Publications by year
In Press
Cornford SL, Martin DF, Payne AJ, Ng EG, Le Brocq AM, Gladstone RM, Edwards TL, Shannon SR, Agosta C, van den Broeke MR, et al (In Press). Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate.
Abstract:
Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate
Abstract. We use the BISICLES adaptive mesh ice sheet model to carry out one, two, and three century simulations of the fast-flowing ice streams of the West Antarctic Ice Sheet. Each of the simulations begins with a geometry and velocity close to present day observations, and evolves according to variation in meteoric ice accumulation, ice shelf melting, and mesh resolution. Future changes in accumulation and melt rates range from no change, through anomalies computed by atmosphere and ocean models driven by the E1 and A1B emissions scenarios, to spatially uniform melt rates anomalies that remove most of the ice shelves over a few centuries. We find that variation in the resulting ice dynamics is dominated by the choice of initial conditions, ice shelf melt rate and mesh resolution, although ice accumulation affects the net change in volume above flotation to a similar degree. Given sufficient melt rates, we compute grounding line retreat over hundreds of kilometers in every major ice stream, but the ocean models do not predict such melt rates outside of the Amundsen Sea Embayment until after 2100. Sensitivity to mesh resolution is spurious, and we find that sub-kilometer resolution is needed along most regions of the grounding line to avoid systematic under-estimates of the retreat rate, although resolution requirements are more stringent in some regions – for example the Amundsen Sea Embayment – than others – such as the Möller and Institute ice streams.
Abstract.
Jeofry H, Ross N, Le Brocq A, Graham A, Li J, Gogineni P, Morlighem M, Jordan T, Siegert MJ (In Press). Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations. Nature Communications
2021
Matsuoka K, Skoglund A, Roth G, de Pomereu J, Griffiths H, Headland R, Herried B, Katsumata K, Le Brocq A, Licht K, et al (2021). Quantarctica, an integrated mapping environment for Antarctica, the Southern Ocean, and sub-Antarctic islands.
Environmental Modelling and Software,
140Abstract:
Quantarctica, an integrated mapping environment for Antarctica, the Southern Ocean, and sub-Antarctic islands
Quantarctica (https://www.npolar.no/quantarctica) is a geospatial data package, analysis environment, and visualization platform for the Antarctic Continent, Southern Ocean (>40oS), and sub-Antarctic islands. Quantarctica works with the free, cross-platform Geographical Information System (GIS) software QGIS and can run without an Internet connection, making it a viable tool for fieldwork in remote areas. The data package includes basemaps, satellite imagery, terrain models, and scientific data in nine disciplines, including physical and biological sciences, environmental management, and social science. To provide a clear and responsive user experience, cartography and rendering settings are carefully prepared using colour sets that work well for typical data combinations and with consideration of users with common colour vision deficiencies. Metadata included in each dataset provides brief abstracts for non-specialists and references to the original data sources. Thus, Quantarctica provides an integrated environment to view and analyse multiple Antarctic datasets together conveniently and with a low entry barrier.
Abstract.
2019
Mansell DT, Palmer S, Le Brocq A (2019). Subglacial controls on dynamic thinning at Trinity-Wykeham Glacier, Prince of Wales Ice Field, Canadian Arctic. International Journal of Remote Sensing
Mills SC, Le Brocq AM, Winter K, Smith M, Hillier J, Ardakova E, Boston CM, Sugden D, Woodward J (2019). Testing and application of a model for snow redistribution (Snow Blow) in the Ellsworth Mountains, Antarctica.
Journal of Glaciology,
65(254), 957-970.
Abstract:
Testing and application of a model for snow redistribution (Snow Blow) in the Ellsworth Mountains, Antarctica
Wind-driven snow redistribution can increase the spatial heterogeneity of snow accumulation on ice caps and ice sheets, and may prove crucial for the initiation and survival of glaciers in areas of marginal glaciation. We present a snowdrift model (Snow-Blow), which extends and improves the model of Purves, Mackaness and Sugden (1999, Journal of Quaternary Science 14, 313-321). The model calculates spatial variations in relative snow accumulation that result from variations in topography, using a digital elevation model (DEM) and wind direction as inputs. Improvements include snow redistribution using a flux routing algorithm, DEM resolution independence and the addition of a slope curvature component. This paper tests Snow-Blow in Antarctica (a modern environment) and reveals its potential for application in palaeoenvironmental settings, where input meteorological data are unavailable and difficult to estimate. Specifically, Snow-Blow is applied to the Ellsworth Mountains in West Antarctica where ablation is considered to be predominantly related to wind erosion processes. We find that Snow-Blow is able to replicate well the existing distribution of accumulating snow and snow erosion as recorded in and around Blue Ice Areas. Lastly, a variety of model parameters are tested, including depositional distance and erosion vs wind speed, to provide the most likely input parameters for palaeoenvironmental reconstructions.
Abstract.
2016
Siegert MJ, Ross N, Le Brocq AM (2016). Recent advances in understanding Antarctic subglacial lakes and hydrology.
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences,
374(2059).
Abstract:
Recent advances in understanding Antarctic subglacial lakes and hydrology
It is now well documented that over 400 subglacial lakes exist across the bed of the Antarctic Ice Sheet. They comprise a variety of sizes and volumes (from the approx. 250km long Lake Vostok to bodies of water less than 1km in length), relate to a number of discrete topographic settings (from those contained within valleys to lakes that reside in broad flat terrain) and exhibit a range of dynamic behaviours (from 'active' lakes that periodically outburst some or all of their water to those isolated hydrologically for millions of years). Here we critique recent advances in our understanding of subglacial lakes, in particular since the last inventory in 2012. We show that within 3 years our knowledge of the hydrological processes at the ice-sheet base has advanced considerably. We describe evidence for further 'active' subglacial lakes, based on satellite observation of ice-surface changes, and discuss why detection of many 'active' lakes is not resolved in traditional radio-echo sounding methods. We go on to review evidence for largescale subglacial water flow in Antarctica, including the discovery of ancient channels developed by former hydrological processes. We end by predicting areas where future discoveries may be possible, including the detection, measurement and significance of groundwater (i.e. water held beneath the ice-bed interface).
Abstract.
2015
Rose KC, Ross N, Jordan TA, Bingham RG, Corr HFJ, Le Brocq AM, Ferraccioli F, Rippin DM, Siegert MJ (2015). Ancient pre-glacial erosion surfaces preserved beneath the West Antarctic Ice Sheet. Earth Surface Dynamics, 3, 139-152.
Cornford SL, Martin DF, Payne AJ, Ng EG, Le Brocq AM, Gladstone RM, Edwards TL, Shannon SR, Agosta C, Van Den Broeke MR, et al (2015). Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate.
Cryosphere,
9(4), 1579-1600.
Abstract:
Century-scale simulations of the response of the West Antarctic Ice Sheet to a warming climate
We use the BISICLES adaptive mesh ice sheet model to carry out one, two, and three century simulations of the fast-flowing ice streams of the West Antarctic Ice Sheet, deploying sub-kilometer resolution around the grounding line since coarser resolution results in substantial underestimation of the response. Each of the simulations begins with a geometry and velocity close to present-day observations, and evolves according to variation in meteoric ice accumulation rates and oceanic ice shelf melt rates. Future changes in accumulation and melt rates range from no change, through anomalies computed by atmosphere and ocean models driven by the E1 and A1B emissions scenarios, to spatially uniform melt rate anomalies that remove most of the ice shelves over a few centuries. We find that variation in the resulting ice dynamics is dominated by the choice of initial conditions and ice shelf melt rate and mesh resolution, although ice accumulation affects the net change in volume above flotation to a similar degree. Given sufficient melt rates, we compute grounding line retreat over hundreds of kilometers in every major ice stream, but the ocean models do not predict such melt rates outside of the Amundsen Sea Embayment until after 2100. Within the Amundsen Sea Embayment the largest single source of variability is the onset of sustained retreat in Thwaites Glacier, which can triple the rate of eustatic sea level rise.
Abstract.
Bingham RG, Rippin DM, Karlsson NB, Corr HFJ, Ferraccioli F, Jordan TA, Le Brocq AM, Rose KC, Ross N, Siegert MJ, et al (2015). Ice-flow structure and ice dynamic changes in the Weddell Sea sector of West Antarctica from radar-imaged internal layering.
Journal of Geophysical Research F: Earth SurfaceAbstract:
Ice-flow structure and ice dynamic changes in the Weddell Sea sector of West Antarctica from radar-imaged internal layering
©2015. The Authors. Recent studies have aroused concerns over the potential for ice draining the Weddell Sea sector of West Antarctica to figure more prominently in sea level contributions should buttressing from the Filchner-Ronne Ice Shelf diminish. To improve understanding of how ice stream dynamics there evolved through the Holocene, we interrogate radio echo sounding (RES) data from across the catchments of Institute and Möller Ice Streams (IIS and MIS), focusing especially on the use of internal layering to investigate ice-flow change. As an important component of this work, we investigate the influence that the orientation of the RES acquisition track with respect to ice flow exerts on internal layering and find that this influence is minimal unless a RES flight track parallels ice flow. We also investigate potential changes to internal layering characteristics with depth to search for important temporal transitions in ice-flow regime. Our findings suggest that ice in northern IIS, draining the Ellsworth Subglacial Highlands, has retained its present ice-flow configuration throughout the Holocene. This contrasts with less topographically constrained ice in southern IIS and much of MIS, whose internal layering evinces spatial changes to the configuration of ice flow over the past ~10,000years. Our findings confirm Siegert et al.'s (2013) inference that fast flow was diverted from Bungenstock Ice Rise during the Late Holocene and suggest that this may have represented just one component of wider regional changes to ice flow occurring across the IIS and MIS catchments as the West Antarctic Ice Sheet has thinned since the Last Glacial Maximum.
Abstract.
2014
Rose KC, Ross N, Bingham RG, Corr HFJ, Ferraccioli F, Jordan TA, Le Brocq AM, Rippin DM, Siegert MJ (2014). A temperate former West Antarctic ice sheet suggested by an extensive zone of subglacial meltwater channels.
Geology,
42(11), 971-974.
Abstract:
A temperate former West Antarctic ice sheet suggested by an extensive zone of subglacial meltwater channels
Several recent studies predict that the West Antarctic Ice Sheet will become increasingly unstable under warmer conditions. Insights on such change can be assisted through investigations of the subglacial landscape, which contains imprints of former ice-sheet behavior. Here, we present radio-echo sounding data and satellite imagery revealing a series of ancient large sub-parallel subglacial bed channels preserved in the region between the Möller and Foundation Ice Streams, West Antarctica. We suggest that these newly recognized channels were formed by significant meltwater routed along the icesheet bed. The volume of water required is likely substantial and can most easily be explained by water generated at the ice surface. The Greenland Ice Sheet today exemplifies how significant seasonal surface melt can be transferred to the bed via englacial routing. For West Antarctica, the Pliocene (2.6-5.3 Ma) represents the most recent sustained period when temperatures could have been high enough to generate surface melt comparable to that of present-day Greenland. We propose, therefore, that a temperate ice sheet covered this location during Pliocene warm periods.
Abstract.
Rose KC, Ross N, Bingham RG, Corr HFJ, Ferraccioli F, Jordan TA, Le Brocq AM, Rippin DM, Siegert MJ (2014). Ancient pre-glacial erosion surfaces preserved beneath the West Antarctic Ice Sheet. , 2(2), 681-713.
Death R, Wadham JL, Monteiro F, Le Brocq AM, Tranter M, Ridgwell A, Dutkiewicz S, Raiswell R (2014). Antarctic ice sheet fertilises the Southern Ocean.
Biogeosciences,
11(10), 2635-2643.
Abstract:
Antarctic ice sheet fertilises the Southern Ocean
Southern Ocean (SO) marine primary productivity (PP) is strongly influenced by the availability of iron in surface waters, which is thought to exert a significant control upon atmospheric CO2 concentrations on glacial/interglacial timescales. The zone bordering the Antarctic Ice Sheet exhibits high PP and seasonal plankton blooms in response to light and variations in iron availability. The sources of iron stimulating elevated SO PP are in debate. Established contributors include dust, coastal sediments/upwelling, icebergs and sea ice. Subglacial meltwater exported at the ice margin is a more recent suggestion, arising from intense iron cycling beneath the ice sheet. Icebergs and subglacial meltwater may supply a large amount of bioavailable iron to the SO, estimated in this study at 0.07-0.2 Tg yr-1. Here we apply the MIT global ocean model (Follows et al. 2007) to determine the potential impact of this level of iron export from the ice sheet upon SO PP. The export of iron from the ice sheet raises modelled SO PP by up to 40%, and provides one plausible explanation for seasonally very high in situ measurements of PP in the near-coastal zone. The impact on SO PP is greatest in coastal regions, which are also areas of high measured marine PP. These results suggest that the export of Antarctic runoff and icebergs may have an important impact on SO PP and should be included in future biogeochemical modelling. copyright © Author(s) 2014.
Abstract.
Rippin DM, Bingham RG, Jordan TA, Wright AP, Ross N, Corr HFJ, Ferraccioli F, Le Brocq AM, Rose KC, Siegert MJ, et al (2014). Basal roughness of the Institute and Möller Ice Streams, West Antarctica: Process determination and landscape interpretation. Geomorphology
Siegert MJ, Ross N, Corr H, Smith B, Jordan T, Bingham RG, Ferraccioli F, Rippin DM, Le Brocq A (2014). Boundary conditions of an active west antarctic subglacial lake: Implications for storage of water beneath the ice sheet.
Cryosphere,
8(1), 15-24.
Abstract:
Boundary conditions of an active west antarctic subglacial lake: Implications for storage of water beneath the ice sheet
Repeat-pass ICESat altimetry has revealed 124 discrete surface height changes across the Antarctic Ice Sheet, interpreted to be caused by subglacial lake discharges (surface lowering) and inputs (surface uplift). Few of these active lakes have been confirmed by radio-echo sounding (RES) despite several attempts (notable exceptions are Lake Whillans and three in the Adventure Subglacial Trench). Here we present targeted RES and radar altimeter data from an "active lake" location within the upstream Institute Ice Stream, into which at least 0.12 km3 of water was previously calculated to have flowed between October 2003 and February 2008. We use a series of transects to establish an accurate depiction of the influences of bed topography and ice surface elevation on water storage potential. The location of surface height change is downstream of a subglacial hill on the flank of a distinct topographic hollow, where RES reveals no obvious evidence for deep (> 10 m) water. The regional hydropotential reveals a sink coincident with the surface change, however. Governed by the location of the hydrological sink, basal water will likely "drape" over topography in a manner dissimilar to subglacial lakes where flat strong specular RES reflections are measured. The inability of RES to detect the active lake means that more of the Antarctic ice sheet bed may contain stored water than is currently appreciated. Variation in ice surface elevation data sets leads to significant alteration in calculations of the local flow of basal water indicating the value of, and need for, high-resolution altimetry data in both space and time to establish and characterise subglacial hydrological processes.© Author(s) 2014. CC Attribution 3.0 License.
Abstract.
Siegert MJ, Ross N, Corr H, Smith B, Jordan T, Bingham RG, Ferraccioli F, Rippin DM, Le Brocq A (2014). Erratum: Corrigendum to "boundary conditions of an active West Antarctic subglacial lake: Implications for storage of water beneath the ice sheet" published in the Cryosphere, 8, 15-24, 2014. Cryosphere, 8(1).
Favier L, Durand G, Cornford SL, Gudmundsson GH, Gagliardini O, Gillet-Chaulet F, Zwinger T, Payne AJ, Le Brocq AM (2014). Retreat of Pine Island Glacier controlled by marine ice-sheet instability.
Nature Climate Change,
4(2), 117-121.
Abstract:
Retreat of Pine Island Glacier controlled by marine ice-sheet instability
Over the past 40 years Pine Island Glacier in West Antarctica has thinned at an accelerating rate, so that at present it is the largest single contributor to sea-level rise in Antarctica. In recent years, the grounding line, which separates the grounded ice sheet from the floating ice shelf, has retreated by tens of kilometres. At present, the grounding line is crossing a retrograde bedrock slope that lies well below sea level, raising the possibility that the glacier is susceptible to the marine ice-sheet instability mechanism. Here, using three state-of-the-art ice-flow models, we show that Pine Island Glacier's grounding line is probably engaged in an unstable 40 km retreat. The associated mass loss increases substantially over the course of our simulations from the average value of 20 Gt yr -1 observed for the 1992-2011 period, up to and above 100 Gt yr -1, equivalent to 3.5-10 mm eustatic sea-level rise over the following 20 years. Mass loss remains elevated from then on, ranging from 60 to 120 Gt yr -1. © 2014 Macmillan Publishers Limited.
Abstract.
Wright AP, Le Brocq AM, Cornford SL, Bingham RG, Corr HFJ, Ferraccioli F, Jordan TA, Payne AJ, Rippin DM, Ross N, et al (2014). Sensitivity of the Weddell Sea sector ice streams to sub-shelf melting and surface accumulation.
Cryosphere,
8(6), 2119-2134.
Abstract:
Sensitivity of the Weddell Sea sector ice streams to sub-shelf melting and surface accumulation
A recent ocean modelling study indicates that possible changes in circulation may bring warm deep-ocean water into direct contact with the grounding lines of the Filchner-Ronne ice streams, suggesting the potential for future ice losses from this sector equivalent to ∼0.3 m of sea-level rise. Significant advancements have been made in our knowledge of both the basal topography and ice velocity in the Weddell Sea sector, and the ability to accurately model marine ice sheet dynamics, thus enabling an assessment to be made of the relative sensitivities of the diverse collection of ice streams feeding the Filchner-Ronne Ice Shelf. Here we use the BISICLES ice sheet model, which employs adaptive-mesh refinement to resolve grounding line dynamics, to carry out such an assessment. The impact of realistic perturbations to the surface and sub-shelf mass balance forcing fields from our 2000-year "reference" model run indicate that both the Institute and Möller ice streams are highly sensitive to changes in basal melting either near to their respective grounding lines, or in the region of the ice rises within the Filchner-Ronne Ice Shelf. These same perturbations have little impact, however, on the Rutford, Carlson or Foundation ice streams, while the Evans Ice Stream is found to enter a phase of unstable retreat only after melt at its grounding line has increased by 50% of likely present-day values.
Abstract.
Ross N, Jordan TA, Bingham RG, Corr HFJ, Ferraccioli F, Le Brocq A, Rippin DM, Wright AP, Siegert MJ (2014). The Ellsworth Subglacial Highlands: Inception and retreat of the West Antarctic Ice Sheet.
GEOLOGICAL SOCIETY OF AMERICA BULLETIN,
126(1-2), 3-15.
Author URL.
2013
Cornford SL, Martin DF, Graves DT, Ranken DF, Le Brocq AM, Gladstone RM, Payne AJ, Ng EG, Lipscomb WH (2013). Adaptive mesh, finite volume modeling of marine ice sheets.
Journal of Computational Physics,
232(1), 529-549.
Abstract:
Adaptive mesh, finite volume modeling of marine ice sheets
Continental scale marine ice sheets such as the present day West Antarctic Ice Sheet are strongly affected by highly localized features, presenting a challenge to numerical models. Perhaps the best known phenomenon of this kind is the migration of the grounding line - the division between ice in contact with bedrock and floating ice shelves - which needs to be treated at sub-kilometer resolution. We implement a block-structured finite volume method with adaptive mesh refinement (AMR) for three dimensional ice sheets, which allows us to discretize a narrow region around the grounding line at high resolution and the remainder of the ice sheet at low resolution. We demonstrate AMR simulations that are in agreement with uniform mesh simulations, but are computationally far cheaper, appropriately and efficiently evolving the mesh as the grounding line moves over significant distances. As an example application, we model rapid deglaciation of Pine Island Glacier in West Antarctica caused by melting beneath its ice shelf. © 2012 Elsevier Inc.
Abstract.
Death R, Wadham JL, Monteiro F, Le Brocq AM, Tranter M, Ridgwell A, Dutkiewicz S, Raiswell R (2013). Antarctic Ice Sheet fertilises the Southern Ocean. , 10(7), 12551-12570.
Siegert MJ, Ross N, Corr H, Smith B, Jordan T, Bingham R, Ferraccioli F, Rippin D, Le Brocq A (2013). Boundary conditions of an active West Antarctic subglacial lake: implications for storage of water beneath the ice sheet. , 7(3), 2979-2999.
Le Brocq AM, Ross N, Griggs JA, Bingham RG, Corr HFJ, Ferraccioli F, Jenkins A, Jordan TA, Payne AJ, Rippin DM, et al (2013). Evidence from ice shelves for channelized meltwater flow beneath the Antarctic Ice Sheet. Nature Geoscience, 6(11), 945-948.
Jordan TA, Ferraccioli F, Ross N, Corr HFJ, Leat PT, Bingham RG, Rippin DM, le Brocq A, Siegert MJ (2013). Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data.
Tectonophysics,
585, 137-160.
Abstract:
Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data
The Weddell Sea Rift was a major focus for Jurassic extension and magmatism during the early stages of Gondwana break-up and underlies the Weddell Sea Embayment, which separates East Antarctica from a collage of crustal blocks in West Antarctica. Newly-collected aerogeophysical data over the catchments of Institute and Möller ice streams reveal the inland extent of the Weddell Sea Rift against the Ellsworth-Whitmore block and a hitherto unknown major left-lateral strike slip boundary between East and West Antarctica. Aeromagnetic and gravity anomalies define the regional subglacial extent of Proterozoic basement, Middle Cambrian rift-related volcanic rocks, Jurassic intrusions and sedimentary rocks of inferred post-Jurassic age. 2D and 3D magnetic depth-to-source estimates were used to help constrain joint magnetic and gravity models for the region. The models reveal that Proterozoic crust similar to that exposed at Haag Nunataks, extends southeast of the Ellsworth Mountains to the margin of the Coastal Basins. Thick granitic Jurassic intrusions are modelled at the transition between the Ellsworth-Whitmore block and the thinner crust of the Weddell Sea Rift and within the Pagano Shear Zone. The crust beneath the inland extension of the Weddell Sea Rift is modelled as being either ~. 4. km thinner compared to the adjacent Ellsworth-Whitmore block or as underlain by an up to 8. km thick mafic underplate. © 2012.
Abstract.
Wright AP, Le Brocq AM, Cornford SL, Siegert MJ, Bingham RG, Corr HFJ, Ferraccioli F, Jordan TA, Rippin DM, Ross N, et al (2013). Sensitivity of the Weddell Sea sector ice streams to sub-shelf melting and surface accumulation. , 7(6), 5475-5508.
2012
Whitehouse PL, Bentley MJ, Le Brocq AM (2012). A deglacial model for Antarctica: geological constraints and glaciological modelling as a basis for a new model of Antarctic glacial isostatic adjustment.
QUATERNARY SCIENCE REVIEWS,
32, 1-24.
Author URL.
Gladstone RM, Lee V, Rougier J, Payne AJ, Hellmer H, Le Brocq A, Shepherd A, Edwards TL, Gregory J, Cornford SL, et al (2012). Calibrated prediction of Pine Island Glacier retreat during the 21st and 22nd centuries with a coupled flowline model.
EARTH AND PLANETARY SCIENCE LETTERS,
333, 191-199.
Author URL.
Wright AP, Young DA, Roberts JL, Schroeder DM, Bamber JL, Dowdeswell JA, Young NW, Le Brocq AM, Warner RC, Payne AJ, et al (2012). Evidence of a hydrological connection between the ice divide and ice sheet margin in the Aurora Subglacial Basin, East Antarctica.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,
117 Author URL.
Ross N, Bingham RG, Corr HFJ, Ferraccioli F, Jordan TA, Le Brocq A, Rippin DM, Young D, Blankenship DD, Siegert MJ, et al (2012). Steep reverse bed slope at the grounding line of the Weddell Sea sector in West Antarctica.
NATURE GEOSCIENCE,
5(6), 393-396.
Author URL.
2011
Bentley MJ, Sugden DE, Fogwill CJ, Le Brocq AM, Hubbard AL, Dunai TJ, Freeman SPHT (2011). Deglacial history of the West Antarctic Ice Sheet in the Weddell Sea embayment: Constraints on past ice volume change: REPLY.
GEOLOGY,
39(5), E240-E240.
Author URL.
Le Brocq AM, Bentley MJ, Hubbard A, Fogwill CJ, Sugden DE, Whitehouse PL (2011). Reconstructing the Last Glacial Maximum ice sheet in the Weddell Sea embayment, Antarctica, using numerical modelling constrained by field evidence.
QUATERNARY SCIENCE REVIEWS,
30(19-20), 2422-2432.
Author URL.
Bentley MJ, Christoffersen P, Hodgson DA, Smith AM, Tulaczyk S, Le Brocq AM (2011). Subglacial Lake Sediments and Sedimentary Processes: Potential Archives of Ice Sheet Evolution, Past Environmental Change, and the Presence of Life. In Siegert MJ, Kennicutt MC, Bindschadler RA (Eds.) Antarctic Subglacial Aquatic Environments.
2010
Timmerman R, Le Brocq AM, Deen T, Domack E, Dutrieux P, Galton-Fenzi B, Hellmer H, Humbert A, Jansen D, Jenkins A, et al (2010). A consistent data set of Antarctic ice sheet topography, cavity geometry, and global bathymetry. Earth System Science Data, 2, 261-273.
Timmermann R, Le Brocq A, Deen T, Domack E, Dutrieux P, Galton-Fenzi B, Hellmer H, Humbert A, Jansen D, Jenkins A, et al (2010). A consistent dataset of Antarctic ice sheet topography, cavity geometry, and global bathymetry. , 3(2), 231-257.
Le Brocq AM, Payne AJ, Vieli A (2010). An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1). Earth System Science Data, 2, 247-260.
Le Brocq AM, Payne AJ, Vieli A (2010). An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1). , 3(1), 195-230.
Bentley MJ, Fogwill CJ, Le Brocq AM, Hubbard AL, Sugden DE, Dunai TJ, Freeman SPHT (2010). Deglacial history of the West Antarctic Ice Sheet in the Weddell Sea embayment: Constraints on past ice volume change.
GEOLOGY,
38(5), 411-414.
Author URL.
2009
Le Brocq AM, Payne AJ, Siegert MJ, Alley RB (2009). A subglacial water-flow model for West Antarctica.
JOURNAL OF GLACIOLOGY,
55(193), 879-888.
Author URL.
Bamber JL, Riva REM, Vermeersen BLA, LeBrocq AM (2009). Reassessment of the Potential Sea-Level Rise from a Collapse of the West Antarctic Ice Sheet.
SCIENCE,
324(5929), 901-903.
Author URL.
2008
Wright AP, Siegert MJ, Le Brocq AM, Gore DB (2008). High sensitivity of subglacial hydrological pathways in Antarctica to small ice-sheet changes.
GEOPHYSICAL RESEARCH LETTERS,
35(17).
Author URL.
Le Brocq AM, Hubbard A, Bentley MJ, Bamber JL (2008). Subglacial topography inferred from ice surface terrain analysis reveals a large un-surveyed basin below sea level in East Antarctica.
GEOPHYSICAL RESEARCH LETTERS,
35(16).
Author URL.
2007
Siegert MJ, Le Brocq A, Payne AJ (2007). Hydrological Connections between Antarctic Subglacial Lakes, the Flow of Water beneath the East Antarctic Ice Sheet and Implications for Sedimentary Processes. In (Ed) Glacial Sedimentary Processes and Products, 3-10.
Siegert MJ, Le Brocq AM, Payne AJ (2007). Hydrological connections between Antarctic subglacial lakes and the flow of water beneath the East Antarctic Ice Sheet. In Hambrey MJ, Christoffersen P, Glasser NF, Hubbard B (Eds.) Glacial sedimentary processes and products, Wiley-Blackwell, 3-10.
2006
Le Brocq AM, Payne AJ, Siegert MJ (2006). West Antarctic balance calculations: Impact of flux-routing algorithm, smoothing algorithm and topography.
COMPUTERS & GEOSCIENCES,
32(10), 1780-1795.
Author URL.
