Articles | Volume 22, issue 24
https://doi.org/10.5194/bg-22-8093-2025
https://doi.org/10.5194/bg-22-8093-2025
Research article
 | 
19 Dec 2025
Research article |  | 19 Dec 2025

Multiscale statistical analysis of thermal and non-thermal components of seawater pCO2 in the Western English Channel: scaling, time-reversibility, and dependence

Kévin Robache and François G. Schmitt

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Cited articles

An, S.-I. and Jin, F.-F.: Nonlinearity and Asymmetry of ENSO, J. Climate, 17, 2399–2412, https://doi.org/10.1175/1520-0442(2004)017<2399:NAAOE>2.0.CO;2, 2004. a
Bakker, D. C. E., Pfeil, B., Landa, C. S., Metzl, N., O'Brien, K. M., Olsen, A., Smith, K., Cosca, C., Harasawa, S., Jones, S. D., Nakaoka, S., Nojiri, Y., Schuster, U., Steinhoff, T., Sweeney, C., Takahashi, T., Tilbrook, B., Wada, C., Wanninkhof, R., Alin, S. R., Balestrini, C. F., Barbero, L., Bates, N. R., Bianchi, A. A., Bonou, F., Boutin, J., Bozec, Y., Burger, E. F., Cai, W.-J., Castle, R. D., Chen, L., Chierici, M., Currie, K., Evans, W., Featherstone, C., Feely, R. A., Fransson, A., Goyet, C., Greenwood, N., Gregor, L., Hankin, S., Hardman-Mountford, N. J., Harlay, J., Hauck, J., Hoppema, M., Humphreys, M. P., Hunt, C. W., Huss, B., Ibánhez, J. S. P., Johannessen, T., Keeling, R., Kitidis, V., Körtzinger, A., Kozyr, A., Krasakopoulou, E., Kuwata, A., Landschützer, P., Lauvset, S. K., Lefèvre, N., Lo Monaco, C., Manke, A., Mathis, J. T., Merlivat, L., Millero, F. J., Monteiro, P. M. S., Munro, D. R., Murata, A., Newberger, T., Omar, A. M., Ono, T., Paterson, K., Pearce, D., Pierrot, D., Robbins, L. L., Saito, S., Salisbury, J., Schlitzer, R., Schneider, B., Schweitzer, R., Sieger, R., Skjelvan, I., Sullivan, K. F., Sutherland, S. C., Sutton, A. J., Tadokoro, K., Telszewski, M., Tuma, M., van Heuven, S. M. A. C., Vandemark, D., Ward, B., Watson, A. J., and Xu, S.: A multi-decade record of high-quality fCO2 data in version 3 of the Surface Ocean CO2 Atlas (SOCAT), Earth Syst. Sci. Data, 8, 383–413, https://doi.org/10.5194/essd-8-383-2016, 2016. a
Batchelor, G. K. and Townsend, A. A.: The Nature of Turbulent Motion at Large Wave-Numbers, P. R. Soc. A: Math. Phy., 199, 238–255, https://doi.org/10.1098/rspa.1949.0136, 1949. a
Bestehorn, M., Michelitsch, T. M., Collet, B. A., Riascos, A. P., and Nowakowski, A. F.: Simple Model of Epidemic Dynamics with Memory Effects, Phys. Rev. E, 105, 024205, https://doi.org/10.1103/PhysRevE.105.024205, 2022. a
Bozec, Y., Merlivat, L., Baudoux, A. C., Beaumont, L., Blain, S., Bucciarelli, E., Danguy, T., Grossteffan, E., Guillot, A., Guillou, J., Répécaud, M., and Tréguer, P.: Diurnal to Inter-Annual Dynamics of pCO2 Recorded by a CARIOCA Sensor in a Temperate Coastal Ecosystem (2003–2009), Mar. Chem., 126, 13–26, https://doi.org/10.1016/j.marchem.2011.03.003, 2011. a, b
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Short summary
Partial pressure of CO2 (pCO2) measurements were collected on the Astan buoy over nearly 5 years. Using advanced statistical tools, this study revealed that pCO2 variations, along with other parameters, follow turbulent and intermittent dynamics. We highlights the irreversibility of the thermal and non-thermal components of pCO2 and explores their links to temperature, biological production, and atmospheric or terrigenous inputs, providing new insights into high-frequency pCO2 variability.
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