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A Statistical Approach for Estimating Sea Ice Thickness
Volume 6: Polar and Arctic Sciences and Technology, 2023Abstract Sea ice reporting and ice charts are a necessary simplification of highly variable sea ice conditions over large areas. Ice conditions are typically shown using egg codes. These codes can be used to determine an equivalent ice thickness as a method for calculating a ship’s ice resistance.
Veber, Joshua +5 more
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Sea ice thickness and production in Weddell Sea polynyas
2022<p>Open-ocean and coastal polynyas, the result of high-latitude atmosphere-ocean circulation interannual variability, alter the local air-ocean heat exchange and sea ice production. Yet, the role of the ocean, especially its thermal flux, is rarely discussed.
Lu Zhou, Céline Heuzé, Martin Mohrmann
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Arctic sea ice thickness changes in terms of sea ice age
Acta Oceanologica Sinica, 2016In this study, changes in Arctic sea ice thickness for each ice age category were examined based on satellite observations and modelled results. Interannual changes obtained from Ice, Cloud, and Land Elevation Satellite (ICESat)-based results show a thickness reduction over perennial sea ice (ice that survives at least one melt season with an age of no
Yilin Liu +5 more
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The sea ice thickness distribution in the northwestern Weddell Sea
Journal of Geophysical Research: Oceans, 1991We present new data on distribution of snow and sea ice thicknesses in the northwestern Weddell Sea. The data were obtained through direct measurements along 19 profiles, each approximately 100 m long on 17 different floes located between 54°–46°W and 59°–64°S.
Hajo Eicken, Manfred A. Lange
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Improved sea-ice prediction in the Weddell Sea using sea-ice thickness initialization
2021<p>Skillful sea-ice prediction in the Antarctic Ocean remains a big challenge due to paucity of sea-ice observations and insufficient representation of sea-ice processes in climate models. This study demonstrates that the Antarctic sea-ice concentration (SIC) prediction is significantly improved using a coupled general circulation model ...
Yushi Morioka +4 more
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The thickness variable in sea‐ice models
Atmosphere-Ocean, 1998Abstract The thickness distribution function is considered a fundamental state variable for sea‐ice. However, certain assumptions are implicit in its use. Based largely on observations, we estimate upper and lower bounds on the spatial scale for which the usual interpretation of the thickness distrbituion function is valid. These scales turn out to be ∼
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Improving sea-ice cover and SST forecasts by sea-ice thickness initialization
2020<p>A substantial amount of subseasonal-to-seasonal sea-ice variability is potentially predictable, but improved model biases and initialization techniques are needed to realize this potential. Forecasts for other Earth System components can be expected to benefit from improved sea-ice forecasts as well, because the presence of ...
Steffen Tietsche +5 more
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Sea-ice thickness and mass at Ice Station Belgica, Bellingshausen Sea, Antarctica
Deep Sea Research Part II: Topical Studies in Oceanography, 2011Abstract Ice Station Belgica was commenced in late winter 2007 in the Bellingshausen Sea as part of Sea Ice Mass Balance in Antarctica (SIMBA), an IPY 2007 cruise on the research vessel N.B. Palmer. A primary objective was to build on the work of previous Antarctic drift station experiments to geophysically characterize sea ice in terms of thickness,
Blake Weissling +3 more
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Arctic sea ice extent and thickness
2019Current knowledge on Arctic sea ice extent and thickness variability is reviewed, and we examine whether measurements to date provide evidence for the impact of climate change. The total Arctic ice extent has shown a small but significant reduction of (2.1 ± 0.9)% during the period 1978-87, after apparently increasing from a lower level in the early ...
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Evolution of the thickness distribution of ice in the sea of Japan [PDF]
Izvestiya, Atmospheric and Oceanic Physics, 2006 Simple mathematical models of the thermodynamics of the ice-cover thickness and the thermodynamics of the area of an individual ice floe are proposed. The equations of the models allow for an explicit consideration of the spatial boundedness of the seawater region containing ice covers.
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