Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Iceberg calving"'
Autor:
Chris Bézu, Timothy C. Bartholomaus
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 21, Pp n/a-n/a (2024)
Abstract At least three primary iceberg calving styles have been identified in Greenland: serac collapse, which produces falling icebergs tens of meters in length; slab capsize, which produces rotating icebergs hundreds of meters in length; and tabul
Externí odkaz:
https://doaj.org/article/8e1eaa077df649d3af1dcdb61a309dad
Publikováno v:
Annals of Glaciology, Vol 64, Pp 170-180 (2023)
At any one time 130 000 icebergs are afloat in the Southern Ocean; 97% of these are too small to be registered in current satellite-based databases, yet the melting of these small icebergs provides a major input to the Southern Ocean. We use a unique
Externí odkaz:
https://doaj.org/article/9dfa9665f2d1468fbfaa0416f230d5e4
Publikováno v:
AGU Advances, Vol 5, Iss 1, Pp n/a-n/a (2024)
Abstract The Antarctic ice sheet is buttressed by floating ice shelves that calve icebergs along large fractures called rifts. Despite the significant influence exerted by rifting on ice shelf geometry and buttressing, the scarcity of in situ observa
Externí odkaz:
https://doaj.org/article/fd13d334cb9e4b3eb5311c62eaf85c59
Autor:
Nicole Abib, David A. Sutherland, Jason M. Amundson, Dan Duncan, Emily F. Eidam, Rebecca H. Jackson, Christian Kienholz, Mathieu Morlighem, Roman J. Motyka, Jonathan D. Nash, Bridget Ovall, Erin C. Pettit
Publikováno v:
Annals of Glaciology, Vol 64, Pp 1-12 (2023)
Frontal ablation, the combination of submarine melting and iceberg calving, changes the geometry of a glacier's terminus, influencing glacier dynamics, the fate of upwelling plumes and the distribution of submarine meltwater input into the ocean. Dir
Externí odkaz:
https://doaj.org/article/8a724f67bdcd4b6bb16595b09e827016
Publikováno v:
Journal of Glaciology, Vol 68, Pp 1117-1126 (2022)
Tidewater glaciers have been observed to experience instantaneous, stepwise increases in velocity during iceberg-calving events due to a loss of resistive stresses. These changes in stress can potentially impact tidewater glacier stability by promoti
Externí odkaz:
https://doaj.org/article/601fb9e53cd4470080b772b17365eb6b
Autor:
Oskar Glowacki
Publikováno v:
Journal of Glaciology, Vol 68, Pp 1185-1196 (2022)
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task. Recent results have demonstrated the eff
Externí odkaz:
https://doaj.org/article/d9f39f2f1fae41f7b895c555e343e68c
Autor:
Brandon Berg, Jeremy Bassis
Publikováno v:
Journal of Glaciology, Vol 68, Pp 977-986 (2022)
Iceberg calving, the process where icebergs detach from glaciers, remains poorly understood. Moreover, few parameterizations of the calving process can easily be integrated into numerical models to accurately capture observations, resulting in large
Externí odkaz:
https://doaj.org/article/e235959c5b3940da8890db3fe7373769
Publikováno v:
Journal of Glaciology, Vol 68, Pp 987-998 (2022)
Inaccurate representations of iceberg calving from ice shelves are a large source of uncertainty in mass-loss projections from the Antarctic ice sheet. Here, we address this limitation by implementing and testing a continuum damage-mechanics model in
Externí odkaz:
https://doaj.org/article/f2b4392495ad4a0fb49bfb2a3936afee
Akademický článek
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Autor:
Sierra M. Melton, Richard B. Alley, Sridhar Anandakrishnan, Byron R. Parizek, Michael G. Shahin, Leigh A. Stearns, Adam L. LeWinter, David C. Finnegan
Publikováno v:
Journal of Glaciology, Vol 68, Pp 812-828 (2022)
Marine-terminating glaciers lose mass through melting and iceberg calving, and we find that meltwater drainage systems influence calving timing at Helheim Glacier, a tidewater glacier in East Greenland. Meltwater feeds a buoyant subglacial discharge
Externí odkaz:
https://doaj.org/article/65f79e3e50184fefa7f84ccf950914f8