Results 1 to 10 of about 34,383 (208)

Use of satellite data for detecting icebergs and evaluating the iceberg threats

open access: yesЛëд и снег, 2018
Te methods of satellite monitoring of dangerous ice formations, namely icebergs in the Arctic seas, representing a threat to the safety of navigation and economic activity on the Arctic shelf are considered.
I. A. Bychkova, V. G. Smirnov
doaj   +3 more sources

Automated ArcticDEM iceberg detection tool: insights into area and volume distributions, and their potential application to satellite imagery and modelling of glacier–iceberg–ocean systems [PDF]

open access: yesThe Cryosphere, 2023
Iceberg calving accounts for up to half of mass loss from the Greenland Ice Sheet (GrIS), with their size distributions providing insights into glacier calving dynamics and impacting fjord environments through their melting and subsequent freshwater ...
C. J. Shiggins, J. M. Lea, S. Brough
doaj   +1 more source

Automatic delineation of cracks with Sentinel-1 interferometry for monitoring ice shelf damage and calving [PDF]

open access: yesThe Cryosphere, 2022
Monitoring the evolution of ice shelf damage such as crevasses and rifts is important for a better understanding of the mechanisms controlling the breakup of ice shelves and for improving predictions about iceberg calving and ice shelf disintegration ...
L. Libert, J. Wuite, T. Nagler
doaj   +1 more source

Iceberg drift and melting rates in the northwestern Weddell Sea, Antarctica: Novel automated regional estimates through machine learning [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2022
Global warming and its consequences on polar regions have been thoroughly discussed in recent times. One of those consequences is the freshwater flux and the associated cooling and freshening that result from iceberg melting. Despite the potential impact,
MAURO M. BARBAT, MAURICIO M. MATA
doaj   +1 more source

A comparison of constant false alarm rate object detection algorithms for iceberg identification in L- and C-band SAR imagery of the Labrador Sea [PDF]

open access: yesThe Cryosphere, 2023
In this study, we pursue two objectives: first, we compare six different “constant false alarm rate” (CFAR) algorithms for iceberg detection in SAR images, and second, we investigate the effect of radar frequency by comparing the detection performance at
L. Færch   +4 more
doaj   +1 more source

On the Detection and Long-Term Path Visualisation of A-68 Iceberg

open access: yesRemote Sensing, 2021
The article presents a methodology for examining a temporal sequence of synthetic aperture radar (SAR) images, as applied to the detection of the A-68 iceberg and its drifting trajectory.
Ludwin Lopez-Lopez   +3 more
doaj   +1 more source

A Computational Framework for Iceberg and Ship Discrimination: Case Study on Kaggle Competition

open access: yesIEEE Access, 2020
Iceberg and ship identification in satellite synthetic aperture radar (SAR) data plays an important role in offering an operational iceberg surveillance program.
Xulei Yang, Jie Ding
doaj   +1 more source

Detailed Lacustrine Calving Iceberg Inventory from Very High Resolution Optical Imagery and Object-Based Image Analysis

open access: yesRemote Sensing, 2020
In the field of iceberg and glacier calving studies, it is important to collect comprehensive datasets of populations of icebergs. Particularly, calving of lake-terminating glaciers has been understudied.
Julian Podgórski, Michał Pętlicki
doaj   +1 more source

Multi-band SAR intercomparison study in the Antarctic Peninsula for sea ice and iceberg detection

open access: yesFrontiers in Marine Science, 2023
Synthetic aperture radar (SAR) systems are one of the best resources to gather information in polar environments, but the detection and monitoring of sea ice types and icebergs using them is still a challenge. Limitations using single-frequency images in
Constanza S. Salvó   +2 more
doaj   +1 more source

Estimation of the volume of icebergs calved from the outlet glaciers of the Severnaya Zemlya archipelago for 2014–2019

open access: yesЛëд и снег, 2021
Volume of icebergs calved from the output glaciers located on the Northern Land during 2014–2019 was estimated using the satellite information. High-resolution satellite data were obtained in the visible spectral range from the non-commercial satellites ...
I. A. Bychkova, V. G. Smirnov
doaj   +1 more source

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