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Professor Chris Stokes' Outputs (159)

Ice streams in the Laurentide Ice Sheet: a new mapping inventory (2014)
Journal Article
Margold, M., Stokes, C., Clark, C., & Kleman, J. (2015). Ice streams in the Laurentide Ice Sheet: a new mapping inventory. Journal of Maps, 11(3), 380-395. https://doi.org/10.1080/17445647.2014.912036

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 level, their activity in the Antarctic and Greenland Ice Sheets has undergone detailed scr... Read More about Ice streams in the Laurentide Ice Sheet: a new mapping inventory.

Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet (2014)
Journal Article
Stokes, C., Corner, G., Winsborrow, M., Husum, K., & Andreassen, K. (2014). Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet. Geology, 42(5), 455-458. https://doi.org/10.1130/g35299.1

Recent studies have highlighted the dynamic behavior of marine-terminating outlet glaciers over decadal time scales, linked to both atmospheric and oceanic warming. This helps explain episodes of nearly synchronous flow acceleration, thinning, and re... Read More about Asynchronous response of marine-terminating outlet glaciers during deglaciation of the Fennoscandian Ice Sheet.

A cold hydrological system in Gale Crater, Mars (2014)
Journal Article
Fairen, A., Stokes, C., Davies, N., Schulze-Makuch, D., Rodriguez, J., Davila, A., …Squyres, S. (2014). A cold hydrological system in Gale Crater, Mars. Planetary and Space Science, 93-94, 101-118. https://doi.org/10.1016/j.pss.2014.03.002

Gale crater is a ~154-km-diameter impact crater formed during the Late Noachian/Early Hesperian at the dichotomy boundary on Mars. Here we describe potential evidence for ancient glacial, periglacial and fluvial (including glacio-fluvial) activity wi... Read More about A cold hydrological system in Gale Crater, Mars.

A glacial geomorphological map of the southernmost ice lobes of Patagonia: the Bahía Inútil - San Sebastián, Magellan, Otway, Skyring and Bella Vista lobes (2014)
Journal Article
Darvill, C., Stokes, C., Bentley, M., & Lovell, H. (2014). A glacial geomorphological map of the southernmost ice lobes of Patagonia: the Bahía Inútil - San Sebastián, Magellan, Otway, Skyring and Bella Vista lobes. Journal of Maps, 10(3), 500-520. https://doi.org/10.1080/17445647.2014.890134

This paper presents a glacial geomorphological map of the landforms created by five large ice lobes that extended eastwards from the southernmost reaches of the Patagonian Ice Sheet during the Quaternary period. The study is focussed on Tierra del Fu... Read More about A glacial geomorphological map of the southernmost ice lobes of Patagonia: the Bahía Inútil - San Sebastián, Magellan, Otway, Skyring and Bella Vista lobes.

Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model (2014)
Journal Article
Jamieson, S., Vieli, A., Ó Cofaigh, C., Stokes, C., Livingstone, S., & Hillenbrand, C. (2014). Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model. Journal of Geophysical Research: Earth Surface, 119(2), 247-263. https://doi.org/10.1002/2013jf002934

Using a one-dimensional numerical model of ice-stream flow with robust grounding-line dynamics, we explore controls on paleo-ice-stream retreat in Marguerite Bay, Antarctica, during the last deglaciation. Landforms on the continental shelf constrain... Read More about Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model.

Recent retreat of major outlet glaciers on Novaya Zemlya, Russian Arctic, influenced by fjord geometry and sea-ice conditions (2014)
Journal Article
Carr, J., Stokes, C., & Vieli, A. (2014). Recent retreat of major outlet glaciers on Novaya Zemlya, Russian Arctic, influenced by fjord geometry and sea-ice conditions. Journal of Glaciology, 60(219), 155-170. https://doi.org/10.3189/2014jog13j122

Substantial ice loss has occurred in the Russian High Arctic during the past decade, predominantly on Novaya Zemlya, yet the region has been studied relatively little. Consequently, the factors forcing mass loss and the relative contribution of ice d... Read More about Recent retreat of major outlet glaciers on Novaya Zemlya, Russian Arctic, influenced by fjord geometry and sea-ice conditions.

Increased channelization of subglacial drainage during deglaciation of the Laurentide Ice Sheet (2014)
Journal Article
Storrar, R., Stokes, C., & Evans, D. (2014). Increased channelization of subglacial drainage during deglaciation of the Laurentide Ice Sheet. Geology, 42(3), 239-242. https://doi.org/10.1130/g35092.1

The configuration of subglacial meltwater is a critical control on ice sheet dynamics, and the presence of pressurized water distributed across the bed can induce dynamic instabilities. However, this process can be offset by efficient evacuation of w... Read More about Increased channelization of subglacial drainage during deglaciation of the Laurentide Ice Sheet.

Glacial geomorphology of the Great Glen Region of Scotland (2014)
Journal Article
Turner, A., Woodward, J., Stokes, C., O'Cofaigh, C., & Dunning, S. (2014). Glacial geomorphology of the Great Glen Region of Scotland. Journal of Maps, 10(1), 159-178. https://doi.org/10.1080/17445647.2013.866369

This paper presents a detailed glacial Main Map of the Great Glen region of Scotland, UK, covering an area of over 6800 km2 extending from 56°34′7″ to 57°41′1″ N and from 3°44′2″ to 5°33′24″ W. This represents the first extensive mapping of the glaci... Read More about Glacial geomorphology of the Great Glen Region of Scotland.

Evidence of Glacier Flow Directions. (2013)
Book Chapter
Stokes, C. (2013). Evidence of Glacier Flow Directions. In S. Elias (Ed.), The Encyclopedia of Quaternary Science (895-908). Elsevier

On the size and shape of drumlins (2013)
Journal Article
Fowler, A., Spagnolo, M., Clark, C., Stokes, C., Hughes, A., & Dunlop, P. (2013). On the size and shape of drumlins. GEM - International Journal on Geomathematics, 4(2), 155-165. https://doi.org/10.1007/s13137-013-0050-0

We provide a mechanistic explanation for observed metrics for drumlins, which represent their sizes and shapes. Our explanation is based on a concept of drumlin growth occurring through a process of instability, whereby small amplitude wave forms fir... Read More about On the size and shape of drumlins.

Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 2. Sedimentology and stratigraphy (2013)
Journal Article
O'Cofaigh, C., Stokes, C., Lian, O., Clark, C., & Tulaczyk, S. (2013). Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 2. Sedimentology and stratigraphy. Quaternary Science Reviews, 77, 210-227. https://doi.org/10.1016/j.quascirev.2013.06.028

Mega-scale glacial lineations (MSGLs) are highly elongate, subglacial landforms produced beneath zones of fast-flowing ice. While qualitative data on their morphology have existed for several decades, studies of their composition and sedimentology ar... Read More about Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 2. Sedimentology and stratigraphy.

Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 1. Size, Shape and Spacing from a large remote sensing dataset (2013)
Journal Article
Stokes, C., Spagnolo, M., Clark, C., O'Cofaigh, C., Lian, O., & Dunstone, R. (2013). Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 1. Size, Shape and Spacing from a large remote sensing dataset. Quaternary Science Reviews, 77, 190-209. https://doi.org/10.1016/j.quascirev.2013.06.003

Mega-scale glacial lineations (MSGLs) are the largest flow parallel bedforms produced by ice sheets and are formed beneath rapidly-flowing ice streams. Knowledge of their characteristics and genesis is likely to result in an improved understanding of... Read More about Formation of mega-scale glacial lineations on the Dubawnt Lake Ice Stream bed: 1. Size, Shape and Spacing from a large remote sensing dataset.

Influence of sea ice decline, atmospheric warming, and glacier width on marine-terminating outlet glacier behavior in northwest Greenland at seasonal to interannual timescales (2013)
Journal Article
Carr, J., Vieli, A., & Stokes, C. (2013). Influence of sea ice decline, atmospheric warming, and glacier width on marine-terminating outlet glacier behavior in northwest Greenland at seasonal to interannual timescales. Journal of Geophysical Research: Earth Surface, 118(3), 1210-1226. https://doi.org/10.1002/jgrf.20088

[1] Discharge from marine-terminating outlet glaciers represents a key component of the Greenland Ice Sheet mass budget and observations suggest that mass loss from northwest Greenland has recently accelerated. Despite this, the factors controlling o... Read More about Influence of sea ice decline, atmospheric warming, and glacier width on marine-terminating outlet glacier behavior in northwest Greenland at seasonal to interannual timescales.

Rapid, climate-driven changes in outlet glaciers on the Pacific coast of East Antarctica (2013)
Journal Article
Miles, B., Stokes, C., Vieli, A., & Cox, N. (2013). Rapid, climate-driven changes in outlet glaciers on the Pacific coast of East Antarctica. Nature, 500(7464), 563-566. https://doi.org/10.1038/nature12382

Observations of ocean-terminating outlet glaciers in Greenland and West Antarctica1, 2, 3, 4, 5, 6 indicate that their contribution to sea level is accelerating as a result of increased velocity, thinning and retreat7, 8, 9, 10, 11. Thinning has also... Read More about Rapid, climate-driven changes in outlet glaciers on the Pacific coast of East Antarctica.

Evidence for Hesperian glaciation along the Martian dichotomy boundary (2013)
Journal Article
Davila, A., Fairen, A., Stokes, C., Platz, T., Rodriguez, A., Lacelle, D., …Pollard, W. (2013). Evidence for Hesperian glaciation along the Martian dichotomy boundary. Geology, 41(7), 755-758. https://doi.org/10.1130/g34201.1

Here we provide geologic and geomorphologic evidence of Hesperian glacial activity along the Martian topographic dichotomy in Aeolis Mensae. Our geologic investigation focuses on a fretted plateau unit with networks of deep, flat-bottomed valleys, so... Read More about Evidence for Hesperian glaciation along the Martian dichotomy boundary.

A map of large Canadian eskers from Landsat satellite imagery (2013)
Journal Article
Storrar, R., Stokes, C., & Evans, D. (2013). A map of large Canadian eskers from Landsat satellite imagery. Journal of Maps, 9(3), 456-473. https://doi.org/10.1080/17445647.2013.815591

Meltwater drainage systems beneath ice sheets are a poorly understood, yet fundamentally important environment for understanding glacier dynamics, which are strongly influenced by the nature and quantity of meltwater entering the subglacial system. C... Read More about A map of large Canadian eskers from Landsat satellite imagery.

Subglacial bedforms reveal an exponential size-frequency distribution (2013)
Journal Article
Hillier, J., Smith, M., Clark, C., Stokes, C., & Spagnolo, M. (2013). Subglacial bedforms reveal an exponential size-frequency distribution. Geomorphology, 190, 82-91. https://doi.org/10.1016/j.geomorph.2013.02.017

Subglacial bedforms preserved in deglaciated landscapes record characteristics of past ice–sediment flow regimes, providing insight into subglacial processes and ice sheet dynamics. Individual forms vary considerably, but they can often be grouped in... Read More about Subglacial bedforms reveal an exponential size-frequency distribution.