@article{fdi:010094503,
  title = {{T}rend analysis of reference evapotranspiration and climate variables in the main hydrosystems of {S}enegal : {S}enegal, {G}ambia and {C}asamance river basins},
  author = {{N}diaye, {P}.{M}. and {B}odian, {A}. and {D}iop, {S}.{B}. and {D}iop, {L}. and {D}ezetter, {A}lain and {O}gilvie, {A}ndrew and {D}jaman, {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A}nalysis of reference evapotranspiration ({ET}0) trends is essential for understanding the impacts of climate change on water resources. {T}hus, despite the continuous rise in temperatures, a decrease in evapotranspiration is noted in some parts of the world. {T}his contrast is called the 'evaporation paradox' and is thought to be related to the variation in wind speed, relative humidity and solar radiation. {T}he objective of this work is to analyze the annual and seasonal trends of {ET}0 and climate variables at the scale of the {S}enegal, {G}ambia and {C}asamance river basins. {T}he reanalyze data of {NASA}/{POWER} are used over the period 1984-2019. {M}ann {K}endall's test and {S}en slope were used to analyze trends in {ET}0 and climate variables. {R}esults show that on annual scale, {ET}0 increases significantly in 32?% of the {S}enegal basin and decreases in less than 1 % of it. {I}n contrast, in the {C}asamance and {G}ambia basins, the annual {ET}0 drops by 65% and 18%, respectively. {O}n an annual scale, temperature and relative humidity show an increasing trend over all basins while wind speed and radiation decrease significantly. {T}his confirms the existence of the evaporation paradox in the three basins. {T}his phenomenon is explained by the increase in relative humidity and the decrease in wind speed and solar radiation.},
  keywords = {{SENEGAL} ; {GAMBIE} {BASSIN} ; {CASAMANCE} {BASSIN}},
  booktitle = {{IAHS}2022 - {H}ydrological sciences in the {A}nthropocene},
  journal = {{P}roceedings of {IAHS}},
  volume = {385},
  numero = {},
  pages = {305--311},
  ISSN = {2199-899{X}},
  year = {2024},
  DOI = {10.5194/piahs-385-305-2024},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094503},
}