlinear ways, mainly during the austral summer. {P}acific {O}cean climate modes can influence {S}outh {A}merican precipitation, but how its variability changes over time is still a theme of scientific debate. {H}ere we examined the influence of {P}acific variability on summer precipitation in central {B}razil during the last eight decades. {W}e applied nonparametric spectral methods to four different observational datasets, and to {AMIP}-type precipitation outputs from the {L}aboratoire de {M}eteorologie {D}ynamique zoom model ({LMDZ}) in {C}oupled {M}odel {I}ntercomparison {P}roject phases 5 and 6 ({CMIP}5 and {CMIP}6) contributions of the {I}nstitut {P}ierre {S}imon {L}aplace ({IPSL}) coupled model. {O}ur results showed an increase in amplitude and frequency of summer precipitation variability after the 1970s climate transition. {S}pectral analysis associated these changes to a transition in {P}acific {O}cean influence to central {B}razil precipitation, from {PDO}- to {E}l {N}ino-{S}outhern {O}scillation ({ENSO})-related variability after the 1970s climate transition. {C}omposite analysis suggests these changes are related to teleconnection patterns between the {P}acific {O}cean and {S}outh {A}merica precipitation.},
  keywords = {climate shift ; {CMIP} ; {ENSO} ; {IPSL} ; {P}acific {O}cean ; {PDO} ; precipitation ; wavelets ; {BRESIL} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{I}nternational {J}ournal of {C}limatology},
  volume = {41},
  numero = {8},
  pages = {4171--4186},
  ISSN = {0899-8418},
  year = {2021},
  DOI = {10.1002/joc.7065},
  URL = {https://www.documentation.ird.fr/hor/fdi:010081261},
}