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Title | High-resolution modelling of the Antarctic surface mass balance, application for the twentieth, twenty first and twenty second centuries | Type | Journal Article | ||
Year | 2013 | Publication | CLIMATE DYNAMICS | Abbreviated Journal | |
Volume | 41 | Issue | 11-12 | Pages | 3247-3260- |
Keywords | Downscaling, Surface mass balance, Surface energy balance, Orographic precipitation, Antarctica, Sea-level, Climate-change, Ice-sheet, | ||||
Abstract | About 75 % of the Antarctic surface mass gain occurs over areas below 2,000 m asl, which cover 40 % of the grounded ice-sheet. As the topography is complex in many of these regions, surface mass balance modelling is highly dependent on horizontal resolution, and studying the impact of Antarctica on the future rise in sea level requires physical approaches. We have developed a computationally efficient, physical downscaling model for high-resolution (15 km) long-term surface mass balance (SMB) projections. Here, we present results of this model, called SMHiL (surface mass balance high-resolution downscaling), which was forced with the LMDZ4 atmospheric general circulation model to assess Antarctic SMB variability in the twenty first and the twenty second centuries under two different scenarios. The higher resolution of SMHiL better reproduces the geographical patterns of SMB and increase significantly the averaged SMB over the grounded ice-sheet for the end of the twentieth century. A comparison with more than 3200 quality-controlled field data shows that LMDZ4 and SMHiL reproduce the observed values equally well. Nevertheless, field data below 2,000 m asl are too scarce to efficiently show the added value of SMHiL and measuring the SMB in these undocumented areas should be a future scientific priority. Our results suggest that running LMDZ4 at a finer resolution (15 km) may give a future increase in SMB in Antarctica that is about 30 % higher than by using its standard resolution (60 km) due to the higher increase in precipitation in coastal areas at 15 km. However, a part (~15 %) of these discrepancies could be an artefact from SMHiL since it neglects the foehn effect and likely overestimates the precipitation increase. Future changes in the Antarctic SMB at low elevations will result from the competition between higher snow accumulation and runoff. For this reason, developing downscaling models is crucial to represent processes in sufficient detail and correctly model the SMB in coastal areas. | ||||
Programme | 411,1013 | ||||
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Publisher | Springer Berlin Heidelberg | Place of Publication | Editor | ||
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ISSN | 0930-7575 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | yes | |||
Call Number | Serial | 4768 | |||
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Title | Invasion Dynamics of a Fish-Free Landscape by Brown Trout ( |
Type | Journal | ||
Year | 2013 | Publication | PLoS ONE | Abbreviated Journal | |
Volume | 8 | Issue | 8 | Pages | e71052- |
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Abstract | Metapopulation dynamics over the course of an invasion are usually difficult to grasp because they require large and reliable data collection, often unavailable. The invasion of the fish-free freshwater ecosystems of the remote sub-Antarctic Kerguelen Islands following man-made introductions of brown trout ( |
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Programme | 1041 | ||||
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Publisher | Public Library of Science | Place of Publication | Editor | ||
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ISSN | 1932-6203 | ISBN | Medium | ||
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Notes | Approved | yes | |||
Call Number | Serial | 4781 | |||
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Title | When morphology meets molecular data in crinoid phylogeny: a challenge.,54: 541-548. | Type | Journal Article | ||
Year | 2013 | Publication | Cahier de Biologie Marine | Abbreviated Journal | |
Volume | Issue | Pages | |||
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Programme | 1044;1124 | ||||
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ISSN | 0007-9723 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | yes | |||
Call Number | Serial | 4829 | |||
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Title | High-resolution crinoid phyletic inter-relationships inferred from molecular data. | Type | Journal Article | ||
Year | 2013 | Publication | Cahier de Biologie Marine | Abbreviated Journal | |
Volume | 54 | Issue | Pages | 511-523 | |
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Programme | 1044;1124 | ||||
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ISSN | 0007-9723 | ISBN | Medium | ||
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Notes | Approved | yes | |||
Call Number | Serial | 4830 | |||
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Title | Type | Conference - International - Communication | |||
Year | 2013 | Publication | Abbreviated Journal | ||
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Programme | 1124 | ||||
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Notes | Approved | yes | |||
Call Number | Serial | 4835 | |||
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Title | Type | Book Chapter | |||
Year | 2013 | Publication | Abbreviated Journal | ||
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Programme | 1057 | ||||
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Notes | Approved | yes | |||
Call Number | Serial | 4851 | |||
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Title | Type | Book Whole | |||
Year | 2013 | Publication | Abbreviated Journal | ||
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Programme | 1057 | ||||
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Notes | Approved | yes | |||
Call Number | Serial | 4856 | |||
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Author | Hreinsdottir Sigrun, Sigmundsson Freysteinn, Roberts Matthew J, Bjornsson Halldor, Grapenthin Ronni, Arason Pordur, Arnadottir Thora, Holmjarn Josef, Geirsson Halldor, Bennett Richard A, Gudmundsson Magnus T, Oddsson Bjorn, Ofeigsson Benedikt G, Villemin Thierry, Jonsson Thorsteinn, Sturkell Erik, Hoskuldsson Armann, Larsen Gudrun, Thordarson Thor, Oladottir Bergrun Arna, | ||||
Title | Volcanic plume height correlated with magma-pressure change at Grimsvotn Volcano, Iceland | Type | Journal Article | ||
Year | 2014 | Publication | Nature Geoscience | Abbreviated Journal | |
Volume | 7 | Issue | 3 | Pages | 214-218 |
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Programme | 316 | ||||
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Publisher | Nature Publishing Group | Place of Publication | Editor | ||
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ISSN | 1752-0894 | ISBN | Medium | ||
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Notes | Approved | yes | |||
Call Number | Serial | 4880 | |||
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Author | Bernard É, Friedt JM, Saintenoy A, Tolle F, Griselin M, Marlin C, |
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Title | Where does a glacier end? GPR measurements to identify the limits between valley slopes and actual glacier body. Application to the Austre Lovénbreen, Spitsbergen |
Type | Journal Article | ||
Year | 2014 | Publication | International Journal of Applied Earth Observation and Geoinformation | Abbreviated Journal | |
Volume | 27, Part A | Issue | A | Pages | 100-108 |
Keywords | Ground penetrating Radar, Glacier limit, Arctic, Spitsbergen, Polar glacier, |
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Programme | 1108,1111 | ||||
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ISSN | 0303-2434 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | yes | |||
Call Number | Serial | 4881 | |||
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Author | Huiskes Ad HL, Gremmen Niek JM, Bergstrom Dana M, Frenot Yves, Hughes Kevin A, Imura Satoshi, Kiefer Kate, Lebouvier Marc, Lee Jennifer E, Tsujimoto Megumu, Ware Chris, Van de Vijver Bart, Chown Steven L, | ||||
Title | Aliens in Antarctica: Assessing transfer of plant propagules by human visitors to reduce invasion risk | Type | Journal Article | ||
Year | 2014 | Publication | Biological Conservation | Abbreviated Journal | |
Volume | 171 | Issue | Pages | 278-284 | |
Keywords | Biological invasions, Propagule pressure, Risk assessment, Self-assessment, Tourism, Vessel size, | ||||
Abstract | |||||
Programme | 136 | ||||
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ISSN | 0006-3207 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | Approved | yes | |||
Call Number | Serial | 4882 | |||
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