Results 51 to 60 of about 197,109 (229)

Improvement of Sea Ice Drift Extraction Based on Feature Tracking from C-SAR/01 Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this study, the extraction of sea ice drift from imagery captured by the 1-meter C-SAR 01 satellite (C-SAR/01) was facilitated utilizing the oriented fast and rotated brief algorithm within the feature tracking procedure, thus addressing the ...
Yanli Yang   +5 more
doaj   +1 more source

Seismic stratigraphy and history of deep circulation and sediment drift development in Baffin Bay and the Labrador Sea [PDF]

open access: yes, 1989
Drilling results and seismic-reflection records at and across Ocean Drilling Program (ODP) Sites 645 (western Baffin Bay), 646, and 647 (Labrador Sea) provide important constraints on the history of deep-water circulation and sedimentation in response to
Arthur, M.A.   +4 more
core   +1 more source

Nonextensive Dynamics of Drifting Sea Ice [PDF]

open access: yesISRN Oceanography, 2013
Cycles of ice pack fragmentation in the Arctic Ocean are caused by the irregular drift dynamics. In February 2004, the Russian ice-research camp North Pole 32 established on a floe in the Arctic Ocean ceased its working activity and was abandoned after a catastrophic icequake. In this communication, the data collected during the last month of the field
V.N. Smirnov, Alexandre Chmel
openaire   +2 more sources

Virtual radar ice buoys – a method for measuring fine-scale sea ice drift [PDF]

open access: yesThe Cryosphere, 2016
Here we present an algorithm for continuous ice drift estimation based on coastal and ship radar data. The ice drift is estimated for automatically selected ice targets in the images.
J. Karvonen
doaj   +1 more source

Wind Drift, Breakdown, and Pile Up of the Ice Field

open access: yesJournal of Marine Science and Engineering, 2023
This article contains the analytical model of the drift of a separate ice field under the action of wind and current, in which velocities and directions can vary over time.
Vadim K. Goncharov
doaj   +1 more source

Enhanced Delaunay Triangulation Sea Ice Tracking Algorithm with Combining Feature Tracking and Pattern Matching

open access: yesRemote Sensing, 2020
Sea ice drift detection has the key role of global climate analysis and waterway planning. The ability to detect sea ice drift in real-time also contributes to the safe navigation of ships and the prevention of offshore oil platform accidents.
Ming Zhang   +5 more
doaj   +1 more source

Mapping of sea ice and measurement of its drift using aircraft synthetic aperture radar images [PDF]

open access: yes, 1979
Side-looking radar images of Arctic sea ice were obtained as part of the Arctic Ice Dynamics Joint Experiment. Repetitive coverages of a test site in the Arctic were used to measure sea ice drift, employing single images and blocks of overlapping radar ...
Bryan, M. L.   +4 more
core   +1 more source

Variability in Arctic sea ice drift [PDF]

open access: yesGeophysical Research Letters, 2004
Analysis of Arctic sea ice drift from 1979–1997 using a Lagrangian perspective shows the complexities of ice drift response to variations in atmospheric conditions. Changes in ice dynamics influence the redistribution of ice, and any transported material, from different source areas.
Ignatius Rigor   +4 more
openaire   +2 more sources

Arctic sea ice drift fields extraction based on feature tracking to MODIS imagery

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Moderate-resolution optical imagery holds great potential in deriving Arctic sea ice drift fields because of its higher resolution than microwave radiometers and scatterometers, as well as its larger swath widths than most other optical and synthetic ...
Yan Fang   +5 more
doaj   +1 more source

An ice drift model for the Baltic Sea [PDF]

open access: yesTellus A: Dynamic Meteorology and Oceanography, 1981
A dynamical model for simulating and forecasting motion of sea ice fields in the Baltic Sea is presented. The model is based on the equations for conservation of mass and momentum and on an equation describing the distribution of ice mass. In the model, ice drift is caused by wind; currents beneath the boundary layer in the sea are neglected.
openaire   +2 more sources

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