Search Results - "Clark, CHRIS D."

Numerical simulations of a kilometre-thick Arctic ice shelf consistent with ice grounding observations by Gasson, Edward G. W., DeConto, Robert M., Pollard, David, Clark, Chris D.

“…Recently obtained geophysical data show sets of parallel erosional features on the Lomonosov Ridge in the central Arctic Basin, indicative of ice grounding in…”
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Ice stream motion facilitated by a shallow-deforming and accreting bed by Spagnolo, Matteo, Phillips, Emrys, Piotrowski, Jan A., Rea, Brice R., Clark, Chris D., Stokes, Chris R., Carr, Simon J., Ely, Jeremy C., Ribolini, Adriano, Wysota, Wojciech, Szuman, Izabela

“…Ice streams drain large portions of ice sheets and play a fundamental role in governing their response to atmospheric and oceanic forcing, with implications…”
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Effects of basal topography and ice-sheet surface slope in a subglacial glaciofluvial deposition model by Stevens, David, Ely, Jeremy C., Livingstone, Stephen J., Clark, Chris D., Butcher, Frances E. G., Hewitt, Ian

“…We use a mathematical model to investigate the effect of basal topography and ice surface slope on transport and deposition of sediment within a water-filled…”
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Subglacial meltwater routes of the Fennoscandian Ice Sheet by Dewald, Nico, Livingstone, Stephen J., Clark, Chris D.

“…Subglacial drainage systems are crucial elements of glaciers and ice sheets because they modulate ice flow velocity. However, logistical challenges of…”
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Modeling the flow of glaciers in steep terrains: The integrated second-order shallow ice approximation (iSOSIA) by Egholm, David L., Knudsen, Mads F., Clark, Chris D., Lesemann, Jerome E.

“…The rugged topography of mountain ranges represents a special challenge to computational ice sheet models simulating past or present glaciations. In…”
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Discovery of relict subglacial lakes and their geometry and mechanism of drainage by Livingstone, Stephen J., Utting, Daniel J., Ruffell, Alastair, Clark, Chris D., Pawley, Steven, Atkinson, Nigel, Fowler, Andrew C.

“…Recent proxy measurements reveal that subglacial lakes beneath modern ice sheets periodically store and release large volumes of water, providing an important…”
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Exploring Explanations of Subglacial Bedform Sizes Using Statistical Models by Hillier, John K, Kougioumtzoglou, Ioannis A, Stokes, Chris R, Smith, Michael J, Clark, Chris D, Spagnolo, Matteo S

“…Sediments beneath modern ice sheets exert a key control on their flow, but are largely inaccessible except through geophysics or boreholes. In contrast,…”
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Reconciling records of ice streaming and ice margin retreat to produce a palaeogeographic reconstruction of the deglaciation of the Laurentide Ice Sheet by Margold, Martin, Stokes, Chris R., Clark, Chris D.

“…This paper reconstructs the deglaciation of the Laurentide Ice Sheet (LIS; including the Innuitian Ice Sheet) from the Last Glacial Maximum (LGM), with a…”
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Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets by Margold, Martin, Stokes, Chris R., Clark, Chris D.

“…This paper presents a comprehensive review and synthesis of ice streams in the Laurentide Ice Sheet (LIS) based on a new mapping inventory that includes…”
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Flow-stripes and foliations of the Antarctic ice sheet by Ely, Jeremy C., Clark, Chris D.

“…Longitudinal surface structures (LSSs) are flow parallel curvilineations visible on satellite imagery which are commonly observed on ice shelves, ice streams…”
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Bed Ribbing Instability Explanation: Testing a numerical model of ribbed moraine formation arising from coupled flow of ice and subglacial sediment by Dunlop, Paul, Clark, Chris D., Hindmarsh, Richard C. A.

“…Ribbed moraines are large (up to 16 km long) ridges of sediment produced transverse to ice flow direction that formed widely beneath palaeo‐ice sheets. Since…”
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Forward modelling of the completeness and preservation of palaeoclimate signals recorded by ice‐marginal moraines by Rowan, Ann V., Egholm, David L., Clark, Chris D.

“…Glaciers fluctuate in response to climate change and record these changes by building sedimentary landforms, including moraines. Therefore, glacial landscapes…”
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The composition and internal structure of drumlins: Complexity, commonality, and implications for a unifying theory of their formation by Stokes, Chris R., Spagnolo, Matteo, Clark, Chris D.

“…Investigation of drumlins is significant to both glaciology and palaeoglaciology but the sheer diversity of their composition and internal structure is often…”
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Ice streams in the Laurentide Ice Sheet: a new mapping inventory by Margold, Martin, Stokes, Chris R., Clark, Chris D., Kleman, Johan

“…Rapidly flowing ice streams dominate the drainage of continental ice sheets and are a key component of their mass balance. Due to their potential impact on sea…”
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Flow-pattern evolution of the last British Ice Sheet by Hughes, Anna L.C., Clark, Chris D., Jordan, Colm J.

“…We present a 10-stage reconstruction of the evolution in ice-flow patterns of the last British Ice Sheet from build-up to demise derived from geomorphological…”
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Numerical modelling of subglacial ribs, drumlins, herringbones, and mega‐scale glacial lineations reveals their developmental trajectories and transitions by Ely, Jeremy C., Stevens, David, Clark, Chris D., Butcher, Frances E. G.

“…Initially a matter of intellectual curiosity, but now important for understanding ice‐sheet dynamics, the formation of subglacial bedforms has been a subject…”
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Late Quaternary glaciations in Far NE Russia; combining moraines, topography and chronology to assess regional and global glaciation synchrony by Barr, Iestyn D., Clark, Chris D.

“…During various periods of Late Quaternary glaciation, small ice-sheets, -caps, -fields and valley glaciers, occupied the mountains and uplands of Far NE Russia…”
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Reconstructing the last Irish Ice Sheet 2: a geomorphologically-driven model of ice sheet growth, retreat and dynamics by Greenwood, Sarah L., Clark, Chris D.

“…The ice sheet that once covered Ireland has a long history of investigation. Much prior work focussed on localised evidence-based reconstructions and…”
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Reconstructing the last Irish Ice Sheet 1: changing flow geometries and ice flow dynamics deciphered from the glacial landform record by Greenwood, Sarah L., Clark, Chris D.

“…The glacial geomorphological record provides an effective means to reconstruct former ice sheets at ice sheet scale. In this paper we document our approach and…”
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Reconstruction of the palaeo‐sea level of Britain and Ireland arising from empirical constraints of ice extent: implications for regional sea level forecasts and North American ice sheet volume by Bradley, SARAH L., Ely, JEREMY C., Clark, CHRIS D., Edwards, ROBIN J., Shennan, Ian

“…ABSTRACT Reconstructions of palaeo‐sea level are vital for predicting future sea level change and constraining palaeo‐ice sheet reconstructions, as well as…”
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