Results 71 to 80 of about 662,315 (337)
Modelling landscape evolution under ice sheets [PDF]
Geomorphology, 2008 We use an ice sheet model (GLIMMER) with an erosion component to examine the evolution of landscapes under ice sheets over long time scales in hypothetical situations. GLIMMER is a fully coupled thermomechanical 3-dimensional ice sheet model with a sliding component.
Jamieson, S.S.R. +2 more
openaire +4 more sources
'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]
, 2007 A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown +5 more
core +1 more source
Probabilistic calibration of a Greenland Ice Sheet model using spatially resolved synthetic observations: toward projections of ice mass loss with uncertainties [PDF]
Geoscientific Model Development, 2014 Computer models of ice sheet behavior are important tools for projecting future sea level rise. The simulated modern ice sheets generated by these models differ markedly as input parameters are varied.
W. Chang +3 more
doaj +1 more source
Geoscientific Model Development, 2018 . In this paper, we present the GRISLI (Grenoble ice sheet and land ice) model in its newest revision (version 2.0). Whilst GRISLI is applicable to any given ice sheet, we focus here on the Antarctic ice sheet because it highlights the importance of ...
A. Quiquet +4 more
semanticscholar +1 more source
Comparison of thermodynamics solvers in the polythermal ice sheet model SICOPOLIS [PDF]
, 2015 In order to model the thermal structure of polythermal ice sheets accurately, energy-conserving schemes and correct tracking of the cold–temperate transition surface (CTS) are necessary.
R. Greve, H. Blatter
semanticscholar +1 more source
The Glimmer community ice sheet model [PDF]
Journal of Geophysical Research: Earth Surface, 2009 We present a detailed description of the Glimmer ice sheet model, comprising the physics represented in the model and the numerical techniques used. Established methods are combined with good software design to yield an adaptable and widely applicable model. A flexible framework for coupling Glimmer to global climate forcing is also described.
Rutt, IC +3 more
openaire +4 more sources
Pre-LGM Northern Hemisphere ice sheet topography [PDF]
, 2013 We here reconstruct the paleotopography of Northern Hemisphere ice sheets during the glacial maxima of marine isotope stages (MIS) 5b and 4.We employ a combined approach, blending geologically based reconstruction and numerical modeling, to arrive at ...
J. Fastook +5 more
core +1 more source
Geoscientific Model Development, 2019 . Providing reliable projections of the ice sheet contribution to future sea-level rise has become one of the main challenges of the ice sheet modelling community. To increase confidence in future projections, a good knowledge of the present-day state of
Sébastien Le clec’h +5 more
semanticscholar +1 more source
An initial intercomparison of atmospheric and oceanic climatology for the ICE-5G and ICE-4G models of LGM paleotopography [PDF]
, 2005 This paper investigates the impact of the new ICE-5G paleotopography dataset for Last Glacial Maximum (LGM) conditions on a coupled model simulation of the thermal and dynamical state of the glacial atmosphere and on both land surface and sea surface ...
A. Timmermann +45 more
core +2 more sources
Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function
FEBS Open Bio, EarlyView.We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke +4 more
wiley +1 more source