Articles | Volume 25, issue 7
Hydrol. Earth Syst. Sci., 25, 3805–3818, 2021
https://doi.org/10.5194/hess-25-3805-2021
Hydrol. Earth Syst. Sci., 25, 3805–3818, 2021
https://doi.org/10.5194/hess-25-3805-2021

Research article 02 Jul 2021

Research article | 02 Jul 2021

Long-term relative decline in evapotranspiration with increasing runoff on fractional land surfaces

Ren Wang et al.

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Latest update: 21 Sep 2021
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Short summary
Assessment of changes in the global water cycle has been a challenge. This study estimated long-term global latent heat and sensible heat fluxes for recent decades using machine learning and ground observations. The results found that the decline in evaporative fraction was typically accompanied by an increase in long-term runoff in over 27.06 % of the global land areas. The observation-driven findings emphasized that surface vegetation has great impacts in regulating water and energy cycles.