Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Ice sheet modeling"'
Autor:
Byron R. Parizek
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 15, Pp n/a-n/a (2024)
Abstract Projections of sea‐level rise from ice‐sheet shrinkage in a warming world have large uncertainties, linked to limited knowledge of changes at the ocean‐ice sheet interface. This interface most typically is modeled as a grounding line,
Externí odkaz:
https://doaj.org/article/8527389dcd2a44d7ba11325d9f88fe1f
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract Understanding grounding line dynamics is critical for projecting glacier evolution and sea level rise. Observations from satellite radar interferometry reveal rapid grounding line migration forced by oceanic tides that are several kilometers
Externí odkaz:
https://doaj.org/article/239fe0ae0e3d4e0f9ecc1feac61fd09c
Autor:
Olga Sergienko, Marianne Haseloff
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1483-1499 (2023)
Investigations of the time-dependent behavior of marine ice sheets and their sensitivity to basal conditions require numerical models because existing theoretical analyses focus only on steady-state configurations primarily with a power-law basal she
Externí odkaz:
https://doaj.org/article/9a86a3dfda8d476e843478bf2137dd1a
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1203-1213 (2023)
Increases in ocean temperatures in the Filchner Ronne region of Antarctica are likely to result in increased ice mass loss and sea level rise. We constrain projections of the 21st century sea level contribution of this region using process-based ice-
Externí odkaz:
https://doaj.org/article/cba191b06379474690d06645fa8329f2
Autor:
Diyi Yang, Minghu Ding, Ian Allison, Xiaowei Zou, Xinyan Chen, Petra Heil, Wenqian Zhang, Lingen Bian, Cunde Xiao
Publikováno v:
Journal of Glaciology, Vol 69, Pp 762-772 (2023)
Using data from three automatic weather stations (LGB69, Eagle and Dome A) from distinctly different climatological zones along the CHINARE (Chinese National Antarctic Research Expedition) traverse route from Zhongshan Station to Dome A, we investiga
Externí odkaz:
https://doaj.org/article/3d73d601c430471d83e3920fb055f14b
Autor:
Ed Bueler
Publikováno v:
Journal of Glaciology, Vol 69, Pp 930-935 (2023)
Numerical glacier and ice-sheet models compute evolving ice geometry and velocity fields using various stress-balance approximations and boundary conditions. At high spatial resolution, with horizontal mesh/grid resolutions of a few kilometers or sma
Externí odkaz:
https://doaj.org/article/2fb1f68be37f445da3ab3cf226b62eb3
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1056-1070 (2023)
Spatially variable basal conditions are thought to govern how ice sheets behave at glacial time scales (>1000 years) and responsible for changes in dynamics between the core and peripheral regions of the Laurentide and Fennoscandian ice sheets. Basal
Externí odkaz:
https://doaj.org/article/779fe7048a96419c86cf931a68a14d11
Publikováno v:
Journal of Glaciology, Vol 69, Pp 513-524 (2023)
In this study, we investigate the differences between two transient, three-dimensional, thermomechanically coupled ice-sheet models, namely, a first-order approximation model (FOM) and a ‘full’ Stokes ice-sheet model (FSM) under the same numerica
Externí odkaz:
https://doaj.org/article/19e4c6a248ac4a5f8c253cfbd7c5d1cb
Autor:
Vincent Verjans, Alexander Robel
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 2, Pp n/a-n/a (2024)
Abstract Subglacial drainage networks regulate the response of ice sheet flow to surface meltwater input to the subglacial environment. Simulating subglacial hydrology evolution is critical to projecting ice sheet sensitivity to climate, and contribu
Externí odkaz:
https://doaj.org/article/6b234a05a2e4424fbaa9fad5865476a8
Autor:
Alexios Theofilopoulos, Andreas Born
Publikováno v:
Journal of Glaciology, Vol 69, Pp 311-323 (2023)
The interior of an ice sheet consists of layers of accumulated snow, which contain important information on accumulation and ice dynamics that are imprinted on layer shapes over time. This work describes how changes in accumulation influence the stra
Externí odkaz:
https://doaj.org/article/c26b8005334f494cab2c09878d86f4f4