Results 41 to 50 of about 8,171 (221)

Deglaciation and ice shelf development at the northeast margin of the Laurentide Ice Sheet during the Younger Dryas chronozone [PDF]

, 2017
Core 2011804‐0010 from easternmost Lancaster Sound provides important insights into deglacial timing and style at the marine margin of the NE Laurentide Ice Sheet (LIS). Spanning 13.2–11.0 cal.
Bennett, R, Cage, AG, Furze, MFA, McNeely, MA, Pienkowski, AJ   +4 more
core   +2 more sources

Application of first arrival seismic tomography in a glaciated basin: implications for paleo-ice stream development

Journal of Glaciology, 2023
Ice streams are sites of ice-sheet drainage and together with other processes, such as calving, have an impact on deglaciation rates and ice-sheet mass balance.
Nicholas J. Zaremba, Christopher A. Scholz, Robert Moucha   +2 more
doaj   +1 more source

Derivation of Del180 from sediment core log data\u27 Implications for millennial-scale climate change in the Labrador Sea [PDF]

, 2001
Sediment core logs from six sediment cores in the Labrador Sea show millennial-scale climate variability during the last glacial by recording all Heinrich events and several major Dansgaard-Oeschger cycles.
A. E. Aksu, Andrews, Best, Bond, Bond, Broecker, C. Hillaire-Marcel, Dansgaard, Dowdeswell, F. Rack, Francois, G. Bilodeau, Grootes, Hagelberg, Hamilton, Hamilton, Harris, Heinrich, Hillaire-Marcel, Hillaire-Marcel, Hiscott, Holler, Kissel, L. A. Mayer, Lazier, M. E. Weber, Mayer, Mayer, Mayer, McAyeal, McCave, Mienert, Moros, Oppo, Paillard, Pisias, R. N. Hiscott, Rasmussen, Schön, Shackleton, Stoner, Stoner, Sy, Weber, Weber, Wood   +45 more
core   +2 more sources

The chronostratigraphy of Late Pleistocene glacial and periglacial aeolian activity in the Tuktoyaktuk Coastlands, NWT, Canada [PDF]

, 2006
Aeolian periglacial sand deposits are common in the Tuktoyaktuk Coastlands of Western Arctic Canada. Regionally extensive and thick aeolian sand-sheet deposits have been observed in two major stratigraphic settings: within a sand unit characterized by ...
Ager, Anderson, Andrews, Bateman, Bateman, Berger, Berger, Berger, Burn, Bégin, Carter, Dallimore, Dijkmans, Dinter, Duk-Rodkin, Duk-Rodkin, Dyke, Dyke, Edwards, Fairbanks, Fryberger, Grootes, Hamilton, Hopkins, Julian B. Murton, Kocurek, Kocurek, Koster, Lambeck, Lea, Lea, Lemmen, MacDonald, Mackay, Mackay, Mark D. Bateman, Martinson, McKee, Mejdal, Michaud, Murray, Murton, Murton, Murton, Murton, Murton, Nelson, Prescott, Riezebos, Ritchie, Ritchie, Ruz, Ruz, Saarnisto, Schwan, Stuiver, Taylor, Vincent, Willemse   +58 more
core   +2 more sources

Dynamic/thermodynamic simulations of Laurentide ice-sheet instability [PDF]

Annals of Glaciology, 1996
A crucial element of several leading theories of Laurentide ice-sheet instability (i.e. Heinrich events and advance/retreat cycles of the southern margin) is the evolution of melting conditions at the subglacial bed. Despite the great importance basal-temperature conditions play in these theories, relatively little has been done to test their physical ...
Greve, Ralf, MacAyeal, D.R.
openaire   +1 more source

Synoptic reorganization of atmospheric flow during the Last Glacial Maximum [PDF]

, 2005
A coupled global atmosphere–ocean model of intermediate complexity is used to study the influence of glacial boundary conditions on the atmospheric circulation during the Last Glacial Maximum in a systematical manner. A web of atmospheric interactions is
Axel Timmermann, Bjornsson, Broccoli, Bromwich, Bush, Campin, CLIMAP, Cook, Crowley, DeBlonde, Dong, Dong, Enio P. Souza, Flávio Justino, Ganopolski, Gent, Goosse, Goosse, Goosse, Hall, Hall, Held, Hewitt, Hoskins, Hoskins, Jeffreys, Kalnay, Kapsner, Kim, Kitoh, Kohfeld, Kuo, Lau, Lindzen, Liu, MacAyeal, Marshall, Marshall, Mellor, Opsteegh, Peltier, Peltier, Pflaumann, Rind, Sarnthein, Schmittner, Shin, Shinn, Stocker, Timmermann, Ute Merkel, Xie   +51 more
core   +1 more source

Change in Sediment Provenance on the Inner Slope of the Chukchi Rise and Their Paleoenvironmental Implications

Applied Sciences, 2021
The Arctic Ocean is one of the world’s most remarkable regions with respect to global climate change. The core ARA09C-St03 was analyzed for mineral composition and Nd isotope to determine the sediment provenance and reconstruct the paleoenvironment in ...
Hyo-Jin Koo, Young-Keun Jin, Hyen-Goo Cho   +2 more
doaj   +1 more source

Coherent Resonat millenial-scale climate transitions triggered by massive meltwater pulses [PDF]

, 2003
The role of mean and stochastic freshwater forcing on the generation of millennial-scale climate variability in the North Atlantic is studied using a low-order coupled atmosphere–ocean–sea ice model.
Gildor, M., Schulz, M., Timmermann, Axel, Tziperman, E.   +3 more
core   +1 more source

From cyclic ice streaming to Heinrich-like events: the grow-and-surge instability in the Parallel Ice Sheet Model [PDF]

The Cryosphere, 2017
>Here we report on a cyclic, physical ice-discharge instability in the Parallel Ice Sheet Model, simulating the flow of a three-dimensional, inherently buttressed ice-sheet-shelf system which periodically surges on a millennial timescale.
J. Feldmann, A. Levermann, A. Levermann, A. Levermann   +3 more
doaj   +1 more source

Modeling of the northern hemisphere ice sheets during the last glacial cycle and glaciological sensitivity [PDF]

, 2005
We present a new three-dimensional thermomechanically coupled ice sheet model of the northern hemisphere to reconstruct the Quaternary ice sheets during the last glacial cycle.
Huybrechts, Philippe, Zweck, C.
core   +1 more source