Academic literature on the topic 'Ice sheet reconstruction; Quaternary science'

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Journal articles on the topic "Ice sheet reconstruction; Quaternary science"

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Cofaigh, Colm Ó. "Ice sheets viewed from the ocean: the contribution of marine science to understanding modern and past ice sheets." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 370, no. 1980 (2012): 5512–39. http://dx.doi.org/10.1098/rsta.2012.0398.

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Over the last two decades, marine science, aided by technological advances in sediment coring, geophysical imaging and remotely operated submersibles, has played a major role in the investigation of contemporary and former ice sheets. Notable advances have been achieved with respect to reconstructing the extent and flow dynamics of the large polar ice sheets and their mid-latitude counterparts during the Quaternary from marine geophysical and geological records of landforms and sediments on glacier-influenced continental margins. Investigations of the deep-sea ice-rafted debris record have dem
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Tigchelaar, Michelle, Axel Timmermann, Tobias Friedrich, Malte Heinemann, and David Pollard. "Nonlinear response of the Antarctic Ice Sheet to late Quaternary sea level and climate forcing." Cryosphere 13, no. 10 (2019): 2615–31. http://dx.doi.org/10.5194/tc-13-2615-2019.

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Abstract. Antarctic ice volume has varied substantially during the late Quaternary, with reconstructions suggesting a glacial ice sheet extending to the continental shelf break and interglacial sea level highstands of several meters. Throughout this period, changes in the Antarctic Ice Sheet were driven by changes in atmospheric and oceanic conditions and global sea level; yet, so far modeling studies have not addressed which of these environmental forcings dominate and how they interact in the dynamical ice sheet response. Here, we force an Antarctic Ice Sheet model with global sea level reco
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Bradwell, Tom, and Martyn Stoker. "Asymmetric ice-sheet retreat pattern around northern Scotland revealed by marine geophysical surveys." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 105, no. 4 (2014): 297–322. http://dx.doi.org/10.1017/s1755691015000109.

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ABSTRACTThis study uses marine geophysical data, principally single-beam and high-resolution multibeam echo sounder bathymetry, combined with seismic sub-bottom profiles, and existing Quaternary geological information, to map the glacial geomorphology of a large area of seafloor (∼50,000 km2) on the continental shelf around northern Scotland, from west of Lewis to north of the Orkney Islands. Our new mapping reveals the detailed pattern of submarine glacial landforms, predominantly moraines, relating to ice sheets that covered Scotland and much of the continental shelf during the Late Weichsel
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Kennedy, Douglas S., and John B. Anderson. "Glacial-Marine Sedimentation and Quaternary Glacial History of Marguerite Bay, Antarctic Peninsula." Quaternary Research 31, no. 2 (1989): 255–76. http://dx.doi.org/10.1016/0033-5894(89)90008-2.

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AbstractMarguerite Bay, situated between the subpolar glacial regime of the northern Antarctic Peninsula and the polar glacial regime of West Antarctica, is ideally located to test various models of glacial and glacial-marine sedimentation and specific scenarios of late Wisconsin ice sheet expansion. Piston cores and single-channel seismic reflection data were collected during the Deep Freeze 85 and 86 expeditions to determine the late Quaternary history of the area. Seismic data in the bay show a rugged seafloor, with numerous deep troughs and a very thin layer of sediment over crystalline ba
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Knight, Jasper. "Comment on “Last glacial maximum cirque glaciation in Ireland and implications for reconstructions of the Irish ice sheet. Quaternary Science Reviews 141, 85–93”." Quaternary Science Reviews 150 (October 2016): 308–10. http://dx.doi.org/10.1016/j.quascirev.2016.08.001.

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Barth, Aaron M., Peter U. Clark, Jorie Clark, A. Marshall McCabe, and Marc Caffee. "Reply to comment received from J. C. Knight regarding “Last Glacial Maximum cirque glaciation in Ireland and implications for reconstructions of the Irish Ice Sheet” by Barth et al. (2016), Quaternary Science Reviews 141, 85–93." Quaternary Science Reviews 150 (October 2016): 310–11. http://dx.doi.org/10.1016/j.quascirev.2016.08.019.

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Erb, Michael P., Charles S. Jackson, and Anthony J. Broccoli. "Using Single-Forcing GCM Simulations to Reconstruct and Interpret Quaternary Climate Change." Journal of Climate 28, no. 24 (2015): 9746–67. http://dx.doi.org/10.1175/jcli-d-15-0329.1.

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Abstract The long-term climate variations of the Quaternary were primarily influenced by concurrent changes in Earth’s orbit, greenhouse gases, and ice sheets. However, because climate changes over the coming century will largely be driven by changes in greenhouse gases alone, it is important to better understand the separate contributions of each of these forcings in the past. To investigate this, idealized equilibrium simulations are conducted in which the climate is driven by separate changes in obliquity, precession, CO2, and ice sheets. To test the linearity of past climate change, anomal
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Box, Jason E., and William Colgan. "Greenland Ice Sheet Mass Balance Reconstruction. Part III: Marine Ice Loss and Total Mass Balance (1840–2010)." Journal of Climate 26, no. 18 (2013): 6990–7002. http://dx.doi.org/10.1175/jcli-d-12-00546.1.

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Abstract Greenland ice sheet mass loss to the marine environment occurs by some combination of iceberg calving and underwater melting (referred to here as marine ice loss, LM). This study quantifies the relation between LM and meltwater runoff (R) at the ice sheet scale. A theoretical basis is presented explaining how variability in R can be expected to govern much of the LM variability over annual to decadal time scales. It is found that R enhances LM through three processes: 1) increased glacier discharge by ice warming–softening and basal lubrication–sliding; 2) increased calving susceptibi
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Goodwin, Ian D., and Carol J. Pudsey. "Introduction." Antarctic Science 10, no. 3 (1998): 225–26. http://dx.doi.org/10.1017/s0954102098000315.

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This issue contains a group of papers selected from those presented at the 1st workshop of the SCAR-GLOCHANT and IGBP-PAGES cosponsored programme on the Late Quaternary Sedimentary Record of the Antarctic Ice Margin Evolution (ANTIME), held in Hobart, 6-1 1 July 1997. ANTIME is focused on the circurn Antarctic reconstruction of palaeoclimate, palaeoenvironment, and ice sheet palaeogeography throughout the last glacial cycle. There were 65 participants from Australia, USA, UK, Italy, Spain, Japan, Sweden, Germany and Russia at the workshop. The participants included representatives of PAGES, IM
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Fitzsimons, Sean J. "Depositional models for moraine formation in East Antarctic coastal oases." Journal of Glaciology 43, no. 144 (1997): 256–64. http://dx.doi.org/10.3189/s0022143000003208.

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AbstractThis paper examines the origin of moraine ridges in East Antarctic coastal oases and derives depositional models appropriate for the reconstruction of Quaternary history. On the basis of morphology, structure and sedimentology, four principal types of ridge may be identified: (1) type A moraines from when the basal debris zone crops out near an ice margin; (2) type B moraines form when large recumbent folds develop in the basal debris zone; (3) type C moraines are ice-contact screes and fans which form when debris accumulates at steep or cliffed ice margins; and (4) type D moraines are
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Dissertations / Theses on the topic "Ice sheet reconstruction; Quaternary science"

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Fish, Paul Ross. "Stratigraphy, provenance and glaciodynamic origins of the Lowestoft till of eastern England." Thesis, University of Brighton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323525.

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(10724127), Jennifer C. H. Newall. "RECONSTRUCTING ICE SHEET SURFACE CHANGES IN WESTERN DRONNING MAUD LAND, ANTARCTICA." Thesis, 2021.

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<p>Understanding climate-driven changes in global land-based ice volume is a critical component in our capability to predict how global sea level will rise as a consequence of the current human-driven climate change. At the last glacial maximum (LGM, which peaked around 20 ka), ephemeral ice sheets covered vast regions of the northern hemisphere while both the Greenland and Antarctic ice sheets were more extensive than at present. As global temperatures rose at the transition into the Holocene, driving the LGM deglaciation, eustatic sea level rose by approximately 125 m. The east Antarctic ice
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Eamer, Jordan Blair Reglin. "Reconstruction of the Late Pleistocene and Holocene geomorphology of northwest Calvert Island, British Columbia." Thesis, 2017. http://hdl.handle.net/1828/7944.

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This dissertation presents results from a multi-year interdisciplinary study of the Late Quaternary geomorphic history of northwest Calvert Island, British Columbia, Canada. There is a considerable knowledge gap in the region pertaining to Cordilleran ice cover and extent as well as landscape response to a uniquely stable relative sea-level history. The objective of this study was to reconstruct this regional landscape response to deglaciation including post-LGM ice cover and extent, relative sea-level changes, coastal landform development, and climate and ecological variance. Methods used to
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Book chapters on the topic "Ice sheet reconstruction; Quaternary science"

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Hvidberg, C. S., A. Svensson, and S. L. Buchardt. "ICE CORES | Dynamics of the Greenland Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-444-53643-3.00327-7.

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Hvidberg, C. S., A. Svensson, and S. L. Buchardt. "ICE CORES | Dynamics of the Greenland Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-44-452747-8/00342-2.

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Waddington, E. D., and C. S. Lingle. "ICE CORES | Dynamics of the East Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-444-53643-3.00031-5.

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Bindschadler, R. "ICE CORES | Dynamics of the West Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-444-53643-3.00032-7.

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Waddington, E. D., and C. S. Lingle. "ICE CORES | Dynamics of the East Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-44-452747-8/00343-4.

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Bindschadler, R. "ICE CORES | Dynamics of the West Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-44-452747-8/00344-6.

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HVIDBERG, C., A. SVENSSON, and S. BUCHARDT. "Dynamics of the Greenland Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-444-52747-8/00342-2.

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MICKELSON, D., and C. WINGUTH. "Evidence of Glacier and Ice Sheet Extent." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-444-52747-8/00080-6.

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WADDINGTON, E., and C. LINGLE. "Dynamics of the East Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-444-52747-8/00343-4.

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BINDSCHADLER, R. "Dynamics of the West Antarctic Ice Sheet." In Encyclopedia of Quaternary Science. Elsevier, 2007. http://dx.doi.org/10.1016/b0-444-52747-8/00344-6.

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