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Higher-order statistical moments to analyse Arctic sea-ice drift patterns

التفاصيل البيبلوغرافية
العنوان: Higher-order statistical moments to analyse Arctic sea-ice drift patterns
المؤلفون: Satwant Kaur, Jennifer V. Lukovich, Jens K. Ehn, David G. Barber
المصدر: Annals of Glaciology, Vol 61, Pp 464-471 (2020)
بيانات النشر: Cambridge University Press, 2020.
سنة النشر: 2020
المجموعة: LCC:Meteorology. Climatology
مصطلحات موضوعية: Ice velocity, sea ice, sea-ice dynamics, sea-ice geophysics, Meteorology. Climatology, QC851-999
الوصف: Geophysical systems are often assumed to follow Gaussian probability density functions; however, deviations from Gaussian behaviour can shed light on the underlying dynamics. For the large-scale motion of the Arctic sea ice, such deviations have been interpreted as signatures of structure in dynamic flow fields. In this study, we use higher-order moments (skewness and kurtosis) to identify spatiotemporal changes in the Beaufort Gyre (BG) and the Transpolar Drift (TPD) sea-ice drift patterns. Higher-order moments of satellite-derived ice drift speeds are examined over the winter period of 2006–2017 to describe the persistence of features like the BG and TPD, and their variation over time. Index patterns indicate that the periphery of the BG can be identified by a combination of high positive skewness and high kurtosis in the ice drift time series on an annual basis.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 0260-3055
1727-5644
Relation: https://www.cambridge.org/core/product/identifier/S0260305521000069/type/journal_article; https://doaj.org/toc/0260-3055; https://doaj.org/toc/1727-5644
DOI: 10.1017/aog.2021.6
URL الوصول: https://doaj.org/article/8f56ad2299f44050a1a4de3bc4a7f9e7
رقم الأكسشن: edsdoj.8f56ad2299f44050a1a4de3bc4a7f9e7
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:02603055
17275644
DOI:10.1017/aog.2021.6