Search Results - (Author, Cooperation:J. L. Bamber)
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1Latest Papers from Table of Contents or Articles in PressK. H. Kjaer ; S. A. Khan ; N. J. Korsgaard ; J. Wahr ; J. L. Bamber ; R. Hurkmans ; M. van den Broeke ; L. H. Timm ; K. K. Kjeldsen ; A. A. Bjork ; N. K. Larsen ; L. T. Jorgensen ; A. Faerch-Jensen ; E. Willerslev
American Association for the Advancement of Science (AAAS)
Published 2012Staff ViewPublication Date: 2012-08-04Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Computer Simulation ; *Global Warming ; Greenland ; *Ice Cover ; Models, Theoretical ; PhotographyPublished by: -
2Latest Papers from Table of Contents or Articles in PressB. Wouters ; A. Martin-Espanol ; V. Helm ; T. Flament ; J. M. van Wessem ; S. R. Ligtenberg ; M. R. van den Broeke ; J. L. Bamber
American Association for the Advancement of Science (AAAS)
Published 2015Staff ViewPublication Date: 2015-05-23Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressJ. L. Bamber ; M. J. Siegert ; J. A. Griggs ; S. J. Marshall ; G. Spada
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-08-31Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressK. K. Kjeldsen ; N. J. Korsgaard ; A. A. Bjork ; S. A. Khan ; J. E. Box ; S. Funder ; N. K. Larsen ; J. L. Bamber ; W. Colgan ; M. van den Broeke ; M. L. Siggaard-Andersen ; C. Nuth ; A. Schomacker ; C. S. Andresen ; E. Willerslev ; K. H. Kjaer
Nature Publishing Group (NPG)
Published 2015Staff ViewPublication Date: 2015-12-18Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Climate Change/*statistics & numerical data ; Greenland ; History, 20th Century ; History, 21st Century ; *Ice Cover ; Models, Theoretical ; Observation ; Photography ; Reproducibility of Results ; Seawater/analysis ; *Spatio-Temporal Analysis ; TemperaturePublished by: -
5Latest Papers from Table of Contents or Articles in PressM. A. Depoorter ; J. L. Bamber ; J. A. Griggs ; J. T. Lenaerts ; S. R. Ligtenberg ; M. R. van den Broeke ; G. Moholdt
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-09-17Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Antarctic Regions ; *Freezing ; *Ice Cover ; *Models, Theoretical ; Satellite CommunicationsPublished by: -
6Articles: DFG German National LicensesStaff View
ISSN: 1432-0894Source: Springer Online Journal Archives 1860-2000Topics: GeosciencesPhysicsNotes: Abstract A simple climate model has been developed to investigate the existence of the small ice cap instability in the Southern Hemisphere. The model consists of four coupled components: an atmospheric energy balance model, a thermodynamic snow-sea ice model, an oceanic mixed layer model and a terrestrial ice model. Results from a series of experiments involving different degrees of coupling in the model show that the instability appears only in those cases when an explicit representation of the Antarctic ice sheet is not included in the model. In order to determine which physical processes in the ice sheet model lead to a stabilization of the system we have conducted several sensitivity experiments in each of which a given ice sheet process has been removed from the control formulation of the model. Results from these experiments suggest that the feedback between the elevation of the ice sheet and the snow accumulation-ice ablation balance is responsible for the disappearance of the small ice cap instability in our simulation. In the model, the mass balance of the ice sheet depends on the air temperature at sea level corrected for altitude and it is, therefore, a function of surface elevation. This altitude-mass balance feedback effectively decouples the location of the ice edge from any specific sea level isotherm, thus decreasing the model sensitivity to the albedo-temperature feedback, which is responsible for the appearance of the instability. It is also shown that the elevation-radiative cooling feedback tends to stabilize the ice sheet, although its effect does not seem to be strong enough to remove the instability. Another interesting result is that for those simulations which include the terrestrial ice model with elevation-dependent surface mass balance, hysteresis is exhibited, where for a given level of external forcing, two stable solutions with different, non-zero ice-sheet volume and area and different air and ocean temperature fields occur. However, no unstable transition between the two solutions is ever observed. Our results suggest that the small ice cap instability mechanism could be unsuitable for explaining the inception of glaciation in Antarctica.Type of Medium: Electronic ResourceURL: