Earth System Dynamics
Earth System Dynamics
ESD
Articles | Volume 15, issue 2
Articles | Volume 15, issue 2
https://doi.org/10.5194/esd-15-323-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esd-15-323-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 2
Research article
 | 
02 Apr 2024
Research article |  | 02 Apr 2024

Estimating freshwater flux amplification with ocean tracers via linear response theory

Aurora Basinski-Ferris and Laure Zanna

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Short summary
Under anthropogenic climate change, the hydrological cycle is expected to intensify. However, it is difficult to directly measure the amplification that has occurred over the past decades. Generally, ocean salinity patterns are used to infer this change in the hydrological cycle. Here, we present a new method to do this inference based on linear response theory. We find that over the period 1975–2019, the hydrological cycle has amplified by 5.04 % ± 1.27 % per degree Celsius of surface warming.
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