Zobrazeno 1 - 10
of 16
pro vyhledávání: '"R. D. Larter"'
Autor:
K. A. Hogan, K. L. P. Warburton, A. G. C. Graham, J. A. Neufeld, D. R. Hewitt, J. A. Dowdeswell, R. D. Larter
Publikováno v:
The Cryosphere, Vol 17, Pp 2645-2664 (2023)
Improvements in the resolution of sea-floor mapping techniques have revealed extremely regular, sub-metre-scale ridge landforms produced by the tidal flexure of ice-shelf grounding lines as they retreated very rapidly (i.e. at rates of several kilome
Externí odkaz:
https://doaj.org/article/bfe705dfaee04880802c10530208f5a0
Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica
Autor:
A. P. Lepp, L. M. Simkins, J. B. Anderson, R. W. Clark, J. S. Wellner, C-D. Hillenbrand, J. A. Smith, A. A. Lehrmann, R. Totten, R. D. Larter, K. A. Hogan, F. O. Nitsche, A. G. C. Graham, L. Wacker
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Subglacial meltwater drainage can enhance localized melting along grounding zones and beneath the ice shelves of marine-terminating glaciers. Efforts to constrain the evolution of subglacial hydrology and the resulting influence on ice stability in s
Externí odkaz:
https://doaj.org/article/9b0a3d0346e94846abaa0dff60ef0c58
Autor:
K. A. Hogan, R. D. Larter, A. G. C. Graham, R. Arthern, J. D. Kirkham, R. Totten Minzoni, T. A. Jordan, R. Clark, V. Fitzgerald, A. K. Wåhlin, J. B. Anderson, C.-D. Hillenbrand, F. O. Nitsche, L. Simkins, J. A. Smith, K. Gohl, J. E. Arndt, J. Hong, J. Wellner
Publikováno v:
The Cryosphere, Vol 14, Pp 2883-2908 (2020)
The geometry of the sea floor immediately beyond Antarctica's marine-terminating glaciers is a fundamental control on warm-water routing, but it also describes former topographic pinning points that have been important for ice-shelf buttressing. Unfo
Externí odkaz:
https://doaj.org/article/ab515f0918ec4c0580ff887da179c448
Autor:
T. A. Jordan, D. Porter, K. Tinto, R. Millan, A. Muto, K. Hogan, R. D. Larter, A. G. C. Graham, J. D. Paden
Publikováno v:
The Cryosphere, Vol 14, Pp 2869-2882 (2020)
Ice shelves play a critical role in the long-term stability of ice sheets through their buttressing effect. The underlying bathymetry and cavity thickness are key inputs for modelling future ice sheet evolution. However, direct observation of sub-ice
Externí odkaz:
https://doaj.org/article/9256381a687042128576c7153c2caf7b
Autor:
J. E. Arndt, R. D. Larter, C.-D. Hillenbrand, S. H. Sørli, M. Forwick, J. A. Smith, L. Wacker
Publikováno v:
The Cryosphere, Vol 14, Pp 2115-2135 (2020)
The Antarctic ice sheet extent in the Weddell Sea embayment (WSE) during the Last Glacial Maximum (LGM; ca. 19–25 calibrated kiloyears before present, ka cal BP) and its subsequent retreat from the shelf are poorly constrained, with two conflic
Externí odkaz:
https://doaj.org/article/ec231e3ccb6448d3aaaf324442222930
Autor:
F. Bohoyo, R. D. Larter, J. Galindo-Zaldívar, P. T. Leat, A. Maldonado, A. J. Tate, M. M. Flexas, E. J. M. Gowland, J. E. Arndt, B. Dorschel, Y. D. Kim, J. K. Hong, J. López-Martínez, A. Maestro, O. Bermúdez, F. O. Nitsche, R. A. Livermore, T. R. Riley
Publikováno v:
Journal of Maps, Vol 15, Iss 2, Pp 49-59 (2019)
The Drake Passage is an oceanic gateway of about 850 km width located between South America and the Antarctic Peninsula that connects the southeastern Pacific Ocean with the southwestern Atlantic Ocean. It is an important gateway for mantle flow, oce
Externí odkaz:
https://doaj.org/article/5b1a4238d20e4396ba0320735bf720d5
Autor:
J. D. Kirkham, K. A. Hogan, R. D. Larter, N. S. Arnold, F. O. Nitsche, N. R. Golledge, J. A. Dowdeswell
Publikováno v:
The Cryosphere, Vol 13, Pp 1959-1981 (2019)
Outburst floods from subglacial lakes beneath the Antarctic Ice Sheet modulate ice-flow velocities over periods of months to years. Although subglacial lake drainage events have been observed from satellite-altimetric data, little is known about thei
Externí odkaz:
https://doaj.org/article/c5ff8d7781374c8497b631773892440f
Autor:
R. D. Larter, K. A. Hogan, C.-D. Hillenbrand, J. A. Smith, C. L. Batchelor, M. Cartigny, A. J. Tate, J. D. Kirkham, Z. A. Roseby, G. Kuhn, A. G. C. Graham, J. A. Dowdeswell
Publikováno v:
The Cryosphere, Vol 13, Pp 1583-1596 (2019)
Basal hydrological systems play an important role in controlling the dynamic behaviour of ice streams. Data showing their morphology and relationship to geological substrates beneath modern ice streams are, however, sparse and difficult to collect. W
Externí odkaz:
https://doaj.org/article/10084b80a80949f88c4c230be2de7609
Publikováno v:
The Cryosphere, Vol 12, Pp 2039-2050 (2018)
Pine Island Glacier is the largest current Antarctic contributor to sea-level rise. Its ice loss has substantially increased over the last 25 years through thinning, acceleration and grounding line retreat. However, the calving line positions of t
Externí odkaz:
https://doaj.org/article/681723af0d884291bc7ac7577d540ec4
Autor:
C. Lavoie, E. W. Domack, E. C. Pettit, T. A. Scambos, R. D. Larter, H.-W. Schenke, K. C. Yoo, J. Gutt, J. Wellner, M. Canals, J. B. Anderson, D. Amblas
Publikováno v:
The Cryosphere, Vol 9, Iss 2, Pp 613-629 (2015)
We present a new seafloor map for the northern Antarctic Peninsula (AP), including swath multibeam data sets from five national programs. Our map allows for the examination and interpretation of Last Glacial Maximum (LGM) paleo-ice-flow paths develop
Externí odkaz:
https://doaj.org/article/51abc47cedf24a15a80199ac716d99f4