@article{fdi:010084401,
  title = {{T}he {O}rinoco low-level jet and the cross-equatorial moisture transport over {T}ropical {S}outh {A}merica : lessons from seasonal {WRF} simulations},
  author = {{M}artinez, {J}. {A}. and {A}rias, {P}. {A}. and {J}unquas, {C}l{\'e}mentine and {E}spinoza, {J}. {C}. and {C}ondom, {T}homas and {D}ominguez, {F}. and {M}orales, {J}. {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} study of the simulation of the {O}rinoco {L}ow-{L}evel {J}et ({OLLJ}) and the cross-equatorial moisture transport over tropical {S}outh {A}merica using the {W}eather {R}esearch and {F}orecasting ({WRF}) model is presented. {T}he focus is on the diurnal cycle and monthly means during one {D}ecember-{J}anuary-{F}ebruary ({DJF}) season (2003-2004). {T}he sensitivity of the {OLLJ} and cross-equatorial moisture transport to the representation of surface fluxes and turbulence is explored by using two different {L}and {S}urface {M}odels ({LSM}) and three {P}lanetary {B}oundary {L}ayer ({PBL}) schemes. {D}ifferent {LSM}s produce large differences in the sensible heat flux over the {O}rinoco basin, but no substantial differences in the flow at the entrance of the {OLLJ}. {H}owever, these changes in surface fluxes were associated with a change in the low-level pressure gradient between the {O}rinoco and {A}mazon basins, and with up to 10% change in the simulated cross-equatorial moisture transport. {T}he largest effects from different {PBL} schemes were found in the low-level flow near the {A}ndes cordillera, and on the low-level southward cross-equatorial flow during the daytime. {O}ne of the {PBL} schemes exhibited a reduced moisture transport on the eastern flank of the {A}ndes but enhanced southward transport around the core of the cross-equatorial moisture flux. {A}nother {PBL} scheme produced a stronger net cross-equatorial moisture transport, with enhanced precipitation over the {A}ndes-{A}mazon region by up to 30% during the afternoon and up to 13% in the daily mean. {I}mproved observations over the region are needed to evaluate which combination best represents the flow.},
  keywords = {{O}rinoco low-level jet ; {C}ross-equatorial {M}oisture {T}ransport ; {B}oundary ; {L}ayer ; {L}and {S}urface {M}odels ; {WRF} ; {AMERIQUE} {DU} {SUD} ; {ZONE} {EQUATORIALE} ; {ZONE} {TROPICALE} ; {ANDES} ; {AMAZONIE} ; {ORENOQUE} {BASSIN}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {A}tmospheres},
  volume = {127},
  numero = {3},
  pages = {e2021{JD}035603 [22 p.]},
  ISSN = {2169-897{X}},
  year = {2022},
  DOI = {10.1029/2021jd035603},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084401},
}