Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Grinsted P"'
Publikováno v:
The Cryosphere, Vol 18, Pp 1947-1957 (2024)
Ice fractures when subject to stress that exceeds the material failure strength. Previous studies have found that a von Mises failure criterion, which places a bound on the second invariant of the deviatoric stress tensor, is consistent with empirica
Externí odkaz:
https://doaj.org/article/b475569cb8f24603af0be125712f1fcf
Autor:
Rufibach, Kaspar, Grinsted, Lynda, Li, Jiang, Weber, Hans-Jochen, Zheng, Cheng, Zhou, Jiangxiu
For the analysis of a time-to-event endpoint in a single-arm or randomized clinical trial it is generally perceived that interpretation of a given estimate of the survival function, or the comparison between two groups, hinges on some quantification
Externí odkaz:
http://arxiv.org/abs/2206.05216
Autor:
David A. Lilien, Nicholas M. Rathmann, Christine S. Hvidberg, Aslak Grinsted, M. Reza Ershadi, Reinhard Drews, Dorthe Dahl-Jensen
Publikováno v:
Journal of Glaciology, Vol 69, Pp 2007-2026 (2023)
Ice-crystal fabric can induce mechanical anisotropy that significantly affects flow, but ice-flow models generally do not include fabric development or its effect upon flow. Here, we incorporate a new spectral expansion of fabric, and more complete d
Externí odkaz:
https://doaj.org/article/4f5e29f2070b4296988606c2ae08e9fa
Autor:
Mikkel Lauritzen, Guðfinna Aðalgeirsdóttir, Nicholas Rathmann, Aslak Grinsted, Brice Noël, Christine S. Hvidberg
Publikováno v:
Annals of Glaciology, Vol 64, Pp 268-275 (2023)
The Greenland Ice Sheet has become an increasingly larger contributor to sea level rise in the past two decades and is projected to continue to lose mass. Climate variability is expected to increase under future warming, but the effect of climate var
Externí odkaz:
https://doaj.org/article/e2572bac4f4a46c5bf4ff114fef14f9d
Publikováno v:
PLoS ONE, Vol 19, Iss 11, p e0312586 (2024)
Scientific advances are historically linked to colonial actions of past empires resulting in knowledge production biased towards the West with minimal representation of scholars of other ethnicities than White in science curricula in Higher Education
Externí odkaz:
https://doaj.org/article/6e87fa7720cc4a2b84764695127b3e29
Autor:
Tamara Annina Gerber, David A. Lilien, Nicholas Mossor Rathmann, Steven Franke, Tun Jan Young, Fernando Valero-Delgado, M. Reza Ershadi, Reinhard Drews, Ole Zeising, Angelika Humbert, Nicolas Stoll, Ilka Weikusat, Aslak Grinsted, Christine Schøtt Hvidberg, Daniela Jansen, Heinrich Miller, Veit Helm, Daniel Steinhage, Charles O’Neill, John Paden, Siva Prasad Gogineni, Dorthe Dahl-Jensen, Olaf Eisen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract The dynamic mass loss of ice sheets constitutes one of the biggest uncertainties in projections of ice-sheet evolution. One central, understudied aspect of ice flow is how the bulk orientation of the crystal orientation fabric translates to
Externí odkaz:
https://doaj.org/article/f6cdc922dc5d4ebfb3c7320e213b5efe
Akademický článek
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Autor:
Aslak Grinsted, Christine S. Hvidberg, David A. Lilien, Nicholas M. Rathmann, Nanna B. Karlsson, Tamara Gerber, Helle Astrid Kjær, Paul Vallelonga, Dorthe Dahl-Jensen
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-4 (2022)
A new study finds that the North East Greenland ice stream is not as stable as previously thought and that this will affect its future evolution.
Externí odkaz:
https://doaj.org/article/2ead4269b9444a59ae8f9b93754e57e5
Autor:
F. M. Oraschewski, A. Grinsted
Publikováno v:
The Cryosphere, Vol 16, Pp 2683-2700 (2022)
In the accumulation zone of glaciers and ice sheets snow is transformed into glacial ice by firn densification. Classically, this process is assumed to solely depend on temperature and overburden pressure, which is controlled by the accumulation rate
Externí odkaz:
https://doaj.org/article/fe73e6884bcf40b4aed8003a89d8bce3
Autor:
J. K. Andersen, N. Rathmann, C. S. Hvidberg, A. Grinsted, A. Kusk, J. P. Merryman Boncori, J. Mouginot
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 12, Pp n/a-n/a (2023)
Abstract Subglacial hydrology can exert an important control on ice flow by affecting friction at the ice‐bedrock interface. Here, we report on a series of subglacial drainage events along the Northeast Greenland Ice Stream (NEGIS), initiating as f
Externí odkaz:
https://doaj.org/article/6dc846118fab493db28b483b15fb3153