@article{fdi:010065369,
  title = {{A}ssessment of satellite rainfall products over the {A}ndean plateau},
  author = {{S}atge, {F}. and {B}onnet, {M}arie-{P}aule and {G}osset, {M}arielle and {M}olina, {J}. and {L}ima, {W}. {H}. {Y}. and {Z}ola, {R}. {P}. and {T}imouk, {F}ranck and {G}arnier, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{N}ine satellite rainfall estimations ({SRE}s) were evaluated for the first time over the {S}outh {A}merican {A}ndean plateau watershed by comparison with rain gauge data acquired between 2005 and 2007. {T}he comparisons were carded out at the annual, monthly and daily time steps. {A}ll {SRE}s reproduce the salient pattern of the annual rain field, with a marked north-south gradient and a lighter east-west gradient. {H}owever, the intensity of the gradient differs among {SRE}s: it is well marked in the {T}ropical {R}ainfall {M}easuring {M}ission ({TRMM}) {M}ultisatellite {P}recipitation {A}nalysis 3842 ({TMPA}-3{B}42), {P}recipitation {E}stimation from remotely {S}ensed {I}nformation using {A}rtificial {N}eural {N}etworks ({PERSIANN}) and {G}lobal {S}atellite {M}apping of {P}recipitation ({GSM}a{P}) products, and it is smoothed out in the {C}limate prediction center {MORPH}ing ({CMORPH}) products. {A}nother interesting difference among products is the contrast in rainfall amounts between the water surfaces ({L}ake {T}iticaca) and the surrounding land. {S}ome products ({TMPA}-3{B}42, {PERSIANN} and {GSM}a{P}) show a contradictory rainfall deficit over {L}ake {T}iticaca, which may be due to the emissivity contrast between the lake and the surrounding lands and warm rain cloud processes. {A}n analysis differentiating coastal {L}ake {T}iticaca from inland pixels confirmed this trend. {T}he raw or {R}eal {T}ime ({RT}) products have strong biases over the study region. {T}hese biases are strongly positive for {PERSIANN} (above 90%), moderately positive for {TMPA}-3{B}42 (28%), strongly negative for {CMORPH} (-42%) and moderately negative for {GSM}a{P} (-18%). {T}he biases are associated with a deformation of the rain rate frequency distribution: {GSM}a{P} underestimates the proportion of rainfall events for all rain rates; {CMORPH} overestimates the proportion of rain rates below 2 mm day(-1); and the other products tend to overestimate the proportion of moderate to high rain rates. {T}hese biases are greatly reduced by the gauge adjustment in the {TMPA}-3{B}42, {PERSIANN} and {CMORPH} products, whereas a negative bias becomes positive for {GSM}a{P}. {TMPA}-3{B}42 {A}djusted ({A}dj) version 7 demonstrates the best overall agreement with gauges in terms of correlation, rain rate distribution and bias. {H}owever, {PERSIANN}-{A}dj's bias in the southern part of the domain is very low.},
  keywords = {{S}atellite rainfall estimation ; {A}ssessment ; {A}ndean plateau ; {BOLIVIE} ; {PEROU} ; {CHILI} ; {ANDES}},
  booktitle = {},
  journal = {{A}tmospheric {R}esearch},
  volume = {167},
  numero = {},
  pages = {1--14},
  ISSN = {0169-8095},
  year = {2016},
  DOI = {10.1016/j.atmosres.2015.07.012},
  URL = {https://www.documentation.ird.fr/hor/fdi:010065369},
}