Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7732
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dc.contributor.authorallRoberts, J. L.; Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.authorallWarner, R. C.; Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.authorallYoung, D.; Institute of Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USAen
dc.contributor.authorallWright, A.; School of GeoSciences, University of Edinburgh Edinburgh, Scotland, UKen
dc.contributor.authorallvan Ommen, T. D.; Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.authorallBlankenship, D. D.; Institute of Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USAen
dc.contributor.authorallSiegert, M.; School of GeoSciences, University of Edinburgh Edinburgh, Scotland, UKen
dc.contributor.authorallYoung, N. W.; Department of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.authorallTabacco, I. E.; Geofisica, Universita di Milano, Milan, Italyen
dc.contributor.authorallForieri, A.; Geofisica, Universita di Milano, Milan, Italyen
dc.contributor.authorallPasserini, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.authorallZirizzotti, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallFrezzotti, M.; Agenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile, Rome, Italyen
dc.date.accessioned2012-02-16T10:11:30Zen
dc.date.available2012-02-16T10:11:30Zen
dc.date.issued2011-07-13en
dc.identifier.urihttp://hdl.handle.net/2122/7732en
dc.description.abstractIce thickness data over much of East Antarctica are sparse and irregularly distributed. This poses difficulties for reconstructing the homogeneous coverage needed to properly assess underlying sub-glacial morphology and fundamental geometric constraints on sea level rise. Here we introduce a new physically-based ice thickness interpolation scheme and apply this to existing ice thickness data in the Aurora Subglacial Basin region. The skill and robustness of the new reconstruction is demonstrated by comparison with new data from the ICECAP project. The interpolated morphology shows an extensive marine-based ice sheet, with considerably more area below sea-level than shown by prior studies. It also shows deep features connecting the coastal grounding zone with the deepest regions in the interior. This has implications for ice sheet response to a warming ocean and underscores the importance of obtaining additional high resolution data in these marginal zones for modelling ice sheet evolution.en
dc.language.isoEnglishen
dc.publisher.nameCopernicus Gesellschaft GMBHen
dc.relation.ispartofThe Cryosphereen
dc.relation.ispartofseries3/5 (2011)en
dc.subjectIceen
dc.subjectCryosphereen
dc.subjectRES systemsen
dc.subjectIce thicknessen
dc.titleRefined broad-scale sub-glacial morphology of Aurora Subglacial Basin, East Antarctica derived by an ice-dynamics-based interpolation schemeen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber551-560en
dc.identifier.URLhttp://www.the-cryosphere.net/5/551/2011/en
dc.subject.INGV02. Cryosphere::02.02. Glaciers::02.02.04. Iceen
dc.identifier.doi10.5194/tc-5-551-2011en
dc.relation.referencesAllison, I., Alley, R. B., Fricker, H. A., Thomas, R. H., and Warner, R.: Ice sheet mass balance and sea level, Antarct. Sci., 21, 413– 426, doi:10.1017/S0954102009990137, 2009. Bamber, J. L., Gomez-Dans, J. L., and Griggs, J. A.: A new 1 km digital elevation model of the Antarctic derived from combined satellite radar and laser data - Part 1: Data and methods, The Cryosphere, 3, 101–111, doi:10.5194/tc-3-101-2009, 2009. Blankenship, D., Morse, D.,Finn, C., Bell, R., Peters, M., Kempf, S., Hodge, S., Studinger, M., Behrendt, J., and Brozena, J.: Geological controls on the initiation of rapid basal motion for West Antarctic Ice Streams: A geophysical perspective including new airborne radar sounding and laser altimetry results, in: The West Antarctic Ice Sheet: Behavior and Environment, Antarctic Research Series, edited by: Alley, R. and Bindschadler, R., 77, 105– 121, American Geophysical Union, Washington, D.C., 2001. Holt, J., Blankenship, D., Morse, D., Young, D., Peters, M., Kempf, S., Richter, T., Vaughan, D., and Corr, H.: New boundary conditions for the West Antarctic ice sheet: Subglacial topography of the Thwaites and Smith Glacier catchments, Geophys. Res. Lett., 33, L09502, doi:10.1029/2005GL025561, 2006. Le Brocq, A., Payne, A., and Siegert, M.: West Antarctic balance calculations: Impact of flux-routing algorithm, smoothing algorithm and topography, Comput. Geosci., 32,, 1780–1795, 2006. Lythe, M. B., Vaughan, D. G., and the BEDMAP Consortium: BEDMAP: A new ice thickness and subglacial topographic model of Antarctica, J. Geophys. Res., 106, 11335–11351, 2001. Mercer, J.: West Antarctic ice sheet and CO2 greenhouse effect: a threat of disaster, Nature, 271, 312–325, 1978. Peters, M., Blankenship, D., and Morse, D.: Analysis techniques for coherent airborne radar sounding: Application to West Antarctic ice streams, J. Geophys. Res., 110, B06303, doi:10.1029/2004JB003222, 2005. Pettit, E. and Waddington, E.: Ice flow at low deviatoric stress, J. Glaciol., 49, 359–369, 2003. Pritchard, H., Arthern, R., Vaughan, D. G., and Edwards, L.: Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets, Nature, 461, 971–975, doi:10.1038/nature08471, 2009. Siegert, M.: Antarctic subglacial topography and ice sheet evolution, Earth Surf. Proc. Land., 33, 646–660, doi:10.1002/esp.1670, 2008. Soille, P., Vogt., J., and Colombo, R.: Carving and adaptive drainage enforcement of grid digital elevation models,Water Resour. Res., 39(13), doi:10.1029/2002WR001879, 2003. Testut, L., Hurd, R., Coleman, R., Fr´ed´erique, R., and Legr´esy, B.: Comparison between computed balance velocities and GPS measurements in the Lambert Glacier basin, East Antarctica, Ann. Glaciol., 37, 337–343, 2003. Thomas, R.: The dynamics of marine ice sheets, J. Glaciol., 24, 167–177, 1979. Urbini, S., Cafarella, L., Zirizzotti, A., Tabacco, I., Boltari, C., Baskaradas, J., and Young, N.: RES data analysis on the Shackleton Ice Shelf, Ann. Geophys-Italy, 53, 79–87, doi:10.4401/ag- 4563, 2010. van de Berg, W. J., van den Broeke, M. R., Reijmer, C. H., and van Meijgaard, E.: Reassessment of the Antarctic surface mass balance using calibrated ou tput of a regional atmospheric climate model, J. Geophys. Res., 111, doi:10.1029/2005JD006495, 2006. Velicogna, I.: Increasing rates of ice mass loss from the Greenland and Antarctic ice sheets revealed by GRACE, Geophys. Res. Lett., 36, doi:10.1029/2009GL040222, 2009. Warner, R. C. and Budd, W. F.: Derivation of ice thickness and bedrock topography in data-gap regions over Antarctica, Ann. Glaciol., 31, 191–197, 2000. Weertman, J.: Stability of the junction of an ice sheet and an ice shelf, J. Glaciol., 13, 3–11, 1974. Wright, A., Young, D., Roberts, J., Dowdeswell, J., Bamber, J., Young, N., LeBrocq, A.,Warner, R., Payne, A., Blankenship, D., van Ommen, T., and Siegert, M.: Evidence for a hydrological connection between the ice divide and ice sheet margin in the Aurora Subglacial Basin sector of East Antarctica, submitted to J. Geophys. Res-Earth, 2011. Young, D., Wright, A., Roberts, J., Warner, R., Young, N., Greenbaum, J., Schroeder, D., Holt, J., Sugden, D., Blankenship, D., van Ommen, T., and Siegert, M.: Ice-covered fjords indicate a dynamic East Antarctic Ice Sheet margin in the Aurora Subglacial Basin, Nature, 474, 72–75, doi:10.1038/nature10114, 2011. Young, N., Goodwin, I., Hazelton, N., and Thwaites, R.: Measured velocities and ice flow in Wilkes Land, Antarctica, Ann. Glaciol., 12, 192–197, 1989a. Young, N., Malcolm, P., Mantell, P., and McGibbon, E.: Velocity and surface-lowering measurements on Law Dome, Antarctica, Ann. Glaciol., 12, 220, 1989b.en
dc.description.obiettivoSpecifico3.8. Geofisica per l'ambienteen
dc.description.journalTypeJCR Journalen
dc.description.fulltextopenen
dc.relation.issn1994-0416en
dc.relation.eissn1994-0424en
dc.contributor.authorRoberts, J. L.en
dc.contributor.authorWarner, R. C.en
dc.contributor.authorYoung, D.en
dc.contributor.authorWright, A.en
dc.contributor.authorvan Ommen, T. D.en
dc.contributor.authorBlankenship, D. D.en
dc.contributor.authorSiegert, M.en
dc.contributor.authorYoung, N. W.en
dc.contributor.authorTabacco, I. E.en
dc.contributor.authorForieri, A.en
dc.contributor.authorPasserini, A.en
dc.contributor.authorZirizzotti, A.en
dc.contributor.authorFrezzotti, M.en
dc.contributor.departmentDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.departmentDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.departmentInstitute of Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USAen
dc.contributor.departmentSchool of GeoSciences, University of Edinburgh Edinburgh, Scotland, UKen
dc.contributor.departmentDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.departmentInstitute of Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USAen
dc.contributor.departmentSchool of GeoSciences, University of Edinburgh Edinburgh, Scotland, UKen
dc.contributor.departmentDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australiaen
dc.contributor.departmentGeofisica, Universita di Milano, Milan, Italyen
dc.contributor.departmentGeofisica, Universita di Milano, Milan, Italyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentAgenzia nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile, Rome, Italyen
item.grantfulltextopen-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.classification.parent02. Cryosphere-
crisitem.author.deptDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australia-
crisitem.author.deptDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australia-
crisitem.author.deptInstitute for Geophysics, University of Texas at Austin, USA-
crisitem.author.deptSchool of GeoSciences, University of Edinburgh Edinburgh, Scotland, UK-
crisitem.author.deptDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australia-
crisitem.author.deptSchool of Geographical Sciences, University of Bristol, UK-
crisitem.author.deptDepartment of Sustainability, Environment, Water, Population and Communities, Australian Antarctic Division, Hobart, Tasmania, Australia and Antarctic Climate and Ecosystems Cooperative Research Centre, Private Bag 80, Hobart, Tasmania 7001, Australia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptENEA-CRE, Casaccia, Rome, Italy-
crisitem.author.orcid0000-0001-7586-9219-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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