@article{fdi:010084147,
  title = {{A} copula-based approach for assessing flood protection overtopping associated with a seasonal flood forecast in {N}iamey, {W}est {A}frica},
  author = {{D}jibo, {A}.{G}. and {S}eidou, {O}. and {M}oussa {S}aley, {H}. and {P}hilippon, {N}. and {S}ittichok, {K}. and {K}arambiri, {H}. and {P}aturel, {J}ean-{E}mmanuel},
  editor = {},
  language = {{ENG}},
  abstract = {{F}lood is one of the most important natural disasters that cause huge loss of life and properties every year around the world. {M}oreover, the {I}nternational {F}ederation of the {R}ed {C}ross and {R}ed {C}rescent {S}ocieties pointed out that floods were by far the greatest cause of homelessness. {I}n {W}est {A}frica, many countries are damaged from flooding almost every season. {T}hus, this study aimed to set a seasonal flood forecast model and carried out an evaluation of the level of risk associated with each seasonal forecast. {HEC}-{RAS} ({H}ydrologic {E}ngineering {C}enters {R}iver {A}nalysis {S}ystem) was used to develop a hydro-dynamical model of {N}iger river on a 160 km reach (80 km upstream to 80km downstream of {N}iamey), then a simple risk measure was used to calculate the probability of overtopping the flood protection dykes in {N}iamey. {R}esults show that the hydro-dynamical model reproduced well the rating curve over the period 2009-2014. {A} subsequent copula analysis demonstrated a dependency between flow on the {N}iger river and flow on the {S}irba {R}iver, the main tributary contributing to the seasonal flood at {N}iamey. {T}he {G}umbel copula was found to be the best among the tested 5 copulas to represent the dependency between peak flow on the main channel of the {N}iger {R}iver and concomitant flow on the {S}irba river. {I}t is found that for the six dykes the probabilities of being overtopped by the flood range from very high (100%) to relatively low (16.67 %) over the 34 years of simulation.},
  keywords = {{CRUE} ; {INONDATION} ; {MODELISATION} ; {PREVISION} ; {EVALUATION} ; {DEBIT} ; {AMENAGEMENT} {HYDRAULIQUE} ; {METHODOLOGIE} ; {COURS} {D}'{EAU} ; {DIGUE} ; {AFFLUENT} ; {AFRIQUE} {DE} {L}'{OUEST} ; {NIGER} ; {NIAMEY} ; {NIGER} {COURS} {D}'{EAU} ; {KANDADJI} {COURS} {D}'{EAU} ; {SIRBA} {COURS} {D}'{EAU} ; {GARBE} {KOUROU}},
  booktitle = {},
  journal = {{J}ournal of {G}eography, {E}nvironment and {E}arth {S}cience {I}nternational},
  volume = {15},
  numero = {3},
  pages = {{JGEESI}.41773 [22 ]},
  ISSN = {2454-7352},
  year = {2018},
  DOI = {10.9734/{JGEESI}/2018/41773},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084147},
}