Nonlinear Processes in Geophysics
Nonlinear Processes in Geophysics
NPG
Articles | Volume 32, issue 1
Articles | Volume 32, issue 1
https://doi.org/10.5194/npg-32-35-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/npg-32-35-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 32, issue 1
Research article
 | 
22 Jan 2025
Research article |  | 22 Jan 2025

Scaling and intermittent properties of oceanic and atmospheric pCO2 time series and their difference in a turbulence framework

Kévin Robache, François G. Schmitt, and Yongxiang Huang

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Short summary
In this work, the multiscale dynamics of 38 oceanic and atmospheric pCO2 time series, sea surface temperature data, and salinity data from fixed buoys recorded with 3 h resolution are considered. The Fourier scaling exponents are estimated. The differences found for three ecosystems – coastal shelf, coral reefs and open ocean  – are discussed. Multifractal properties of pCO2 difference between ocean and atmosphere are found and characterized over the scale range from 3 h to 1 year.
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Turbulence, wave–current interactions, and other nonlinear...