@article{fdi:010084664,
  title = {{A}ssessment of the {WRF}-{H}ydro uncoupled hydro-meteorological model on flashy watersheds of the {G}rande {T}erre tropical island of {N}ew {C}aledonia ({S}outh-{W}est {P}acific)},
  author = {{C}erbelaud, {A}. and {L}ef{\`e}vre, {J}{\'e}r{\^o}me and {G}enthon, {P}ierre and {M}enk{\`e}s, {C}hristophe},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy region: {S}ix watersheds of the main island of {N}ew {C}aledonia.& nbsp;{S}tudy focus: {I}n the context of a projected reduction of extreme precipitation events by ~ 20% by 2100 combined to large land cover variability, a distributed hydrological approach was adopted over {N}ew {C}aledonia. {T}he {WRF}-{H}ydro model was implemented using a one-way {WRF} meteorological forcing, with rainfall being spatially interpolated from rain gauge observations using the {T}hiessen polygon and {IDEW} methods. {T}he {D}ynamically {D}imensioned {S}earch algorithm was applied for calibration on three contrasted flash-floods. {T}wo-year validation allowed the dynamics of the watersheds to be studied and compared.& nbsp;{N}ew hydrological insights for the region: {G}ood results in terms of {N}ash-{S}utcliffe efficiency were reached on all watersheds ({NSE} >= 0.6). {WRF}-{H}ydro showed consistent water budget components for two flash-floods with 90% correlation between simulated and observed runoff coefficients of all basins. {A}djusted physical parameters matched known watershed morphological and hydrological features. {B}oth methods of rainfall interpolation produced similar {NSE} but strongly different water distributions, with simulated soil moisture changes varying by up to 60% during flash-floods. {S}patial patterns of soil moisture and flood decomposition led to improved understanding of watershed behavior and to a revision of infiltration properties for one of them. {O}verall, {WRF}-{H}ydro proved to be a suitable framework to better understand hydrological processes and efficiently handle prospective modifications of {N}ew {C}aledonia's land cover and climate regimes.},
  keywords = {{N}ew {C}aledonia ; {H}ydrological modeling ; {WRF}-{H}ydro ; {DDS} parameter adjustment ; {R}ainfall spatial interpolation ; {H}ydrograph separation ; {NOUVELLE} {CALEDONIE} ; {PACIFIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {40},
  numero = {},
  pages = {101003 [22 p.]},
  year = {2022},
  DOI = {10.1016/j.ejrh.2022.101003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084664},
}