Publications
195 results found
Smith AM, Woodward J, Ross N, et al., 2018, Evidence for the long-term sedimentary environment in an Antarctic subglacial lake, EARTH AND PLANETARY SCIENCE LETTERS, Vol: 504, Pages: 139-151, ISSN: 0012-821X
Jordan TA, Martin C, Ferraccioli F, et al., 2018, Anomalously high geothermal flux near the South Pole, SCIENTIFIC REPORTS, Vol: 8, ISSN: 2045-2322
Jeofry H, Ross N, Le Brocq A, et al., 2018, Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations, NATURE COMMUNICATIONS, Vol: 9, ISSN: 2041-1723
Keen P, Saw K, Rundle N, et al., A mini corer for precision sampling of the water sediment interface of subglacial lakes and remote aqueous environments, Limnology and Oceanography: Methods, ISSN: 1541-5856
Rintoul SR, Chown SL, DeConto RM, et al., 2018, Choosing the future of Antarctica (vol 558, 233, 2018), NATURE, Vol: 562, Pages: E5-E5, ISSN: 0028-0836
Siegert MJ, Kennicutt MC, 2018, Governance of the exploration of subglacial Antarctica, Frontiers in Environmental Science, Vol: 6, ISSN: 2296-665X
Subglacial lakes, and their surrounding aqueous environments, are known to be viable yet extreme habitats for microbial life that may hold records of climate change spanning hundreds of thousands of years. Since the detection of Lake Vostok in 1996 plans have been developed to access, sample, and monitor these unique environments. Critical to these plans is assurance that contamination and disturbance is minimized in all aspects of the activity. Precisely how this is achieved has been a matter of international debate for many years culminating in the formulation of a “Code of Conduct” to guide responsible scientific exploration and stewardship of these pristine systems by the Scientific Committee on Antarctic research. The Code of Conduct was first introduced to the Antarctic Treaty Consultative Meeting in 2011, influencing planning for three exploration programs. In May 2018, following several recent and operational advances, Antarctic Treaty Parties agreed to its use and dissemination, ensuring that subglacial lakes exploration and access is undertaken in a responsible, defensible, and fact-based manner. As our knowledge of subglacial lakes improves, so too will our appreciation of their scientific value and potential vulnerability. In other regions of Antarctica where value and vulnerabilities are high, Antarctic Specially Protected Areas and Antarctic Specially Managed Areas ensure long-term protection whilst allowing scientific access and study. Such governance models will be applicable to the conservation and protection of subglacial lake systems as scientific understanding of their form and functioning advances.
Jordan TM, Williams CN, Schroeder DM, et al., 2018, A constraint upon the basal water distribution and thermal state of the Greenland Ice Sheet from radar bed echoes, CRYOSPHERE, Vol: 12, Pages: 2831-2854, ISSN: 1994-0416
Colleoni F, De Santis L, Siddoway CS, et al., 2018, Spatio-temporal variability of processes across Antarctic ice-bed-ocean interfaces (vol 9, 2289, 2018), NATURE COMMUNICATIONS, Vol: 9, ISSN: 2041-1723
Colleoni F, De Santis L, Siddoway CS, et al., 2018, Spatio-temporal variability of processes across Antarctic ice-bed-ocean interfaces, NATURE COMMUNICATIONS, Vol: 9, ISSN: 2041-1723
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- Citations: 1
Rintoul SR, Chown SL, DeConto RM, et al., 2018, Choosing the future of Antarctica, NATURE, Vol: 558, Pages: 233-241, ISSN: 0028-0836
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- Citations: 2
Jeofry H, Ross N, Corr HFJ, et al., 2018, A new bed elevation model for the Weddell Sea sector of the West Antarctic Ice Sheet, Earth System Science Data, Vol: 10, Pages: 711-725, ISSN: 1866-3508
We present a new digital elevation model (DEM) of the bed, with a 1 km gridding, of the Weddell Sea (WS) sector of the West Antarctic Ice Sheet (WAIS). The DEM has a total area of ∼ 125 000 km2 covering the Institute, Möller and Foundation ice streams, as well as the Bungenstock ice rise. In comparison with the Bedmap2 product, our DEM includes new aerogeophysical datasets acquired by the Center for Remote Sensing of Ice Sheets (CReSIS) through the NASA Operation IceBridge (OIB) program in 2012, 2014 and 2016. We also improve bed elevation information from the single largest existing dataset in the region, collected by the British Antarctic Survey (BAS) Polarimetric radar Airborne Science Instrument (PASIN) in 2010–2011, from the relatively crude measurements determined in the field for quality control purposes used in Bedmap2. While the gross form of the new DEM is similar to Bedmap2, there are some notable differences. For example, the position and size of a deep subglacial trough (∼ 2 km below sea level) between the ice-sheet interior and the grounding line of the Foundation Ice Stream have been redefined. From the revised DEM, we are able to better derive the expected routing of basal water and, by comparison with that calculated using Bedmap2, we are able to assess regions where hydraulic flow is sensitive to change. Given the potential vulnerability of this sector to ocean-induced melting at the grounding line, especially in light of the improved definition of the Foundation Ice Stream trough, our revised DEM will be of value to ice-sheet modelling in efforts to quantify future glaciological changes in the region and, from this, the potential impact on global sea level. The new 1 km bed elevation product of the WS sector can be found at https://doi.org/10.5281/zenodo.1035488.
Jeofry H, Ross N, Corr HFJ, et al., A new bed elevation model for the Weddell Sea sector of the West Antarctic Ice Sheet, Earth System Science Data, ISSN: 1866-3508
Wang B, Sun B, Martin C, et al., 2018, Summit of the East Antarctic Ice Sheet underlain by thick ice-crystal fabric layers linked to glacial–interglacial environmental change, Geological Society, London, Special Publications, Vol: 461, Pages: 131-143, ISSN: 0305-8719
Siegert MJ, Jamieson SSR, White D, 2018, Exploration of subsurface Antarctica: uncovering past changes and modern processes, Geological Society, London, Special Publications, Vol: 461, Pages: 1-6, ISSN: 0305-8719
Wrona T, Wolovick MJ, Ferraccioli F, et al., 2018, Position and variability of complex structures in the central East Antarctic Ice Sheet, Geological Society, London, Special Publications, Vol: 461, Pages: 113-129, ISSN: 0305-8719
Siegert MJ, 2018, A 60-year international history of Antarctic subglacial lake exploration, Geological Society, London, Special Publications, Vol: 461, Pages: 7-21, ISSN: 0305-8719
Beem LH, Cavitte MGP, Blankenship DD, et al., 2018, Ice-flow reorganization within the East Antarctic Ice Sheet deep interior, Geological Society, London, Special Publications, Vol: 461, Pages: 35-47, ISSN: 0305-8719
Siegert MJ, Kulessa B, Bougamont M, et al., 2018, Antarctic subglacial groundwater: a concept paper on its measurement and potential influence on ice flow, Geological Society, London, Special Publications, Vol: 461, Pages: 197-213, ISSN: 0305-8719
Jeofry H, Ross N, Corr HFJ, et al., 2018, A deep subglacial embayment adjacent to the grounding line of Institute Ice Stream, West Antarctica, Geological Society, London, Special Publications, Vol: 461, Pages: 161-173, ISSN: 0305-8719
Morlighem M, Williams CN, Rignot E, et al., 2017, BedMachine v3: Complete Bed Topography and Ocean Bathymetry Mapping of Greenland From Multibeam Echo Sounding Combined With Mass Conservation, GEOPHYSICAL RESEARCH LETTERS, Vol: 44, Pages: 11051-11061, ISSN: 0094-8276
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- Citations: 33
Parrenin F, Cavitte MGP, Blankenship DD, et al., 2017, Is there 1.5-million-year-old ice near Dome C, Antarctica?, CRYOSPHERE, Vol: 11, Pages: 2427-2437, ISSN: 1994-0416
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- Citations: 8
Siegert MJ, 2017, Why Should We Worry About Sea Level Change?, Frontiers for Young Minds, Vol: 5
Roberts J, Curran M, Poynter S, et al., 2017, Correlation confidence limits for unevenly sampled data, COMPUTERS & GEOSCIENCES, Vol: 104, Pages: 120-124, ISSN: 0098-3004
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- Citations: 1
Jordan TM, Cooper MA, Schroeder DM, et al., 2017, Self-affine subglacial roughness: consequences for radar scattering and basal water discrimination in northern Greenland, CRYOSPHERE, Vol: 11, Pages: 1247-1264, ISSN: 1994-0416
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- Citations: 9
Graham FS, Roberts JL, Galton-Fenzi BK, et al., 2017, A high-resolution synthetic bed elevation grid of the Antarctic continent, EARTH SYSTEM SCIENCE DATA, Vol: 9, Pages: 267-279, ISSN: 1866-3508
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- Citations: 3
Williams CN, Cornford SL, Jordan TM, et al., 2017, Generating synthetic fjord bathymetry for coastal Greenland, CRYOSPHERE, Vol: 11, Pages: 363-380, ISSN: 1994-0416
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- Citations: 3
Siegert M, 2017, Vulnerable Antarctic ice shelves, NATURE CLIMATE CHANGE, Vol: 7, Pages: 11-12, ISSN: 1758-678X
Kennicutt MC, Kim YD, Rogan-Finnemore M, et al., 2016, Delivering 21st century Antarctic and Southern Ocean science, ANTARCTIC SCIENCE, Vol: 28, Pages: 407-423, ISSN: 0954-1020
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- Citations: 7
Maritati A, Aitken ARA, Young DA, et al., 2016, The tectonic development and erosion of the Knox Subglacial Sedimentary Basin, East Antarctica, GEOPHYSICAL RESEARCH LETTERS, Vol: 43, Pages: 10728-10737, ISSN: 0094-8276
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- Citations: 5
Siegert MJ, Ross N, Li J, et al., 2016, Subglacial controls on the flow of Institute Ice Stream, West Antarctica, ANNALS OF GLACIOLOGY, Vol: 57, Pages: 19-24, ISSN: 0260-3055
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- Citations: 8
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