Results 31 to 40 of about 996,477 (244)

Initial results from geophysical surveys and shallow coring of the Northeast Greenland Ice Stream (NEGIS) [PDF]

The Cryosphere, 2014
The Northeast Greenland Ice Stream (NEGIS) is the sole interior Greenlandic ice stream. Fast flow initiates near the summit dome, and the ice stream terminates approximately 1000 km downstream in three large outlet glaciers that calve into the Greenland ...
P. Vallelonga, K. Christianson, R. B. Alley, S. Anandakrishnan, J. E. M. Christian, D. Dahl-Jensen, V. Gkinis, C. Holme, R. W. Jacobel, N. B. Karlsson, B. A. Keisling, S. Kipfstuhl, H. A. Kjær, M. E. L. Kristensen, A. Muto, L. E. Peters, T. Popp, K. L. Riverman, A. M. Svensson, C. Tibuleac, B. M. Vinther, Y. Weng, M. Winstrup   +22 more
doaj   +1 more source

Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers [PDF]

Earth Surface Dynamics
Ice cliffs are melt hot spots that contribute disproportionately to melt on debris-covered glaciers. In this study, we investigate the impact of supraglacial stream hydrology on ice cliffs using in situ and remote sensing observations, streamflow ...
E. Petersen, R. Hock, R. Hock, M. G. Loso   +3 more
doaj   +1 more source

Modeling Antarctic subglacial lake filling and drainage cycles [PDF]

The Cryosphere, 2016
The growth and drainage of active subglacial lakes in Antarctica has previously been inferred from analysis of ice surface altimetry data. We use a subglacial hydrology model applied to a synthetic Antarctic ice stream to examine internal controls on the
C. F. Dow, M. A. Werder, S. Nowicki, R. T. Walker   +3 more
doaj   +1 more source

Analytical solutions for the surface response to small amplitude perturbations in boundary data in the shallow-ice-stream approximation [PDF]

The Cryosphere, 2008
New analytical solutions describing the effects of small-amplitude perturbations in boundary data on flow in the shallow-ice-stream approximation are presented.
G. H. Gudmundsson
doaj  

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

PISM simulations of idealized shear-margin vs. ice-stream melt

, 2022
PISM model output, runs scripts and plotting scripts. The idealized simulations investigate the influence of basal melting in two different ice-shelf regions on the time-dependent response of an isothermal, inherently buttressed ice-sheet-shelf system ...
Feldmann, Johannes
core   +1 more source

Switch-off of a major enhanced ice flow unit in East Antarctica [PDF]

, 2006
The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its ...
Corr, Hugh F.J., Rippin, David M., Siegert, MJ, Bamber, JL, Vaughan, DG, Bamber, Jonathan L., Corr, HFJ, Vaughan, David G., Corr, Hugh F. J., Siegert, Martin J., Rippin, DM   +10 more
core   +1 more source

Estimation of ice fabric within Whillans Ice Stream using polarimetric phase-sensitive radar sounding

Annals of Glaciology, 2020
Here we use polarimetric measurements from an Autonomous phase-sensitive Radio-Echo Sounder (ApRES) to investigate ice fabric within Whillans Ice Stream, West Antarctica.
Thomas M. Jordan, Dustin M. Schroeder, Cooper W. Elsworth, Matthew R. Siegfried   +3 more
doaj   +1 more source

Ice stream behaviour and deglaciation of the Scandinavian Ice Sheet in the Kuittijärvi area, Russian Karelia [PDF]

Bulletin of the Geological Society of Finland, 2008
Glacial landforms of the Lake Kuittijärvi area, Russian Karelia, which covers an area of more than 7000 km2 , were studied in detail using aerial photography and satellite imagery methods and on-site field observations.
N. Putkinen, J.-P. Lunkka
doaj   +1 more source

Emergence of the Shackleton Range from beneath the Antarctic Ice Sheet due to glacial erosion [PDF]

, 2014
This paper explores the long-term evolution of a subglacial fjord landscape in the Shackleton Range, Antarctica. We propose that prolonged ice-sheet erosion across a passive continental margin caused troughs to deepen and lower the surrounding ice-sheet ...
Kerr, A. R., Hein, AS, Sugden, David, Stuart, F. M., Hein, A. S.; id_orcid, Sugden, DE, Fogwill, C. J., Kubik, PW, Kubik, P. W., Stuart, FM, Fogwill, CJ ; https://orcid.org/, Kerr, AR   +11 more
core   +1 more source