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On transitions in water wave propagation through consolidated to broken sea ice covers.

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Title: On transitions in water wave propagation through consolidated to broken sea ice covers.
Authors: Pitt, Jordan P. A.1 (AUTHOR) jpapitt@gmail.com, Bennetts, Luke G.1 (AUTHOR) luke.bennetts@adelaide.edu.au
Source: Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences. 9/12/2024, Vol. 480 Issue 2297, p1-23. 23p.
Subjects: Multiple scattering (Physics), Water waves, Bloch's theorem, Scattering (Physics), Ice fields
Abstract: A theoretical model is used to study water waves propagating into and through a region containing thin floating ice, for ice covers transitioning from consolidated (large floe sizes) to fully broken (small floe sizes). The degree of breaking is simulated by a mean floe length. The model predicts deterministic limits for consolidated and fully broken ice covers where the wave fields do not depend on the particular realization of the ice cover for a given mean floe length. The consolidated ice limit is consistent with classic flexural-gravity wave theory, and the fully broken limit is well-modelled by Bloch waves in a periodic ice cover. In the transition between the limits, the wave field depends on the ice cover realization, as multiple wave scattering is a dominant process. The effects of the ice cover on the wave field are quantified using a wavelength, an attenuation rate and a transferred amplitude (measuring the amplitude drop at the ice edge). The model predicts that as the ice cover breaks up (mean floe size gets smaller), the wavelength and amplitude drop decrease (transferred amplitude increases) and the attenuation rate increases. The results provide an interpretation of field observations. [ABSTRACT FROM AUTHOR]
Copyright of Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: A theoretical model is used to study water waves propagating into and through a region containing thin floating ice, for ice covers transitioning from consolidated (large floe sizes) to fully broken (small floe sizes). The degree of breaking is simulated by a mean floe length. The model predicts deterministic limits for consolidated and fully broken ice covers where the wave fields do not depend on the particular realization of the ice cover for a given mean floe length. The consolidated ice limit is consistent with classic flexural-gravity wave theory, and the fully broken limit is well-modelled by Bloch waves in a periodic ice cover. In the transition between the limits, the wave field depends on the ice cover realization, as multiple wave scattering is a dominant process. The effects of the ice cover on the wave field are quantified using a wavelength, an attenuation rate and a transferred amplitude (measuring the amplitude drop at the ice edge). The model predicts that as the ice cover breaks up (mean floe size gets smaller), the wavelength and amplitude drop decrease (transferred amplitude increases) and the attenuation rate increases. The results provide an interpretation of field observations. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Proceedings of the Royal Society A: Mathematical, Physical & Engineering Sciences is the property of Royal Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1098/rspa.2023.0862
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 23
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    Subjects:
      – SubjectFull: Multiple scattering (Physics)
        Type: general
      – SubjectFull: Water waves
        Type: general
      – SubjectFull: Bloch's theorem
        Type: general
      – SubjectFull: Scattering (Physics)
        Type: general
      – SubjectFull: Ice fields
        Type: general
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      – TitleFull: On transitions in water wave propagation through consolidated to broken sea ice covers.
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              M: 09
              Text: 9/12/2024
              Type: published
              Y: 2024
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