@article{fdi:010094363,
  title = {{M}ultidecadal changes in hydrological droughts across {S}ub-{S}aharan {A}frica},
  author = {{P}eña-{A}ngulo, {D}. and {T}ramblay, {Y}ves and {V}icente-{S}errano, {S}. {M}. and {E}kolu, {J}. and {D}ieppois, {B}. and {E}l {K}enawy, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{S}tudy {R}egion: {S}ub-{S}aharan {A}frica, a region highly vulnerable to climate variability, faces significant challenges from hydrological droughts due to their widespread socio-economic and environmental impacts. {S}tudy {F}ocus: {T}his study investigates the spatiotemporal evolution of hydrological droughts and their links to meteorological droughts across {S}ub-{S}aharan {A}frica. {U}sing the {A}frican {D}atabase of {H}ydrometric {I}ndices ({ADHI}), we analyze streamflow data from 1466 gauging stations spanning 1951-2018 to detect trends in drought characteristics. {N}ew {H}ydrological {I}nsight: {A} major shift in hydrological drought patterns occurred in the 1980s, with increased drought duration and severity during 1951-1980, followed by a general decrease from 1981 onward. {S}patially, southern {A}frica experienced more frequent but shorter and less severe droughts, whereas central and eastern regions saw fewer but more intense and prolonged events. {T}hese spatial contrasts reflect differences in climate and basin characteristics. {A}lthough meteorological drought indices ({SPI}, {SPEI}) broadly align with hydrological drought trends, local factors introduce important variability. {T}hese findings enhance our understanding of drought dynamics in the region, with implications for water management, food security, and climate adaptation strategies.},
  keywords = {{S}treamflow ; {D}rought indices ; {T}rend ; {S}ub-{S}aharan {A}frica ; {AFRIQUE} {SUBSAHARIENNE}},
  booktitle = {},
  journal = {{J}ournal of {H}ydrology : {R}egional {S}tudies},
  volume = {60},
  numero = {},
  pages = {102595 [16 p.]},
  year = {2025},
  DOI = {10.1016/j.ejrh.2025.102595},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094363},
}