Zobrazeno 1 - 10
of 208
pro vyhledávání: '"S A, Jamieson"'
Autor:
C. M. Carter, M. J. Bentley, S. S. R. Jamieson, G. J. G. Paxman, T. A. Jordan, J. A. Bodart, N. Ross, F. Napoleoni
Publikováno v:
The Cryosphere, Vol 18, Pp 2277-2296 (2024)
The subglacial landscape of Antarctica records and influences the behaviour of its overlying ice sheet. However, in many places, the evolution of the landscape and its control on ice sheet behaviour have not been investigated in detail. Using recentl
Externí odkaz:
https://doaj.org/article/536126f5869249a0808be9f2eef1203d
Publikováno v:
The Cryosphere, Vol 18, Pp 1733-1751 (2024)
Landscapes buried beneath the Antarctic Ice Sheet preserve information about the geologic and geomorphic evolution of the continent both before and during the wide-scale glaciation that began roughly 34×106 years ago. Since the inception of this ice
Externí odkaz:
https://doaj.org/article/0c277d695b1e44839d5d9efb1b765aef
Publikováno v:
The Cryosphere, Vol 18, Pp 1467-1493 (2024)
The Greenland Ice Sheet is a key contributor to contemporary global sea level rise, but its long-term history and response to episodes of warming in Earth's geological past remain uncertain. The terrain covered by the ice sheet comprises ∼ 79 % of
Externí odkaz:
https://doaj.org/article/753c2e16a13246f7ad1dc99329129a32
Autor:
Stewart S. R. Jamieson, Neil Ross, Guy J. G. Paxman, Fiona J. Clubb, Duncan A. Young, Shuai Yan, Jamin Greenbaum, Donald D. Blankenship, Martin J. Siegert
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract The East Antarctic Ice Sheet (EAIS) has its origins ca. 34 million years ago. Since then, the impact of climate change and past fluctuations in the EAIS margin has been reflected in periods of extensive vs. restricted ice cover and the modif
Externí odkaz:
https://doaj.org/article/6055859aefcc4f1c87517a5b85bbf38e
Publikováno v:
The Cryosphere, Vol 17, Pp 3593-3616 (2023)
Wilkes Land, East Antarctica, has been losing mass at an accelerating rate over recent decades in response to enhanced oceanic forcing. Overlying the Aurora Subglacial Basin, it has been referred to as the “weak underbelly” of the East Antarctic
Externí odkaz:
https://doaj.org/article/c9ab9a6fd06a4fa887fd38fb61edd5d3
Autor:
M. J. Bentley, J. A. Smith, S. S. R. Jamieson, M. R. Lindeman, B. R. Rea, A. Humbert, T. P. Lane, C. M. Darvill, J. M. Lloyd, F. Straneo, V. Helm, D. H. Roberts
Publikováno v:
The Cryosphere, Vol 17, Pp 1821-1837 (2023)
The Northeast Greenland Ice Stream has recently seen significant change to its floating margins and has been identified as vulnerable to future climate warming. Inflow of warm Atlantic Intermediate Water (AIW) from the continental shelf has been obse
Externí odkaz:
https://doaj.org/article/f4dcc2b991394608beb265d728a98568
Autor:
James R. Jordan, B. W. J. Miles, G. H. Gudmundsson, S. S. R. Jamieson, A. Jenkins, C. R. Stokes
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)
The East Antarctic Ice Sheet is currently surrounded by relatively cool water but changes in ocean dynamics may lead to warmer ocean water on the shelf in the future. This has the potential to dramatically increase its future sea level contribution.
Externí odkaz:
https://doaj.org/article/7fb4a2a2d972401698a3ab2887a2c096
Autor:
J. A. Smith, L. Callard, M. J. Bentley, S. S. R. Jamieson, M. L. Sánchez-Montes, T. P. Lane, J. M. Lloyd, E. L. McClymont, C. M. Darvill, B. R. Rea, C. O'Cofaigh, P. Gulliver, W. Ehrmann, R. S. Jones, D. H. Roberts
Publikováno v:
The Cryosphere, Vol 17, Pp 1247-1270 (2023)
Nioghalvfjerdsbrae, or 79∘ N Glacier, is the largest marine-terminating glacier draining the Northeast Greenland Ice Stream (NEGIS). In recent years, its ∼ 70 km long fringing ice shelf (hereafter referred to as the 79∘ N ice shelf) has thinned
Externí odkaz:
https://doaj.org/article/3784211a5db74b23922401da96df296a
Publikováno v:
The Cryosphere, Vol 17, Pp 445-456 (2023)
Around large parts of West Antarctica and in Wilkes Land, East Antarctica, increased wind-forced intrusions of modified Circumpolar Deep Water (mCDW) onto the continental shelf have been associated with mass loss over the last few decades. Despite co
Externí odkaz:
https://doaj.org/article/ce80afe5b34549b598ca3ee611dd2702
Autor:
James R. Jordan, G. Hilmar Gudmundsson, Adrian Jenkins, Chris R. Stokes, Bertie W. J. Miles, Stewart S. R. Jamieson
Publikováno v:
Journal of Glaciology, Vol 68, Pp 473-485 (2022)
The Wilkes Subglacial Basin in East Antarctica contains ice equivalent to 3–4 m of global mean sea level rise and is primarily drained by Cook Glacier. Of concern is that recent observations (since the 1970s) show an acceleration in ice speed over
Externí odkaz:
https://doaj.org/article/81c0b551f1d3426ea3db20e6762d6fc5