Search Results - "Rowan, Ann V."

Internal structure of a Himalayan debris-covered glacier revealed by borehole optical televiewing by Miles, Katie E., Hubbard, Bryn, Miles, Evan S., Quincey, Duncan J., Rowan, Ann V.

“…Characterising the structures within glaciers can give unique insight into ice motion processes. On debris-covered glaciers, traditional structural…”
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Spatial variability in mass loss of glaciers in the Everest region, central Himalayas, between 2000 and 2015 by King, Owen, Quincey, Duncan J, Carrivick, Jonathan L, Rowan, Ann V

“…Region-wide averaging of Himalayan glacier mass change has masked any catchment or glacier-scale variability in glacier recession; thus the role of a number of…”
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Provenance and transport of supraglacial debris revealed by variations in debris geochemistry on Khumbu Glacier, Nepal Himalaya by Kirkbride, Martin P., Sherriff, Sophie C., Rowan, Ann V., Egholm, David L., Quincey, Duncan J., Miles, Evan, Hubbard, Bryn, Miles, Katie

“…The origin of supraglacial debris covers is often conceptualised as the formation of a surface lag by melt‐out of englacial debris from slow‐moving ice, where…”
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Quantifying ice cliff evolution with multi-temporal point clouds on the debris-covered Khumbu Glacier, Nepal by WATSON, C. SCOTT, QUINCEY, DUNCAN J., SMITH, MARK W., CARRIVICK, JONATHAN L., ROWAN, ANN V., JAMES, MIKE R.

“…Measurements of glacier ice cliff evolution are sparse, but where they do exist, they indicate that such areas of exposed ice contribute a disproportionate…”
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Polythermal structure of a Himalayan debris-covered glacier revealed by borehole thermometry by Miles, Katie E., Hubbard, Bryn, Quincey, Duncan J., Miles, Evan S., Sherpa, Tenzing C., Rowan, Ann V., Doyle, Samuel H.

“…Runoff from high-elevation debris-covered glaciers represents a crucial water supply for millions of people in the Hindu Kush-Himalaya region, where peak water…”
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Field-based research directions for investigating the interior of high-elevation debris-covered glaciers by Miles, Katie E., Hubbard, Bryn, Miles, Evan S., Quincey, Duncan J., Rowan, Ann V.

“…The debris that covers the ablation areas of high-elevation debris-covered glaciers contributes to the distinctive features and processes occurring both on and…”
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Supraglacial Ponds Regulate Runoff From Himalayan Debris‐Covered Glaciers by Irvine‐Fynn, Tristram D. L., Porter, Philip R., Rowan, Ann V., Quincey, Duncan J., Gibson, Morgan J., Bridge, Jonathan W., Watson, C. Scott, Hubbard, Alun, Glasser, Neil F.

“…Meltwater and runoff from glaciers in High Mountain Asia is a vital freshwater resource for one‐fifth of the Earth's population. Between 13% and 36% of the…”
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Heterogeneous water storage and thermal regime of supraglacial ponds on debris‐covered glaciers by Watson, Cameron Scott, Quincey, Duncan J., Carrivick, Jonathan L., Smith, Mark W., Rowan, Ann V., Richardson, Robert

“…The water storage and energy transfer roles of supraglacial ponds are poorly constrained, yet they are thought to be important components of debris‐covered…”
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Seasonally stable temperature gradients through supraglacial debris in the Everest region of Nepal, Central Himalaya by Rowan, Ann V., Nicholson, Lindsey I., Quincey, Duncan J., Gibson, Morgan J., Irvine-Fynn, Tristram D.L., Watson, C. Scott, Wagnon, Patrick, Rounce, David R., Thompson, Sarah S., Porter, Philip R., Glasser, Neil F.

“…Rock debris covers ~30% of glacier ablation areas in the Central Himalaya and modifies the impact of atmospheric conditions on mass balance. The thermal…”
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Warming and glacier recession in the Rakaia valley, Southern Alps of New Zealand, during Heinrich Stadial 1 by Putnam, Aaron E., Schaefer, Joerg M., Denton, George H., Barrell, David J.A., Andersen, Bjørn G., Koffman, Tobias N.B., Rowan, Ann V., Finkel, Robert C., Rood, Dylan H., Schwartz, Roseanne, Vandergoes, Marcus J., Plummer, Mitchell A., Brocklehurst, Simon H., Kelley, Samuel E., Ladig, Kathryn L.

“…The termination of the last ice age featured a major reconfiguration of Earthʼs climate and cryosphere, yet the underlying causes of these massive changes…”
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The ‘Little Ice Age’ in the Himalaya: A review of glacier advance driven by Northern Hemisphere temperature change by Rowan, Ann V

“…Northern Hemisphere cooling between 1400 and 1900 in the Common Era (CE) resulted in the expansion of glaciers during a period known as the ‘Little Ice Age’…”
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Instruments and methods: hot-water borehole drilling at a high-elevation debris-covered glacier by Miles, Katie E., Miles, Evan S., Hubbard, Bryn, Quincey, Duncan J., Rowan, Ann V., Pallett, Mark

“…While hot-water drilling is a well-established technique used to access the subsurface of ice masses, drilling into high-elevation (≳ 4000 m a.s.l.)…”
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Variations in near‐surface debris temperature through the summer monsoon on Khumbu Glacier, Nepal Himalaya by Gibson, Morgan J., Irvine‐Fynn, Tristram D.L., Wagnon, Patrick, Rowan, Ann V., Quincey, Duncan J., Homer, Rachel, Glasser, Neil F.

“…Debris surface temperature is a function of debris characteristics and energy fluxes at the debris surface. However, spatial and temporal variability in debris…”
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Little Ice Age glaciers in Britain: Glacier–climate modelling in the Cairngorm Mountains by Harrison, Stephan, Rowan, Ann V, Glasser, Neil F, Knight, Jasper, Plummer, Mitchell A, Mills, Stephanie C

“…It is widely believed that the last glaciers in the British Isles disappeared at the end of the Younger Dryas stadial (12.9–11.7 cal. kyr BP). Here, we use a…”
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Modelling the feedbacks between mass balance, ice flow and debris transport to predict the response to climate change of debris-covered glaciers in the Himalaya by Rowan, Ann V., Egholm, David L., Quincey, Duncan J., Glasser, Neil F.

“…Many Himalayan glaciers are characterised in their lower reaches by a rock debris layer. This debris insulates the glacier surface from atmospheric warming and…”
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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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Late Quaternary glacier sensitivity to temperature and precipitation distribution in the Southern Alps of New Zealand by Rowan, Ann V., Brocklehurst, Simon H., Schultz, David M., Plummer, Mitchell A., Anderson, Leif S., Glasser, Neil F.

“…Glaciers respond to climate variations and leave geomorphic evidence that represents an important terrestrial paleoclimate record. However, the accuracy of…”
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Morphology and evolution of supraglacial hummocks on debris‐covered Himalayan glaciers by Bartlett, Oliver T., Ng, Felix S.L., Rowan, Ann V.

“…Thick supraglacial debris layers often have an undulating, hummocky topography that influences the lateral transport of debris and meltwater and provides…”
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Surface and subsurface hydrology of debris-covered Khumbu Glacier, Nepal, revealed by dye tracing by Miles, Katie E., Hubbard, Bryn, Quincey, Duncan J., Miles, Evan S., Irvine-Fynn, Tristram D.L., Rowan, Ann V.

“…While the supraglacial hydrology of debris-covered glaciers is relatively well studied, almost nothing is known about how water is transported beneath the…”
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Sub-regional variability in the influence of ice-contact lakes on Himalayan glaciers by Scoffield, Alex C., Rowan, Ann V., Quincey, Duncan J., Carrivick, Jonathan L., Sole, Andrew J., Cook, Simon J.

“…Abstract Ice-contact lakes modify glacier geometry and dynamics by shifting the majority of mass loss from the ice surface to the terminus. Lake-terminating…”
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