Zobrazeno 1 - 10
of 1 759
pro vyhledávání: '"J. Kohler"'
Autor:
C. Bouchayer, U. Nanni, P.-M. Lefeuvre, J. Hult, L. Steffensen Schmidt, J. Kohler, F. Renard, T. V. Schuler
Publikováno v:
The Cryosphere, Vol 18, Pp 2939-2968 (2024)
The flow of glaciers is largely controlled by changes at the ice–bed interface, where basal slip and sediment deformation drive basal glacier motion. Determining subglacial conditions and their responses to hydraulic forcing remains challenging due
Externí odkaz:
https://doaj.org/article/2ed7c59c1e9442598e58df2f291668a0
Autor:
A. Spolaor, F. Scoto, C. Larose, E. Barbaro, F. Burgay, M. P. Bjorkman, D. Cappelletti, F. Dallo, F. de Blasi, D. Divine, G. Dreossi, J. Gabrieli, E. Isaksson, J. Kohler, T. Martma, L. S. Schmidt, T. V. Schuler, B. Stenni, C. Turetta, B. Luks, M. Casado, J.-C. Gallet
Publikováno v:
The Cryosphere, Vol 18, Pp 307-320 (2024)
The Svalbard archipelago is particularly sensitive to climate change due to the relatively low altitude of its main ice fields and its geographical location in the higher North Atlantic, where the effect of Arctic amplification is more significant. T
Externí odkaz:
https://doaj.org/article/f6d1716dcd5f415086dff9eb6327af56
Publikováno v:
The Cryosphere, Vol 17, Pp 4021-4045 (2023)
We present a novel thickness inversion approach that leverages satellite products and state-of-the-art ice flow models to produce distributed maps of sub-glacial topography consistent with the dynamic state of a given glacier. While the method can us
Externí odkaz:
https://doaj.org/article/7eb04604c62c47779640f4261612987d
Autor:
A. C. Frémand, P. Fretwell, J. A. Bodart, H. D. Pritchard, A. Aitken, J. L. Bamber, R. Bell, C. Bianchi, R. G. Bingham, D. D. Blankenship, G. Casassa, G. Catania, K. Christianson, H. Conway, H. F. J. Corr, X. Cui, D. Damaske, V. Damm, R. Drews, G. Eagles, O. Eisen, H. Eisermann, F. Ferraccioli, E. Field, R. Forsberg, S. Franke, S. Fujita, Y. Gim, V. Goel, S. P. Gogineni, J. Greenbaum, B. Hills, R. C. A. Hindmarsh, A. O. Hoffman, P. Holmlund, N. Holschuh, J. W. Holt, A. N. Horlings, A. Humbert, R. W. Jacobel, D. Jansen, A. Jenkins, W. Jokat, T. Jordan, E. King, J. Kohler, W. Krabill, M. Kusk Gillespie, K. Langley, J. Lee, G. Leitchenkov, C. Leuschen, B. Luyendyk, J. MacGregor, E. MacKie, K. Matsuoka, M. Morlighem, J. Mouginot, F. O. Nitsche, Y. Nogi, O. A. Nost, J. Paden, F. Pattyn, S. V. Popov, E. Rignot, D. M. Rippin, A. Rivera, J. Roberts, N. Ross, A. Ruppel, D. M. Schroeder, M. J. Siegert, A. M. Smith, D. Steinhage, M. Studinger, B. Sun, I. Tabacco, K. Tinto, S. Urbini, D. Vaughan, B. C. Welch, D. S. Wilson, D. A. Young, A. Zirizzotti
Publikováno v:
Earth System Science Data, Vol 15, Pp 2695-2710 (2023)
One of the key components of this research has been the mapping of Antarctic bed topography and ice thickness parameters that are crucial for modelling ice flow and hence for predicting future ice loss and the ensuing sea level rise. Supported by the
Externí odkaz:
https://doaj.org/article/dd829658db4441f6ba419561af31ff15
Publikováno v:
The Cryosphere, Vol 16, Pp 2115-2126 (2022)
The 26 km long tidewater glacier Tunabreen is the most frequently surging glacier in Svalbard, with four documented surges in the past 100 years. We model the evolution of this glacier with a minimal glacier model (MGM), in which ice mechanics, calvi
Externí odkaz:
https://doaj.org/article/11b6855316454a9d8ab9970caf5528b3
Autor:
Brice Noël, C. L. Jakobs, W. J. J. van Pelt, S. Lhermitte, B. Wouters, J. Kohler, J. O. Hagen, B. Luks, C. H. Reijmer, W. J. van de Berg, M. R. van den Broeke
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
Svalbard glaciers are among the lowest ice masses in the Arctic, with a peak in glacier area below 450 m elevation. Using a high-resolution climate model, here the authors show that a modest warming in the mid-1980s propagated meltwater runoff above
Externí odkaz:
https://doaj.org/article/1e271ff961d040389b45c650d39fac9a
Autor:
W. van Pelt, V. Pohjola, R. Pettersson, S. Marchenko, J. Kohler, B. Luks, J. O. Hagen, T. V. Schuler, T. Dunse, B. Noël, C. Reijmer
Publikováno v:
The Cryosphere, Vol 13, Pp 2259-2280 (2019)
The climate in Svalbard is undergoing amplified change compared to the global mean. This has major implications for runoff from glaciers and seasonal snow on land. We use a coupled energy balance–subsurface model, forced with downscaled regional cl
Externí odkaz:
https://doaj.org/article/d397737ac10946f49aff67cac3d49cd3
Autor:
K. Lindbäck, J. Kohler, R. Pettersson, C. Nuth, K. Langley, A. Messerli, D. Vallot, K. Matsuoka, O. Brandt
Publikováno v:
Earth System Science Data, Vol 10, Pp 1769-1781 (2018)
Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts become land-terminating. Knowledge of the subglacial topography and bathymetry under retreating glaciers is important to modelling f
Externí odkaz:
https://doaj.org/article/9db04b01e18243fba6866f8c291ba936
Autor:
D. Vallot, J. Åström, T. Zwinger, R. Pettersson, A. Everett, D. I. Benn, A. Luckman, W. J. J. van Pelt, F. Nick, J. Kohler
Publikováno v:
The Cryosphere, Vol 12, Pp 609-625 (2018)
In this paper, we study the effects of basal friction, sub-aqueous undercutting and glacier geometry on the calving process by combining six different models in an offline-coupled workflow: a continuum–mechanical ice flow model (Elmer/Ice), a cl
Externí odkaz:
https://doaj.org/article/5df32f1317f042608b0f2469387de493
Autor:
P. How, D. I. Benn, N. R. J. Hulton, B. Hubbard, A. Luckman, H. Sevestre, W. J. J. van Pelt, K. Lindbäck, J. Kohler, W. Boot
Publikováno v:
The Cryosphere, Vol 11, Pp 2691-2710 (2017)
Subglacial hydrological processes at tidewater glaciers remain poorly understood due to the difficulty in obtaining direct measurements and lack of empirical verification for modelling approaches. Here, we investigate the subglacial hydrology of K
Externí odkaz:
https://doaj.org/article/dd6a924b9c964e9d9575fc509bde7b1d