@article{fdi:010060387, title = {{E}valuation of several rainfall products used for hydrological applications over {W}est {A}frica using two high-resolution gauge networks}, author = {{G}osset, {M}arielle and {V}iarre, {J}. and {Q}uantin, {G}. and {A}lcoba, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he evaluation of rainfall products over the {W}est {A}frican region will be an important component of the {M}egha-{T}ropiques ({MT}) {G}round {V}alidation ({GV}) plan. {I}n this paper, two dense research gauge networks from {B}enin and {N}iger, integrated in the {MT} {GV} plan, are presented and are used to evaluate several currently available global or regional satellite-based rainfall products. {E}ight productsthe {P}recipitation {E}stimation from {R}emotely {S}ensed {I}nformation using {A}rtificial {N}eural {N}etworks ({PERSIANN}), {C}limate {P}rediction {C}enter {M}orphing method ({CMORPH}), {T}ropical {R}ainfall {M}easuring {M}ission ({TRMM}) {M}ulti-satellite {P}recipitation {A}nalysis ({TMPA}) 3{B}42 real-time and gauge-adjusted version, {G}lobal {S}atellite {M}apping of {P}recipitation ({GSM}a{P}), {C}limate {P}rediction {C}enter ({CPC}) {A}frican {R}ainfall {E}stimate ({RFE}), {E}stimation des {P}recipitation par {SAT}ellite ({EPSAT}), and {G}lobal {P}recipitation {C}limatology {P}roject {O}ne {D}egree {D}aily estimate ({GPCP}-1{DD})are compared to the ground reference. {T}he comparisons are carried out at daily, 1 degrees resolution, over the rainy season ({J}une-{S}eptember), between the years 2003 and 2010. {T}he work focuses on the ability of the various products to reproduce salient features of the rainfall regime that impact the hydrological response. {T}he products are analysed on a multi-criteria basis, focusing in particular on the way they distribute the rainfall within the season and by rain rate class. {S}tandard statistical diagnoses such as the correlation coefficient, bias, root mean square error and {N}ash skill score are computed and the inter-annual variability is documented. {T}wo simplified hydrological models are used to illustrate how the nature and structure of the product error impact the model output in terms of runoff (calculated using the {S}oil {C}onservation {S}ervice method, {SCS}, in {N}iger) or outflow (calculated with the modele du {G}enie {R}ural a 4 parametres {J}ournalier', {GR}4{J} model, in {B}enin).}, keywords = {satellite rainfall estimates ; {B}enin ; {N}iger ; hydrology ; validation ; quantitative rainfall estimates ({QPE}) ; {AFRIQUE} {DE} {L}'{OUEST} ; {BENIN} ; {NIGER}}, booktitle = {}, journal = {{Q}uarterly {J}ournal of the {R}oyal {M}eteorological {S}ociety}, volume = {139}, numero = {673}, pages = {923--940}, ISSN = {0035-9009}, year = {2013}, DOI = {10.1002/qj.2130}, URL = {https://www.documentation.ird.fr/hor/fdi:010060387}, }