@article{PAR00006295,
  title = {{O}n the use of {A}dvanced {M}icrowave {S}ounding {U}nit-{A} and -{B} measurements for studying the monsoon variability over {W}est {A}frica},
  author = {{E}ymard, {L}aurence and {K}arbou, {F}. and {J}anicot, {S}erge and {C}houaib, {N}adine and {P}insard, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he advanced microwave sounding unit ({AMSU}) -{A} and -{B} sensors provide observations of humidity and temperature that are relevant for meteorological and climate studies. {T}he use of these observations in numerical weather prediction models has increased in the past 10 years because of some improvements in data assimilation. {H}owever, an appropriate use of {AMSU} measurements apart from assimilation context is rather difficult and depends for the most part on how successfully the instrumental characteristics are accounted for. {I}n particular, atmosphere humidity and temperature variations can be completely hidden by features because of the effect of the observation zenith angle. {I}n this paper, 8 years of {AMSU}-{A} and -{B} observations have been corrected from the observations zenith angle effect and have been used to study temperature and humidity variations over {W}est {A}frica. {C}omparisons have been made between {AMSU} observations and selected atmospheric fields from {E}uropean {C}entre for {M}edium-{R}ange {W}eather {F}orecasts analyses as well as outgoing longwave radiation estimates. {I}t has been found that observations from {AMSU}-{A} channel 5 can be used to monitor the heat low evolution and that {AMSU}-{B} observations from channels 3 and 5 are well adapted to study the humidity variations in direct link with the {A}frican monsoon from intraseasonal to interannual scales.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch.{A}tmospheres},
  volume = {115},
  numero = {},
  pages = {{D}20115},
  ISSN = {0148-0227},
  year = {2010},
  DOI = {10.1029/2009jd012935},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00006295},
}