@article{fdi:010087541,
  title = {{I}nter-comparison and validation against in-situ measurements of satellite estimates of incoming solar radiation for {C}entral {A}frica : from the annual means to the diurnal cycles},
  author = {{O}uhechou, {A}. and {P}hilippon, {N}. and {M}orel, {B}. and {T}rentmann, {J}. and {G}raillet, {A}. and {M}ariscal, {A}rmand and {N}ouvellon, {Y}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}his study pictures for the first time incoming solar radiation mean evolution in {C}entral {A}frica, intercomparing 8 gridded products (namely {CERES}-{EBAF}, {CERES}-{SYN}1deg, {TPDC}, {CMSAF} {SARAH}-2, {CMSAF} {CLARA}-{A}2, {CAMS} -{JADE} satellite products, as well as {ERA}5 reanalysis and {W}orld{C}lim 2 interpolated measurements) and station -based estimations ({FAOCLIM} 2) or measurements. {A}t the mean annual scale, all products picture low levels of global horizontal irradiance ({GHI}) to the west ({SW} {C}ameroon to {SW} {R}epublic of {C}ongo) and higher levels to-wards the north and south margins of the region. {H}owever, {GHI} levels in the {CMSAF} products are much higher than in {CERES} and {TPDC}. {T}he mean annual cycles of {GHI} extracted for 6 sub-regions are bimodal, with two maxima during the two rainy seasons ({M}arch-{M}ay and {S}eptember-{N}ovember) and two minima during the two dry seasons ({D}ecember-{F}ebruary and {J}une-{A}ugust). {T}hese seasonal cycles are well reproduced by most products except their amplitude which is dampened in {TPDC}. {A}t the daily and sub-daily time-scales, products were compared with in-situ measurements from ten meteorological stations located in the western part of {C}entral {A}frica. {T}he products' performance is assessed through scores as bias and {RMSE} but also by considering the diurnal cycles' shape, amplitude and frequency of occurrence along the annual cycle. {T}he products properly reproduce the shape of the four types of diurnal cycles with nonetheless noticeable differences in the cycle's frequencies of occurrence.},
  keywords = {{S}olar radiation ; {C}entral {A}frica ; {S}atellite estimates ; {D}iurnal cycle ; {AFRIQUE} {CENTRALE}},
  booktitle = {},
  journal = {{A}tmospheric {R}esearch},
  volume = {287},
  numero = {},
  pages = {106711 [20 ]},
  ISSN = {0169-8095},
  year = {2023},
  DOI = {10.1016/j.atmosres.2023.106711},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087541},
}