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Technical Note: On the use of the mushy-layer Rayleigh number for the interpretation of sea-ice-core data
Technical Note: On the use of the mushy-layer Rayleigh number for the interpretation of sea-ice-core data
Abstract. We examine some practical aspects of using a mushy-layer Rayleigh number for the interpretation of sea-ice-core data. In principle, such analysis should allow one to determine convectively active regions within the ice core by identifying those regions in which the mush-Rayleigh number is super-critical. In practice, however, a quantitative analysis is complicated by uncertainties regarding the specific formulation of both the mush-Rayleigh number itself and of the sea-ice permeability that is crucial for quantifying the Rayleigh number. Additionally, brine loss from highly permeable sections of the ice core, in particular close to the ice–ocean interface, and typically weekly ice core sampling, limit the practical applicability of the Rayleigh number for ice-core interpretation. We here quantify these uncertainties, suggest a standard method for the computation of the Rayleigh number for sea ice and discuss possibilities and limitations of ice-core interpretation based on the Rayleigh number.
- Max Planck Society Germany
- Sorbonne Paris Cité France
- UNIVERSITE PARIS DESCARTES France
- Institut de Recherche pour le Développement France
- Université Paris Diderot France
Microsoft Academic Graph classification: geography geography.geographical_feature_category Computation Geophysics Rayleigh number Interpretation (model theory) Core (optical fiber) Permeability (earth sciences) Theoretical physics Ice core Sea ice Limit (mathematics) Geology
arXiv: Physics::Geophysics Physics::Fluid Dynamics Astrophysics::Earth and Planetary Astrophysics Physics::Atmospheric and Oceanic Physics
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph], [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
Microsoft Academic Graph classification: geography geography.geographical_feature_category Computation Geophysics Rayleigh number Interpretation (model theory) Core (optical fiber) Permeability (earth sciences) Theoretical physics Ice core Sea ice Limit (mathematics) Geology
arXiv: Physics::Geophysics Physics::Fluid Dynamics Astrophysics::Earth and Planetary Astrophysics Physics::Atmospheric and Oceanic Physics
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).10 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).10 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
Citations provided by BIP!Popularity provided by BIP!- Max Planck Society Germany
- Sorbonne Paris Cité France
- UNIVERSITE PARIS DESCARTES France
- Institut de Recherche pour le Développement France
- Université Paris Diderot France
- French National Centre for Scientific Research France
- Université Libre de Bruxelles Belgium
- University of Liège Belgium
- Callaghan Innovation New Zealand
- Commissariat à l’énergie atomique et aux énergies alternatives France
Abstract. We examine some practical aspects of using a mushy-layer Rayleigh number for the interpretation of sea-ice-core data. In principle, such analysis should allow one to determine convectively active regions within the ice core by identifying those regions in which the mush-Rayleigh number is super-critical. In practice, however, a quantitative analysis is complicated by uncertainties regarding the specific formulation of both the mush-Rayleigh number itself and of the sea-ice permeability that is crucial for quantifying the Rayleigh number. Additionally, brine loss from highly permeable sections of the ice core, in particular close to the ice–ocean interface, and typically weekly ice core sampling, limit the practical applicability of the Rayleigh number for ice-core interpretation. We here quantify these uncertainties, suggest a standard method for the computation of the Rayleigh number for sea ice and discuss possibilities and limitations of ice-core interpretation based on the Rayleigh number.