Results 301 to 310 of about 133,709 (318)
Some of the next articles are maybe not open access.
Estimating the thickness of sea ice
Journal of Geophysical Research: Oceans, 1989Sea ice freeboard, thickness, and snow depth were measured from a series of closely spaced (5 to 10 m) drill hole sites from five free‐floating multiyear ice floes in the Beaufort Sea during the spring of 1986 and 1987. A regression of ice thickness on ice draft was performed on the data from each floe and for the combined data set.
Robert H. Bourke, Robert G. Paquette
openaire +2 more sources
The thickness distribution of sea ice
Journal of Geophysical Research, 1975The polar oceans contain sea ice of many thicknesses ranging from open water to thick pressure ridges. Since many of the physical properties of the ice depend upon its thickness, it is natural to expect its large-scale geophysical properties to depend on the relative abundance of the various ice types.
A. S. Thorndike +3 more
openaire +2 more sources
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
openaire +2 more sources
Sea ice deformation and sea ice thickness change
2022The Arctic Ocean is undergoing a major transition from a year-round sea ice cover to ice-free summers with global consequences. Sea ice thickness is at the center of the ongoing changes because the thickness regulates key processes of the Arctic climate system and in the last six decades, the mean thickness has more than halved.
openaire +1 more source
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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
openaire +2 more sources
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 ∼
openaire +2 more sources
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
openaire +2 more sources