Results 41 to 50 of about 47,826 (311)

An ice-sheet scale comparison of eskers with modelled subglacial drainage routes [PDF]

, 2015
Eskers record the signature of channelised meltwater drainage during deglaciation providing vital information on the nature and evolution of subglacial drainage.
Stokes, C.R., C.D. Clark (630927), Storrar, RD, Clark, CD, Tarasov, L, Stokes, Chris R., Hillier, J.K., Clark, C.D., Livingstone, SJ, Clark, Chris D., C.R. Stokes (630946), Tarasov, L., Livingstone, S.J., Stephen J. Livingstone (3691018), Tarasov, Lev, Livingstone, Stephen J., John Hillier (1254873), Storrar, Robert D., R. Storrar (630947), Hillier, JK, Hillier, John K., L. Tarasov (7191965), Storrar, R.D., Stokes, CR   +23 more
core   +1 more source

Seasonal Arctic sea ice forecasting with probabilistic deep learning

Nature Communications, 2021
Accurate seasonal forecasts of sea ice are highly valuable, particularly in the context of sea ice loss due to global warming. A new machine learning tool for sea ice forecasting offers a substantial increase in accuracy over current physics-based ...
Tom R. Andersson, J. Scott Hosking, María Pérez-Ortiz, Brooks Paige, Andrew Elliott, Chris Russell, Stephen Law, Daniel C. Jones, Jeremy Wilkinson, Tony Phillips, James Byrne, Steffen Tietsche, Beena Balan Sarojini, Eduardo Blanchard-Wrigglesworth, Yevgeny Aksenov, Rod Downie, Emily Shuckburgh   +16 more
doaj   +1 more source

Direct measurement of optical properties of glacier ice using a photon-counting diffuse LiDAR

Journal of Glaciology, 2022
The production of meltwater from glacier ice, which is exposed at the margins of land ice during the summer, is responsible for a large proportion of glacier mass loss.
Markus Allgaier, Matthew G. Cooper, Anders E. Carlson, Sarah W. Cooley, Jonathan C. Ryan, Brian J. Smith   +5 more
doaj   +1 more source

Development of a Bioaerosol single particle detector (BIO IN) for the Fast Ice Nucleus CHamber FINCH [PDF]

, 2010
In this work we present the setup and first tests of our new BIO IN detector. This detector was constructed to classify atmospheric ice nuclei (IN) for their biological content. It is designed to be coupled to the Fast Ice Nucleus CHamber FINCH.
U. Bundke, B. Nillius, Bundke, Ulrich, H. Bingemer, Jaenicke, Ruprecht, Reimann, Bernd, B. Reimann, R. Jaenicke, Bingemer, Heinz, Nillius, Bjorn   +9 more
core   +1 more source

On the nonlinear viscosity of the orthotropic bulk rheology

Journal of Glaciology, 2022
We compare different ways the bulk flow nonlinearity of glacier ice can be captured in an orthotropic rheology. Specifically, we compare the unapproximated orthotropic rheology, derived from plastic potential theory, to existing approximations that ...
Nicholas M. Rathmann, David A. Lilien
doaj   +1 more source

Can uncertainties in sea ice albedo reconcile patterns of data-model discord for the Pliocene and 20th/21st centuries? [PDF]

, 2014
General Circulation Model simulations of the mid-Pliocene warm period (mPWP, 3.264 to 3.025 Myr ago) currently underestimate the level of warming that proxy data suggest existed at high latitudes, with discrepancies of up to 11°C for sea surface ...
Haywood, Alan, Wade, Bridget, Francis, JE, Francis, Jane, Wade, Bridget S., Hill, Daniel J., Hill, DJ, Haywood, Alan M., Dowsett, Harry, Pope, James O., Howell, Fergus, Pope, James, Pickering, Steven, Howell, FW, Dowsett, Harry J., Pickering, SJ, Pickering, Steven J., Salzmann, U, Howell, Fergus W., Dolan, Aisling, Dolan, Aisling M., Haywood, AM, Salzmann, Ulrich, Francis, Jane E., Dolan, AM, Dowsett, HJ, Hill, Daniel, Pope, JO, Wade, BS   +28 more
core   +1 more source

Using Icepack to reproduce ice mass balance buoy observations in landfast ice: improvements from the mushy-layer thermodynamics [PDF]

The Cryosphere
Icepack (v1.1.0) – the column thermodynamics model of the Community Ice CodE (CICE) version 6 – is used to assess how changing the thermodynamics from the Bitz and Lipscomb (1999) physics (hereafter BL99) to the mushy-layer physics impacts the model ...
M. Plante, J.-F. Lemieux, L. B. Tremblay, A. Tivy, J. Angnatok, F. Roy, G. Smith, F. Dupont, A. K. Turner   +8 more
doaj   +1 more source

Microstructure evolution of young sea ice from a Svalbard fjord using micro-CT analysis

Journal of Glaciology, 2022
We analysed the three-dimensional microstructure of sea ice by means of X-ray-micro computed tomography. Microscopic (brine- and air- pore sizes, numbers and connectivity) and macroscopic (salinity, density, porosity) properties of young Arctic sea ice ...
Martina Lan Salomon, Sönke Maus, Chris Petrich   +2 more
doaj   +1 more source

Density matters: ice compressibility and glacier mass estimation

Journal of Glaciology, 2022
Ice flow models typically assume that ice is incompressible, a reasonable assumption because ice density changes are indeed small and have a correspondingly small effect on the overall mass balance of glaciers and ice sheets.
Bradley Paul Lipovsky
doaj   +1 more source

Ice sheet extent and early deglacial history of the southwestern sector of the Greenland ice sheet [PDF]

, 2009
The offshore and coastal geomorphology of southwest Greenland records evidence for the advance and decay of the Greenland Ice Sheet during the Last Glacial Maximum.
Xu, S., Davies, Bethan J., Schnabel, C., Xu, Sheng, Sheng, X., Simpson, M.J.R., Simpson., M.J.R, Huybrechts, P., Roberts, David H., Long, A.J., Huybrechts, Philipe, Long, Antony J., Davies, B., Simpson, Matthew J.R., Schnabel, Christoph, Roberts, D.H., Davies, B.J.   +16 more
core   +1 more source