Results 11 to 20 of about 5,053 (213)

Large-scale investigation into iceberg-tsunamis generated by various iceberg calving mechanisms [PDF]

Coastal Engineering, 2021
Abstract Mass balance analysis of ice sheets is a key component to understand the effects of global warming with iceberg calving as a significant contributor. Calving recently generated tsunamis of up to 50 m in amplitude endangering human beings and coastal infrastructure.
Heller, Valentin, Attili, Tommaso, Chen, Fan, Gabl, Roman, Wolters, Guido   +4 more
openaire   +4 more sources

Iceberg Calving: Regimes and Transitions

Annual Review of Earth and Planetary Sciences, 2023
Uncertainty about sea-level rise is dominated by uncertainty about iceberg calving, mass loss from glaciers or ice sheets by fracturing. Review of the rapidly growing calving literature leads to a few overarching hypotheses. Almost all calving occurs near or just downglacier of a location where ice flows into an environment more favorable for calving ...
R.B. Alley, K.M. Cuffey, J.N. Bassis, K.E. Alley, S. Wang, B.R. Parizek, S. Anandakrishnan, K. Christianson, R.M. DeConto   +8 more
openaire   +3 more sources

A 15-year circum-Antarctic iceberg calving dataset derived from continuous satellite observations [PDF]

Earth System Science Data, 2021
Iceberg calving is the main process that facilitates the dynamic mass loss of ice sheets into the ocean, which accounts for approximately half of the mass loss of the Antarctic ice sheet.
M. Qi, M. Qi, M. Qi, Y. Liu, Y. Liu, Y. Liu, J. Liu, X. Cheng, X. Cheng, X. Cheng, Y. Lin, Q. Feng, Q. Shen, Q. Shen, Z. Yu   +14 more
doaj   +3 more sources

Calving seismicity from iceberg–sea surface interactions [PDF]

Journal of Geophysical Research: Earth Surface, 2012
Iceberg calving is known to release substantial seismic energy, but little is known about the specific mechanisms that produce calving icequakes. At Yahtse Glacier, a tidewater glacier on the Gulf of Alaska, we draw upon a local network of seismometers and focus on 80 hours of concurrent, direct observation of the terminus to show that calving is the ...
T. C. Bartholomaus, C. F. Larsen, S. O'Neel, M. E. West   +3 more
openaire   +3 more sources

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

Remote 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   +3 more sources

Evaluation of Iceberg Calving Models Against Observations From Greenland Outlet Glaciers

Journal of Geophysical Research: Earth Surface, 2020
AbstractFrontal ablation processes at marine‐terminating glaciers are challenging to observe and difficult to represent in numerical ice flow models, yet play critical roles in modulating ice sheet mass balance. Current ice sheet models typically rely on simple iceberg calving models to prescribe either terminus positions or iceberg calving rates, but ...
Tristan Amaral, Timothy C. Bartholomaus, Ellyn M. Enderlin   +2 more
openaire   +4 more sources

BREAK OUT OF A-76 ICEBERG AND RECENT DYNAMIC CHANGES OF ITS ENCOLSURE RIFTS IN RONNE ICE SHELF, ANTARCTICA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Monitoring the stability of the Ronne Ice Shelf, particularly the calving event, is an integral and important part of the study of Antarctic ice sheet mass balance and sea-level rise. This paper presents the results of the analysis of the world’s largest
A. Zhao, A. Zhao, Y. Cheng, Y. Cheng, D. Lv, D. Lv, M. Xia, M. Xia, R. Li, R. Li, L. An, L. An, S. Liu, S. Liu, Y. Tian, Y. Tian   +15 more
doaj   +1 more source

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]

The 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

Fragmentation theory reveals processes controlling iceberg size distributions

Journal of Glaciology, 2021
Iceberg calving strongly controls glacier mass loss, but the fracture processes leading to iceberg formation are poorly understood due to the stochastic nature of calving.
Jan Åström, Sue Cook, Ellyn M. Enderlin, David A. Sutherland, Aleksandra Mazur, Neil Glasser   +5 more
doaj   +1 more source

Identification of iceberg-forming ice quakes from seismic and infrasound data

Лëд и снег, 2021
The application of a joint method of recording seismic and infrasound signals generated during ice calving from the terminal part of the outlet glaciers to identify the process of iceberg formation is considered.
Yu. A. Vinogradov, A. V. Fedorov, S. V. Baranov, V. E. Asming, I. S. Fedorov   +4 more
doaj   +1 more source