| Publikationstyp: | Konferenz: Sonstiges |
| Art der Begutachtung: | Keine Angabe |
| Titel: | Can stochastic resonance explain the amplification of planetary tidal forcing? |
| Autor/-in: | Albert, Carlo Ulzega, Simone |
| et. al: | No |
| Angaben zur Konferenz: | 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019 |
| Erscheinungsdatum: | 2019 |
| Sprache: | Englisch |
| Fachgebiet (DDC): | 500: Naturwissenschaften 510: Mathematik |
| Zusammenfassung: | Repeated Grand Minima revealed by proxies of solar activity suggest that the Sun alternates between two stable states, a quiescent and an active one. If the intrinsic noise of the solar dynamo allows for a frequent switching between these stable states, a tiny periodic modulation of the corresponding transition probabilities can be greatly amplified – a phenomenon known as stochastic resonance. It is well-known that Babcock-Leighton-type dynamo models can be reduced to a stochastic iterative map model capable of capturing the essential low-frequency features of the solar dynamo mechanism. In such a simplified framework, we give numerical evidence that a tiny tidal modulation of the minimal magnetic field required for flux-tube buoyancy is greatly amplified by the dynamo, provided that it operates close enough to a critical bifurcation point. Inference with more refined dynamo models is required to test this “criticality hypothesis”. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/18954 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Keine Angabe |
| Departement: | Life Sciences und Facility Management |
| Organisationseinheit: | Institut für Computational Life Sciences (ICLS) |
| Publiziert im Rahmen des ZHAW-Projekts: | BISTOM - Bayesian Inference with Stochastic Models |
| Enthalten in den Sammlungen: | Publikationen Life Sciences und Facility Management |
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Albert, C., & Ulzega, S. (2019). Can stochastic resonance explain the amplification of planetary tidal forcing? 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019.
Albert, C. and Ulzega, S. (2019) ‘Can stochastic resonance explain the amplification of planetary tidal forcing?’, in 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019.
C. Albert and S. Ulzega, “Can stochastic resonance explain the amplification of planetary tidal forcing?,” in 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019, 2019.
ALBERT, Carlo und Simone ULZEGA, 2019. Can stochastic resonance explain the amplification of planetary tidal forcing? In: 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019. Conference presentation. 2019
Albert, Carlo, and Simone Ulzega. 2019. “Can Stochastic Resonance Explain the Amplification of Planetary Tidal Forcing?” Conference presentation. In 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019.
Albert, Carlo, and Simone Ulzega. “Can Stochastic Resonance Explain the Amplification of Planetary Tidal Forcing?” 4th Solar Dynamo Thinkshop, Rome, Italy, 25 - 26 November 2019, 2019.
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