Sea ice growth rates from tide-driven visible banding
In this paper, periodic tide-current-driven banding in a sea-ice core is demonstrated as a measure of the growth rate of first-year sea ice at congelation-ice depths. The study was performed on a core from the eastern McMurdo Sound, exploiting the well-characterized tidal pattern at the site. It poi...
| Main Authors: | , , , , , , , |
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| Format: | Other Non-Article Part of Journal/Newspaper |
| Language: | unknown |
| Published: |
Open Access Victoria University of Wellington | Te Herenga Waka
2021
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.25455/wgtn.17148191.v1 https://openaccess.wgtn.ac.nz/articles/journal_contribution/Sea_ice_growth_rates_from_tide-driven_visible_banding/17148191/1 |
| Summary: | In this paper, periodic tide-current-driven banding in a sea-ice core is demonstrated as a measure of the growth rate of first-year sea ice at congelation-ice depths. The study was performed on a core from the eastern McMurdo Sound, exploiting the well-characterized tidal pattern at the site. It points the way to a technique for determining early-season ice growth rates from late-season cores, in areas where under ice currents are known to be tidally dominated and the ice is landfast, thus providing data for a time of year when thin ice prevents direct thickness (and therefore growth rate) measurements. The measured results were compared to the growth-versus-depth predicted by a thermodynamic model. |
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