Results 51 to 60 of about 5,175 (233)

Intermittent structural weakening and acceleration of the Thwaites Glacier Tongue between 2000 and 2018 [PDF]

open access: yes, 2020
Evolving conditions at the terminus of Thwaites Glacier will be important in determining the rate of its future sea-level contribution over the coming decades.
Gudmundsson, Hilmar   +5 more
core   +6 more sources

Monitoring Greenland ice sheet buoyancy-driven calving discharge using glacial earthquakes

open access: yesAnnals of Glaciology, 2019
Since the 2000s, Greenland ice sheet mass loss has been accelerating, followed by increasing numbers of glacial earthquakes (GEs) at near-grounded glaciers. GEs are caused by calving of km-scale icebergs which capsize against the terminus. Seismic record
Amandine Sergeant   +10 more
doaj   +1 more source

Historical occurrence of Antarctic icebergs within mercantile shipping routes and the exceptional events of the 1890s

open access: yesJournal of Glaciology, 2023
A major consideration for maritime activity in the Southern Hemisphere is the northern limit of icebergs, or the Southern Ocean Limit Of Known Ice (SOLOKI).
Robert Keith Headland   +2 more
doaj   +1 more source

Tracking icebergs with time-lapse photography and sparse optical flow, LeConte Bay, Alaska, 2016–2017 [PDF]

open access: yes, 2019
We present a workflow to track icebergs in proglacial fjords using oblique time-lapse photos and the Lucas-Kanade optical flow algorithm. We employ the workflow at LeConte Bay, Alaska, where we ran five time-lapse cameras between April 2016 and ...
Amundson, Jason M.   +9 more
core   +2 more sources

Calving giant icebergs: old principles, new applications

open access: yesAntarctic Science, 2006
Earth-orbiting satellites can now monitor calving of large icebergs from ice shelves bordering the marine West Antarctic Ice Sheet, and recent calving events have stimulated interest in calving mechanisms. To advance this interest pioneering work in brittle and ductile fracture mechanics is reviewed, leading to a new application to calving of giant ...
Kenneally, James P., Huges, Terence J.
openaire   +3 more sources

Response of Marine‐Terminating Glaciers to Forcing: Time Scales, Sensitivities, Instabilities, and Stochastic Dynamics [PDF]

open access: yes, 2018
Recent observations indicate that many marine‐terminating glaciers in Greenland and Antarctica are currently retreating and thinning, potentially due to long‐term trends in climate forcing.
Haseloff, Marianne   +2 more
core   +2 more sources

Iceberg properties and distributions in three Greenlandic fjords using satellite imagery

open access: yesAnnals of Glaciology, 2017
Icebergs calved from tidewater glaciers represent about one third to one half of the freshwater flux from the Greenland ice sheet to the surrounding ocean. Using multiple satellite datasets, we quantify the first fjord-wide distributions of iceberg sizes
Daniel J. Sulak   +4 more
doaj   +1 more source

Numerical Modeling Shows Increased Fracturing Due to Melt-Undercutting Prior to Major Calving at Bowdoin Glacier

open access: yesFrontiers in Earth Science, 2020
Projections of future ice sheet mass loss and thus sea level rise rely on the parametrization of iceberg calving in ice sheet models. The interconnection between submarine melt-induced undercutting and calving is still poorly understood, which makes ...
Eef C. H. van Dongen   +5 more
doaj   +1 more source

Sensitivity of a calving glacier to ice–ocean interactions under climate change: new insights from a 3-D full-Stokes model [PDF]

open access: yesThe Cryosphere, 2019
Iceberg calving accounts for between 30 % and 60 % of net mass loss from the Greenland Ice Sheet, which has intensified and is now the single largest contributor to global sea level rise in the cryosphere.
J. Todd   +5 more
doaj   +1 more source

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