Ice sheets
A new approach for simulating the paleo-evolution of the Northern Hemisphere ice sheets
... lowest ice-volume values throughout the whole ...NH ice-volume variability on millennial ...of ice volume throughout most of the ...in ice volume in all NH ice sheets but ...
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Evolution of the large-scale atmospheric circulation in response to changing ice sheets over the last glacial cycle
... Although the simple linear model captures the main fea- tures of the LGM stationary waves with surprising quantita- tive accuracy, this is likely a fortuitous result from the choice of parameter values and in particular ...
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Climatic Conditions for modelling the Northern Hemisphere ice sheets throughout the ice age cycle
... the ice sheets in the Northern Hemisphere grew to the size and extent that has been observed, and why they retreated quickly at the termination of each 100 kyr cycle is still a challenge (Tarasov and ...
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Ice sheets as a missing source of silica to the polar oceans
... and ice sheets have largely been neglected in previous DSi budgets, despite covering up to 30% of land surface area during glacial cycles and discharging vast quantities of fresh water and sediment into the ...
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Advanced Methods for the Analysis of Radar Sounder Data Acquired at the Ice Sheets
... the ice sheets, the proposed method jointly uses RS and ALT data to estimate 3D maps of the ice surface, bedrock interface and ice thickness, with the highest overall quality and at the most ...
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Modelling the Early Weichselian Eurasian Ice Sheets: role of ice shelves and influence of ice-dammed lakes
... huge ice sheet, in agreement with the QUEEN reconstruction (Svendsen et ...the ice sheet model ...the ice sheet. In particular, the modelled ice sheet does not reach the southern limit of the ...
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Comparison of surface mass balance of ice sheets simulated by positive-degree-day method and energy balance approach
... and ice from a surplus in the surface energy balance when the ice sheet surface tem- perature reaches melting ...and ice sheets, which are not accounted for by the PDD method, are important ...
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Individual and combined effects of ice sheets and precession on MIS-13 climate
... the ice sheets reach their max- imum LGM size ...small ice sheets, but globally the amplitude is much ...large ice sheets cause an anticyclonic anomaly north of about 60 ◦ N, but ...
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Interaction of ice sheets and climate during the past 800 000 years
... of ice sheets on the Northern ...the ice-albedo feedback and the surface-height-temperature ...long-term ice-sheet–climate feedback amplifies global tem- perature anomalies from PI with 4 % ...
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On the reconstruction of palaeo-ice sheets: Recent advances and future challenges
... sheet topography and meltwater fluxes on the ocean-climate system are also of high interest. Earth system Models of Intermediate Complexity (EMIC) provide representation of relevant Earth system processes at less than ...
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Layer disturbances and the radio-echo free zone in ice sheets
... landic ice sheets often reveals a layer in the lowest hundreds of meters above bedrock more or less free of radio echoes, known as the echo-free zone ...the ice core is lost due to distur- bances ...
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On the effect of orbital forcing on mid-Pliocene climate, vegetation and ice sheets
... 405 ppm with other greenhouse gases (GHGs) at the pre- industrial level, as well as orography, ice sheets and vegeta- tion from PRISM3D reconstructions. Results of eight models participating in PlioMIP ...
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The microbiome of glaciers and ice sheets
... in other cryospheric systems. Cyanobacteria Leptolyngbya and Phormidium were key in Gokul et al. 86 study demonstrating their importance as cryoconite engineer species (see section above), while among the heterotrophs, ...
Ice-shelf buttressing and the stability of marine ice sheets
... one ice thickness, in the vicinity of the ground- ing line (Pattyn et ...large-scale ice sheets using structured grids with that degree of spatial resolution is not ...calculate, ice flux at ...
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Ice streams in the Laurentide Ice Sheet: Identification, characteristics and comparison to modern ice sheets
... of ice streams in the Laurentide Ice Sheet (LIS) based on a new mapping inventory that includes previously hypothesised ice streams and includes a concerted effort to search for others from across ...
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The silicon cycle impacted by past ice sheets
... palaeo-ice sheets since the ...rapid ice sheet wastage in the δ 30 Si composition of a high latitude North Atlantic sediment core record, which corroborates the hypothesis that terrestrial ice ...
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An improved algorithm for polar cloud-base detection by ceilometer over the ice sheets
... the ice sheets indicates the need for an improved understanding of the evolution of macro- and mi- crophysical cloud ...thin ice layers are frequently occurring over the ice ...these ...
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Experiments on the interaction of ice sheets with the polar oceans
... Antarctic Ice Sheets (WAIS and EAIS), Bellingshausen Sea (BS), Amundsen Sea (AS) and the Ross and Ronne ice ...the ice shelves (clockwise from top) Vigridisen (V), Nivlisen (N), 17 East (17E), ...
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A moving-point approach to model shallow ice sheets: a study case with radially symmetrical ice sheets
... an ice sheet or a glacier, ice is modelled as a flow which follows the Stokes equations of fluid flows (Stokes, 1845), even though the flow is ...of ice sheets and use a thin layer ...
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Cyberinfrastructure for Remote Sensing of Ice Sheets
... of Ice Sheets (CReSIS) and the polar science community in general, the Cyberinfrastructure Center for Polar Science (CICPS), with experts in Polar Science, Remote Sensing and Cyberinfrastructure, has been ...
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