Results 21 to 30 of about 902,814 (336)
A New Remotely Operated Sensor Platform for Interdisciplinary Observations under Sea Ice
Frontiers in Marine Science, 2017 Observation of the climate and ecosystem of ice covered polar seas is a timely task for the scientific community. The goal is to assess the drastic and imminent changes of the polar sea ice cover induced by climate change. Retreating and thinning sea ice
Christian Katlein +5 more
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IEEE Access, 2020 Texture in synthetic aperture radar (SAR) images is a combination of the intrinsic texture of scene backscattering and the texture due to noncoherent high-frequency multiplicative noise (HMN) interactions that reflect erroneous information and lead to ...
Iman Heidarpour Shahrezaei +1 more
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Remote Sensing, 2019 The giant tabular iceberg A68 broke away from the Larsen C Ice Shelf, Antarctic Peninsula, in July 2017. The evolution of A68 would have been affected by both the Larsen C Ice Shelf, the surrounding sea ice, and the nearby shallow seafloor. In this study,
Hyangsun Han +4 more
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2018 Static and kinetic friction play a fundamental role in sea-ice mechanics. The coefficient of static friction increases with hold time under normal load and is modelled in terms of creep and fracture of asperities in contact. The coefficient of kinetic friction exhibits velocity strengthening at lower speeds and velocity weakening at intermediate speeds.
openaire +2 more sources
In Situ Experimental Study of the Friction of Sea Ice and Steel on Sea Ice [PDF]
Applied Sciences, 2018 The kinetic coefficient of friction μk was measured for sea ice, stainless steel, and coated steel sliding on a natural sea ice cover. The effects of normal stress (3.10–8.11 kPa), ice columnar grain orientation (vertical and parallel to the sliding direction), sliding velocity (0.02–2.97 m·s–1), and contact material were investigated.
Wang, Qingkai +4 more
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Evaluation of Matching Costs for High-Quality Sea-Ice Surface Reconstruction from Aerial Images
Remote Sensing, 2019 Satellite remote sensing can be used effectively with a wide coverage and repeatability in large-scale Arctic sea-ice analysis. To produce reliable sea-ice information, satellite remote-sensing methods should be established and validated using accurate ...
Jae-In Kim +3 more
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The bimodality of the East Siberian fast ice extent: mechanisms and changes
Annals of Glaciology, 2023 Using operational sea-ice maps, we provide first insight into the seasonal evolution of fast ice in the East Siberian Sea for the period between 1999 and 2021.
Valeria Selyuzhenok +4 more
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The impact of a seasonally ice free Arctic Ocean on the temperature, precipitation and surface mass balance of Svalbard [PDF]
, 2012 The observed decline in summer sea ice extent since the 1970s is predicted to continue until the Arctic Ocean is seasonally ice free during the 21st Century. This will lead to a much perturbed Arctic climate with large changes in ocean surface energy flux.
Bamber, Jonathan L +3 more
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Sensors, 2019 Observing sea ice by very high-resolution (VHR) images not only improves the quality of lower-resolution remote sensing products (e.g., sea ice concentration, distribution of melt ponds and pressure ridges, sea ice surface roughness, etc.) by providing ...
Chang-Uk Hyun +3 more
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