Results 31 to 40 of about 2,443,175 (254)

Friction of sea ice [PDF]

open access: yesPhilosophical 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

Changes in a Giant Iceberg Created from the Collapse of the Larsen C Ice Shelf, Antarctic Peninsula, Derived from Sentinel-1 and CryoSat-2 Data

open access: yesRemote 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
doaj   +1 more source

Fracture networks in sea ice [PDF]

open access: yesFrontiers in Physics, 2014
Fracturing and refreezing of sea ice in the Kara sea are investigated using complex networkanalysis. By going to the dual network, where the fractures are nodes and their intersectionslinks, we gain access to topological features which are easy to measure and hence comparewith modeled networks.
Jonas Nesland Vevatne   +5 more
openaire   +3 more sources

Ocean Wave Interactions with Sea Ice: A Reappraisal

open access: yesAnnual Review of Fluid Mechanics, 2020
A spectacular resurgence of interest in the topic of ocean wave/sea ice interactions has unfolded over the last two decades, fueled primarily by the deleterious ramifications of global climate change on the polar seas. The Arctic is particularly affected,
V. Squire
semanticscholar   +1 more source

Mosaicking Opportunistically Acquired Very High-Resolution Helicopter-Borne Images over Drifting Sea Ice Using COTS Sensors

open access: yesSensors, 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
doaj   +1 more source

Quantifying the influence of sea ice on ocean microseism using observations from the Bering Sea, Alaska [PDF]

open access: yes, 2011
Microseism is potentially affected by all processes that alter ocean wave heights. Because strong sea ice prevents large ocean waves from forming, sea ice can therefore significantly affect microseism amplitudes.
McNamara, Daniel E., Tsai, Victor C.
core   +1 more source

Microplastics in sea ice and seawater beneath ice floes from the Arctic Ocean

open access: yesScientific Reports, 2020
Within the past decade, an alarm was raised about microplastics in the remote and seemingly pristine Arctic Ocean. To gain further insight about the issue, microplastic abundance, distribution and composition in sea ice cores (n = 25) and waters ...
L. D. Kanhai   +4 more
semanticscholar   +1 more source

Evaluation of Matching Costs for High-Quality Sea-Ice Surface Reconstruction from Aerial Images

open access: yesRemote 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
doaj   +1 more source

ASTER-Derived High-Resolution Ice Surface Temperature for the Arctic Coast

open access: yesRemote Sensing, 2018
Ice surface temperature (IST) controls the rate of sea ice growth and the heat exchange between the atmosphere and ocean. In this study, high-resolution IST using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) thermal infrared
Young-Sun Son   +2 more
doaj   +1 more source

Robust Mosaicking of Lightweight UAV Images Using Hybrid Image Transformation Modeling

open access: yesRemote Sensing, 2020
This paper proposes a robust feature-based mosaicking method that can handle images obtained by lightweight unmanned aerial vehicles (UAVs). The imaging geometry of small UAVs can be characterized by unstable flight attitudes and low flight altitudes ...
Jae-In Kim, Hyun-cheol Kim, Taejung Kim
doaj   +1 more source

Home - About - Disclaimer - Privacy