Search Results - "DOW, CHRISTINE F."

The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective by Dow, Christine F.

“…Subglacial hydrology is an important component of the ice dynamic system in Antarctica but is challenging to investigate due to the large spatial scales of the…”
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Seasonal Acceleration of Petermann Glacier, Greenland, From Changes in Subglacial Hydrology by Ehrenfeucht, Shivani, Morlighem, Mathieu, Rignot, Eric, Dow, Christine F., Mouginot, Jeremie

“…Petermann Glacier is a major outlet glacier of northern Greenland that drains a marine‐based basin vulnerable to destabilization from enhanced oceanic and…”
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Drygalski Ice Tongue stability influenced by rift formation and ice morphology by Indrigo, Christine, Dow, Christine F., Greenbaum, Jamin S., Morlighem, Mathieu

“…The Drygalski Ice Tongue in East Antarctica stretches 90 km into the Ross Sea and influences the local ocean circulation, and persistence of the Terra Nova Bay…”
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Subglacial Freshwater Drainage Increases Simulated Basal Melt of the Totten Ice Shelf by Gwyther, David E., Dow, Christine F., Jendersie, Stefan, Gourmelen, Noel, Galton‐Fenzi, Benjamin K.

“…Subglacial freshwater discharge from beneath Antarctic glaciers likely has a strong impact on ice shelf basal melting. However, the difficulty in directly…”
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A quantitative method for deriving salinity of subglacial water using ground-based transient electromagnetics by Killingbeck, Siobhan F., Dow, Christine F., Unsworth, Martyn J.

“…Liquid water can exist at temperatures well below freezing beneath glaciers and ice sheets, where subglacial water systems, fresh and saline, have been shown…”
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A semi-automated, GIS-based framework for the mapping of supraglacial hydrology by Bash, Eleanor A, Shellian, Colette, Dow, Christine F, Mcdermid, Greg, Kochtitzky, Will, Medrzycka, Dorota, Copland, Luke

“…Supraglacial drainage networks play an integral role in both glacier dynamics and run-off timing, and mapping them provides insight into their role in glacial…”
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Water blister geomorphology and subglacial drainage sediments: an example from the bed of the Fennoscandian Ice Sheet in SW Finland by Mäkinen, Joni, Dow, Christine F., Ahokangas, Elina, Ojala, Antti, Kajuutti, Kari, Kautto, Juulia, Palmu, Jukka-Pekka

“…Abstract This study presents the first light detection and ranging (LiDAR)-based morphometric description of a water blister from a past ice-sheet bed caused…”
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Application of an improved surface energy balance model to two large valley glaciers in the St. Elias Mountains, Yukon by Hill, Tim, Dow, Christine F., Bash, Eleanor A., Copland, Luke

“…Glacier surficial melt rates are commonly modelled using surface energy balance (SEB) models, with outputs applied to extend point-based mass-balance…”
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SHMIP The subglacial hydrology model intercomparison Project by DE FLEURIAN, BASILE, WERDER, MAURO A., BEYER, SEBASTIAN, BRINKERHOFF, DOUGLAS J., DELANEY, IAN, DOW, CHRISTINE F., DOWNS, JACOB, GAGLIARDINI, OLIVIER, HOFFMAN, MATTHEW J., HOOKE, ROGER LeB, SEGUINOT, JULIEN, SOMMERS, ALEAH N.

“…Subglacial hydrology plays a key role in many glaciological processes, including ice dynamics via the modulation of basal sliding. Owing to the lack of an…”
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A Multi-Resolution Approach to Point Cloud Registration without Control Points by Bash, Eleanor A., Wecker, Lakin, Rahman, Mir Mustafizur, Dow, Christine F., McDermid, Greg, Samavati, Faramarz F., Whitehead, Ken, Moorman, Brian J., Medrzycka, Dorota, Copland, Luke

“…Terrestrial photographic imagery combined with structure-from-motion (SfM) provides a relatively easy-to-implement method for monitoring environmental systems,…”
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Getz Ice Shelf melt enhanced by freshwater discharge from beneath the West Antarctic Ice Sheet by Wei, Wei, Blankenship, Donald D, Greenbaum, Jamin S, Gourmelen, Noel, Dow, Christine F, Richter, Thomas G, Greene, Chad A, Young, Duncan A, Lee, SangHoon, Kim, Tae-Wan, Lee, Won Sang, Assmann, Karen M

“…Antarctica's Getz Ice Shelf has been rapidly thinning in recent years, producing more meltwater than any other ice shelf in the world. The influx of fresh…”
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Wet subglacial bedforms of the NE Greenland Ice Stream shear margins by Riverman, Kiya L., Anandakrishnan, Sridhar, Alley, Richard B., Holschuh, Nicholas, Dow, Christine F., Muto, Atsuhiro, Parizek, Byron R., Christianson, Knut, Peters, Leo E.

“…Abstract We describe elongate, wet, subglacial bedforms in the shear margins of the NE Greenland Ice Stream and place some constraints on their formation…”
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Observations of submesoscale eddy-driven heat transport at an ice shelf calving front by Friedrichs, Drew M., McInerney, Jasmin B. T., Oldroyd, Holly J., Lee, Won Sang, Yun, Sukyoung, Yoon, Seung-Tae, Stevens, Craig L., Zappa, Christopher J., Dow, Christine F., Mueller, Derek, Sepúlveda Steiner, Oscar, Forrest, Alexander L.

“…Abstract Antarctica’s ice shelves buttress the continent’s terrestrial ice, helping slow the loss of grounded ice into the ocean and limiting sea level rise…”
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Long‐Term Support of an Active Subglacial Hydrologic System in Southeast Greenland by Firn Aquifers by Poinar, Kristin, Dow, Christine F, Andrews, Lauren C

“…The state of the subglacial hydrologic system, which can modify ice motion, is sensitive to the volume and rate of meltwater reaching it. Bare-ice regions…”
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Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier by Hayden, Anna-Mireilla, Dow, Christine F.

“…Abstract Hydrologic pathways beneath ice sheets and glaciers play an important role in regulating ice flow. Antarctica has experienced, and will continue to…”
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The impact of surface melt rate and catchment characteristics on Greenland Ice Sheet moulin inputs by Hill, Tim, Dow, Christine F

“…The supraglacial drainage system of the Greenland Ice Sheet, in combination with surface melt rate, controls the rate of water flow into moulins, a major…”
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Limited Impact of Subglacial Supercooling Freeze‐on for Greenland Ice Sheet Stratigraphy by Dow, Christine F., Karlsson, Nanna B., Werder, Mauro A.

“…Large units of disrupted radiostratigraphy (UDR) are visible in many radio‐echo sounding data sets from the Greenland Ice Sheet. This study investigates…”
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Fine‐Scale Geothermal Heat Flow in Antarctica Can Increase Simulated Subglacial Melt Estimates by McCormack, Felicity S., Roberts, Jason L., Dow, Christine F., Stål, Tobias, Halpin, Jacqueline A., Reading, Anya M., Siegert, Martin J.

“…Antarctic geothermal heat flow (GHF) affects the thermal regime of ice sheets and simulations of ice and subglacial meltwater discharge to the ocean, but…”
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Modeling the Dynamics of Supraglacial Rivers and Distributed Meltwater Flow With the Subaerial Drainage System (SaDS) Model by Hill, Tim, Dow, Christine F.

“…Meltwater produced at the surface of glaciers and ice sheets has important implications for basal sliding rates and therefore ice flow velocities. In order to…”
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Basal conditions of Denman Glacier from glacier hydrology and ice dynamics modeling by McArthur, Koi, McCormack, Felicity S, Dow, Christine F

“…Basal sliding in Antarctic glaciers is often modeled using a friction law that relates basal shear stresses to the effective pressure. As few ice sheet models…”
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