Results 31 to 40 of about 18,238 (212)

Short-term variability in Greenland Ice Sheet motion forced by time-varying meltwater inputs: implications for the relationship between subglacial drainage system behavior and ice velocity. [PDF]

, 2012
High resolution measurements of ice motion along a 120 km transect in a land-terminating section of the GrIS reveal short-term velocity variations (<1 day), which are forced by rapid variations in meltwater input to the subglacial drainage system from
Cowton, Thomas, Bartholomew, Ian, Nienow, Peter, Sole, A., Mair, Douglas, Mair, D., Sole, Andrew, King, Matt A., Cowton, T., Bartholomew, I., King, M.A., Nienow, P.   +11 more
core   +1 more source

The configuration of Northern Hemisphere ice sheets through the Quaternary

Nature Communications, 2019
How global climatic changes are translated into ice-sheet fluctuations and sea-level change is not well understood. Here the authors present a compilation of empirical data and numerical modelling results of pre-LGM Northern Hemisphere ice sheet changes ...
Christine L. Batchelor, Martin Margold, Mario Krapp, Della K. Murton, April S. Dalton, Philip L. Gibbard, Chris R. Stokes, Julian B. Murton, Andrea Manica   +8 more
doaj   +1 more source

Modelling dynamic ice-sheet boundaries and grounding line migration using the level set method

Journal of Glaciology, 2020
Computing predictions of future sea level that include well-defined uncertainty bounds requires models that are capable of robustly simulating the evolution of ice sheets and glaciers.
M. Alamgir Hossain, Sam Pimentel, John M. Stockie   +2 more
doaj   +1 more source

The speedup of Pine Island Ice Shelf between 2017 and 2020: revaluating the importance of ice damage

Journal of Glaciology, 2023
From 2017 to 2020, three significant calving events took place on Pine Island Glacier, West Antarctica. Ice-shelf velocities changed over this period and the calving events have been suggested as possible drivers.
Sainan Sun, G. Hilmar Gudmundsson
doaj   +1 more source

Testing hypotheses of the cause of peripheral thinning of the Greenland Ice Sheet: is land-terminating ice thinning at anomalously high rates? [PDF]

, 2008
Recent observations have shown that the periphery of the Greenland ice sheet (GrIS) is thinning rapidly and that this thinning is greatest around marine-terminating outlet glaciers. Several theories have been proposed which provide a link between climate
Krabill, W, Nienow, P, Payne, AJ, Bamber, JL, T. Payne, Bamber, J., J. Bamber, Sole, A., Payne, T., A. Sole, Sole, AJ, Krabill, W., P. Nienow, W. Krabill, Nienow, P.   +14 more
core   +1 more source

Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum [PDF]

, 2014
This paper compiles and reviews marine and terrestrial data constraining the dimensions and configuration of the Antarctic Peninsula Ice Sheet (APIS) from the Last Glacial Maximum (LGM) through deglaciation to the present day.
Glasser, N.F., Davies, Bethan J., Emma P. Hocking (7190990), Larter, Robert D., Larter, R.D., Anderson, J.B., John B. Anderson (7190993), Livingstone, Stephen J., Simms, A.R., Roberts, S.J., Ó Cofaigh, Colm, Domack, E., Evans, J., Hillenbrand, Claus-Dieter, James A. Smith (1496818), Livingstone, Stephen, Michael J. Bentley (7190996), Livingstone, S.J., Dowdeswell, Julian, Anderson, John B., Hocking, Emma, Eugene Domack (6507515), Anderson, John, Canals, M., Canals, Miquel, Roberts, Stephen J., Johnson, J.S., O Cofaigh, C., Stephen J. Roberts (7191008), Hillenbrand, C.D., Larter, Robert, Simms, Alexander, Neil F. Glasser (7191002), Hodgson, Dominic A., Smith, J.A., Julian A. Dowdeswell (7190999), Bentley, Michael J., Colm O Cofaigh (7190984), Jeffrey Evans (1254507), Dowdeswell, Julian A., Hocking, Emma P., Simms, Alexander R., Hillenbrand, Claus Dieter, Hodgson, D.A., Smith, James A., Bentley, M.J., Domack, Eugene, Dowdeswell, J.A., Davies, Bethan, Alexander R. Simms (7191011), Stephen J. Livingstone (3691018), Joanne S. Johnson (7190987), Robert D. Larter (7191005), Johnson, Joanne S., Bentley, Michael, Hodgson, Dominic, Bethan J. Davies (2843855), Glasser, Neil, Miquel Canals (186525), Claus-Dieter Hillenbrand (4276453), Dominic A. Hodgson (2043412), Evans, Jeffrey, Glasser, Neil F., Hillenbrand, C-D., Canals, Miguel, Hocking, E.P., Davies, B.J.   +66 more
core   +1 more source

The sensitivity of Northern Hemisphere ice sheets to atmospheric forcing during the last glacial cycle using PMIP3 models

Journal of Glaciology, 2019
The evolution of Northern Hemisphere ice sheets through the last glacial cycle is simulated with the glacial index method by using the climate forcing from one General Circulation Model, COSMOS.
LU NIU, GERRIT LOHMANN, SEBASTIAN HINCK, EVAN J. GOWAN, UTA KREBS-KANZOW   +4 more
doaj   +1 more source

Recent trends in melting conditions on the Antarctic Peninsula and their implications for ice-sheet mass balance and sea level [PDF]

, 2006
Long-term records from meteorological stations on the Antarctic Peninsula show strong rising trends in the annual duration of melting conditions. In each case, the trend is statistically significant and represents a major increase in the potential for ...
Dowdeswell, J.A., Bassford, R. P., Glazovsky, A.F., Glazovsky, A. F., Siegert, M. J,, Macheret, Y.Y., Macheret, Y. Y., Vaughan, David G., J. A. Dowdeswell, David G. Vaughan, A. F. Glazovsky, Oerlemans, J., R. P. Bassford, Bassford, R.P., Y. Y. Macheret, M. J. Siegert, Siegert, M. J., Dowdeswell, J. A., Siegert, M.J., J. Oerlemans   +19 more
core   +1 more source

The Greenland-Ice-Sheet evolution over the last 24 000 years: insights from model simulations evaluated against ice-extent markers [PDF]

The Cryosphere
Continental ice sheets retain a long-term memory stored in their geometry and thermal properties. In Greenland, this creates a disequilibrium with the present climate, as the ice sheet is still adjusting to past changes that occurred over millennial ...
T. P. M. Leger, T. P. M. Leger, J. C. Ely, C. D. Clark, S. L. Bradley, R. E. Archer, J. Zhu   +6 more
doaj   +1 more source

Importance of seasonal and annual layers in controlling backscatter to radar altimeters across the percolation zone of an ice sheet [PDF]

, 2006
Radar altimeters are one of the main tools for measuring elevation changes across the Antarctic and Greenland ice sheets and larger ice caps. A ground-based radar was deployed in autumn 2004 and spring 2006 in the percolation zone of the Greenland Ice ...
Scott, JBT, Nienow, Peter, Nienow, P, Scott, Julian B.T., Mair, Douglas, Mair, D., Wingham, Duncan J., Morris, E, Morris, Elizabeth, Morris, E., Mair, D, Parry, Victoria, Parry, V., Scott, J., Wingham, DJ, Parry, V, Wingham, D., Nienow, P.   +17 more
core   +1 more source