@article{fdi:34274,
  title = {{V}alidation of the geostrophic method for estimating zonal currents at the {E}quator from {G}eosat altimeter data},
  author = {{P}icaut, {J}o{\¨e}l and {B}usalacchi, {A}.{J}. and {M}c{P}haden, {M}.{J}. and {C}amusat, {B}runo},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he applicability of satellite altimeter data for estimating zonal current variability at the equator is assessed using the meridionally differenced form of the geostrophic balance. {E}stimates of geostrophic zonal flow anomalies in the {E}quatorial {P}acific have been deduced from 17-day collinear altimeter data during the first year of the {G}eosat exact repeat mission, {N}ovember 1986 to {N}ovember 1987. {A}ltimeter-derived geostrophic estimates agree well with in situ zonal current variability. {C}omparison of low-frequency, near surface zonal current observed from equatorial moorings at 165°{E}, 140°{W}, and 110°{W} yield correlations of 0.83, 0.85 and {O}.51, respectively, with a mean rms difference of 23 cm s-1},
  keywords = {{COURANT} {GEOSTROPHIQUE} ; {DONNEES} {SATELLITE} ; {MODELE} {MATHEMATIQUE} ; {SATELLITE} {GEOSAT} ; {PACIFIQUE} {EQUATORIAL}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch},
  volume = {95},
  numero = {{C}3},
  pages = {3015--3024},
  ISSN = {0148-0227},
  year = {1990},
  DOI = {10.1029/{JC}095i{C}03p03015},
  URL = {https://www.documentation.ird.fr/hor/fdi:34274},
}