Results 41 to 50 of about 1,100,902 (296)

How might the North American ice sheet influence the northwestern Eurasian climate? [PDF]

Climate of the Past, 2015
It is now widely acknowledged that past Northern Hemisphere ice sheets covering Canada and northern Europe at the Last Glacial Maximum (LGM) exerted a strong influence on climate by causing changes in atmospheric and oceanic circulations.
P. Beghin, S. Charbit, C. Dumas, M. Kageyama, C. Ritz   +4 more
doaj   +1 more source

An ice-sheet modelling framework to determine vulnerable regions of the Greenland Ice Sheet in the past [PDF]

The Cryosphere
The contribution of the Greenland Ice Sheet (GrIS) to sea-level rise is accelerating and there is an urgent need to characterize which sectors of the ice sheet are the most vulnerable. Estimating the volume of Greenland ice that was lost during past warm
B. A. Keisling, J. M. Schaefer, J. M. Schaefer, R. M. DeConto, J. P. Briner, N. E. Young, C. K. Walcott-George, C. K. Walcott-George, G. Winckler, G. Winckler, A. Balter-Kennedy, S. Anandakrishnan   +11 more
doaj   +1 more source

A temperate former West Antarctic ice sheet suggested by an extensive zone of bed channels [PDF]

, 2014
We present radio-echo sounding data and satellite imagery, revealing a series of ancient large sub-parallel subglacial channels preserved in the region between the Möller and Foundation Ice Streams, West Antarctica.
Martin J. Siegert, Tom A. Jordan, Rippin, David M., Jordan, Tom A., Ross, N, Siegert, MJ, Corr, HFJ, Siegert, Martin J., Rippin, DM, Le Brocq, Anne, Hugh F.J. Corr, Jordan, TA, Kathryn C. Rose, Le Brocq, Anne M., Rose, Kathryn C., Bingham, RG, Le Brocq, AM, Anne M. Le Brocq, Ross, Neil, Fausto Ferraccioli, Rose, KC, Ferraccioli, F, Ferraccioli, Fausto, Corr, Hugh F.J., Robert G. Bingham, Neil Ross, David M. Rippin, Bingham, Robert G.   +27 more
core   +1 more source

Airborne radar evidence for tributary flow switching in Institute Ice Stream, West Antarctica: implications for ice sheet configuration and dynamics [PDF]

, 2015
Despite the importance of ice streaming to the evaluation of West Antarctic Ice Sheet (WAIS) stability we know little about mid- to long-term dynamic changes within the Institute Ice Stream (IIS) catchment.
Martin J. Siegert, Hugh F. J. Corr, Corr, Hugh, Bingham, RG, Woodward, John, Ross, Neil, Ross, N, Dunning, SA, Corr, Hugh F.J., Winter, K, Siegert, MJ, Robert G. Bingham, Winter, Kate, Dunning, Stuart, John Woodward, Neil Ross, Siegert, Martin, Corr, HFJ, Kate Winter, Dunning, Stuart A., Siegert, Martin J., Stuart A. Dunning, Bingham, Robert G., Woodward, J   +23 more
core   +1 more source

Microbial nitrogen cycling on the Greenland Ice Sheet [PDF]

, 2012
Nitrogen inputs and microbial nitrogen cycling were investigated along a 79 km transect into the Greenland Ice Sheet (GrIS) during the main ablation season in summer 2010. The depletion of dissolved nitrate and production of ammonium (relative to icemelt)
J. Telling, C. Bellas, Wadham, J.L., Hodson, A, I. Nias, Wadham, Jemma L, Tranter, Martyn, J. Cook, M. Stibal, Telling, J., Bellas, Christopher M, A. Hodson, A. M. Anesio, Hodson, A., Cook, J, Sole, A, G. Lis, Nias, Isabel, Tranter, M., Lis, G., Stibal, M, P. Nienow, Anesio, A.M., Stibal, Marek, Nienow, P, Anesio, A. M., Cook, J., Tranter, M, Anesio, Alexandre M, Stibal, M., Telling, J, Bellas, C, Bellas, C., Wadham, JL, Telling, Jon P, Anesio, AM, M. Tranter, Lis, G, Sole, A., Cook, Joe, J. L. Wadham, A. Sole, Wadham, J. L., Nias, I, Nias, I., Nienow, P.   +45 more
core   +2 more sources

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

Modelling Antarctic ice sheet sensitivity at atmospheric, bedrock and oceanic interfaces

All Earth
This study systematically investigates parameter sensitivity and regional variations at the ice sheet-atmosphere, ice sheet-bedrock, and ice sheet–ocean interfaces in the Antarctic Ice Sheet using the Parallel Ice Sheet Model. At the ice sheet–atmosphere
Fan Gao, Qiang Shen, Hansheng Wang, Liming Jiang, C. K. Shum, Yan An, Xu Zhang   +6 more
doaj   +1 more source

Biases in ice sheet models from missing noise-induced drift [PDF]

The Cryosphere
Most climatic and glaciological processes exhibit internal variability, which is omitted from many ice sheet model simulations. Prior studies have found that climatic variability can change ice sheet sensitivity to the long-term mean and trend in climate
A. A. Robel, V. Verjans, V. Verjans, A. A. Ambelorun   +3 more
doaj   +1 more source

A new approach to estimate ice dynamic rates using satellite observations in East Antarctica [PDF]

The Cryosphere, 2017
Mass balance changes of the Antarctic ice sheet are of significant interest due to its sensitivity to climatic changes and its contribution to changes in global sea level. While regional climate models successfully estimate mass input due to snowfall,
B. Kallenberg, P. Tregoning, J. F. Hoffmann, R. Hawkins, A. Purcell, S. Allgeyer   +5 more
doaj   +1 more source

Simulating the Early Holocene demise of the Laurentide Ice Sheet with BISICLES (public trunk revision 3298) [PDF]

Geoscientific Model Development, 2020
Simulating the demise of the Laurentide Ice Sheet covering Hudson Bay in the Early Holocene (10–7 ka) is important for understanding the role of accelerated changes in ice sheet topography and melt in the 8.2 ka event, a century long ...
I. S. O. Matero, I. S. O. Matero, L. J. Gregoire, R. F. Ivanovic   +3 more
doaj   +1 more source