Articles | Volume 23, issue 12
https://doi.org/10.5194/bg-23-4271-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4271-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Air–Sea Interactions and Biogeochemical Responses to Medicane Daniel
Institute of Soil, Water and Environmental Sciences, Volcani Institute, Agriculture Research Organization, Rishon LeTsiyon, Israel
Ehud Strobach
Institute of Soil, Water and Environmental Sciences, Volcani Institute, Agriculture Research Organization, Rishon LeTsiyon, Israel
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The Green's functions methodology offers a systematic, easy-to-implement, computationally cheap, scalable, and extendable method to tune uncertain parameters in models accounting for the dependent response of the model to a change in various parameters. Herein, we successfully show for the first time that long-term errors in earth system models can be considerably reduced using Green's functions methodology. The method can be easily applied to any model containing uncertain parameters.
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Editorial statement
This study provides a rare and timely observational analysis of Medicane Daniel, one of the most devastating storms in Mediterranean history, integrating both physical and biogeochemical responses of the upper ocean to extreme atmospheric forcing. By combining high-resolution SWOT observations with satellite and reanalysis data, the authors demonstrate how pre-existing ocean conditions—including warm-core eddies, elevated ocean heat content, and a marine heatwave—contributed to storm intensification and shaped the magnitude and persistence of ocean mixing, nutrient supply, and biological productivity responses. The results provide an important benchmark for understanding and modeling compound ocean–atmosphere extremes, which are expected to become more frequent in a warming climate.
This study provides a rare and timely observational analysis of Medicane Daniel, one of the most...
Short summary
This study examines Medicane Daniel, showing how a warm-core eddy (WCE), high ocean heat content (OHC), and a marine heatwave (MHW) sustained its intensity near Libya. Using high-resolution Surface Water and Ocean Topography (SWOT) observations, we reveal fine-scale eddy dynamics and larger WCE structures than those captured by conventional datasets, highlighting their role in air–sea interactions. Enhanced moisture convergence supported storm intensification, while storm-induced mixing and upwelling increased chlorophyll, nutrient, and oxygen concentrations.
This study examines Medicane Daniel, showing how a warm-core eddy (WCE), high ocean heat content...
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