Results 21 to 30 of about 3,287,043 (305)

Reconstructing ice-sheet accumulation rates at ridge B, East Antarctica [PDF]

, 2004
Understanding how ice sheets responded to past climate change is fundamental to forecasting how they will respond in the future. Numerical models calculating the evolution of ice sheets depend upon accumulation data, which are principally available from ...
Payne, Antony J, Leysinger Vieli, G.J.-M.C., Payne, A. J., Siegert, MJ, Payne, AJ, Leysinger Vieli, GJMC, Leysinger Vieli, Gwendolyn, Siegert, Martin J, Siegert, M. J., Martin J. Siegert, Antony J. Payne, Gwendolyn J.-M. C. Leysinger Vieli   +11 more
core   +1 more source

Variations in atmospheric dust loading since AD 1951 recorded in an ice core from the northern Tibetan Plateau

Annals of Glaciology, 2016
An ice core was extracted from the Zangser Kangri (ZK) ice field in the northern Tibetan Plateau (NTP), a location with limited instrumental and proxy records. In this paper, we present a continuous high–resolution dust concentration time series spanning
Wangbin Zhang, Shugui Hou, Wenling An, Liya Zhou, Hongxi Pang   +4 more
doaj   +1 more source

A glaciochemical study of the 120 m ice core from Mill Island, East Antarctica [PDF]

Climate of the Past, 2017
A 120 m ice core was drilled on Mill Island, East Antarctica (65°30′ S, 100°40′ E) during the 2009/2010 Australian Antarctic field season. Contiguous discrete 5 cm samples were measured for hydrogen peroxide, water stable isotopes, and trace ion ...
M. Inoue, M. A. J. Curran, A. D. Moy, T. D. van Ommen, A. D. Fraser, H. E. Phillips, I. D. Goodwin   +6 more
doaj   +1 more source

A first chronology for the East Greenland Ice-core Project (EGRIP) over the Holocene and last glacial termination [PDF]

Climate of the Past, 2020
This paper provides the first chronology for the deep ice core from the East Greenland Ice-core Project (EGRIP) over the Holocene and the late last glacial period.
S. Mojtabavi, S. Mojtabavi, S. Mojtabavi, F. Wilhelms, F. Wilhelms, E. Cook, S. M. Davies, G. Sinnl, M. Skov Jensen, D. Dahl-Jensen, D. Dahl-Jensen, A. Svensson, B. M. Vinther, S. Kipfstuhl, S. Kipfstuhl, G. Jones, N. B. Karlsson, N. B. Karlsson, S. H. Faria, S. H. Faria, S. H. Faria, V. Gkinis, H. A. Kjær, T. Erhardt, S. M. P. Berben, K. H. Nisancioglu, K. H. Nisancioglu, I. Koldtoft, S. O. Rasmussen   +28 more
doaj   +1 more source

New modeling of the Vostok ice flow line and implication for the glaciological chronology of the Vostok ice core [PDF]

, 2004
We have used new spaceborne (elevation) and airborne (ice thickness) data to constrain a 2D1/2 model of snow accumulation and ice flow along the Ridge B-Vostok station ice flow line (East Antarctica).
Ritz, C., Jouzel, J., Parrenin, F., Remy, F., Siegert, M. G., Siegert, M.J., Rémy, Florence   +6 more
core   +1 more source

The future of ice coring: International Partnerships in Ice Core Sciences (IPICS) [PDF]

PAGES news, 2006
Ice cores provide information about past climate and environmental conditions on timescales from decades to hundreds of millennia, and direct records of the composition of the atmosphere. As such, they are cornerstones of global change research. For example, ice cores play a central role in showing how closely climate and greenhouse gas concentrations ...
Brook, Edward J., Wolff, Eric W., Dahl-Jensen, Dorthe, Fischer, Hubertus, Steig, Eric J.   +4 more
  +7 more sources

Incorporation of particulates into accreted ice above subglacial Vostok lake, Antarctica [PDF]

, 2005
The nature of microscopic particulates in meteoric and accreted ice from the Vostok (Antarctica) ice core is assessed in conjunction with existing ice-core data to investigate the mechanism by which particulates are incorporated into refrozen lake water.
Priscu, JC, Royston-Bishop, G, Siegert, MJ, Tranter, M, Christner, BC, Lee, V, Christner, B., Priscu, J. C., Siegert, M. J., Royston-Bishop, G., Tranter, M., Lee, V.   +11 more
core   +1 more source

A multi-millennial record of rock glacier ice chemistry (Lazaun, Italy)

Frontiers in Earth Science, 2023
Active rock glaciers—known as mixtures of unconsolidated debris with interstitial ice, ice lenses or a core of massive ice—are widespread indicators of mountain permafrost. The age of a frozen rock glacier core in the Central European Alps (Lazaun, Italy)
Ulrike Nickus, Hansjörg Thies, Karl Krainer, Kathrin Lang, Volkmar Mair, David Tonidandel   +5 more
doaj   +1 more source

Ices in Starless and Starforming Cores [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractIcy grain mantles are commonly observed through infrared spectroscopy toward dense clouds, cloud cores, protostellar envelopes and protoplanetary disks. Up to 80% of the available oxygen, carbon and nitrogen are found in such ices; the most common ice constituents – H2O, CO2 and CO – are second in abundance only to H2 in many star forming ...
Oberg, Karin I., Boogert, A. C. Adwin, Pontoppidan, Klaus M., Broek, Saskia van den, van Dishoeck, Ewine F., Bottinelli, Sandrine, Blake, Geoffrey A., Evans II, Neal J.   +7 more
openaire   +2 more sources

The Global Stratotype Section and Point (GSSP) for the base of the Holocene Series/Epoch (Quaternary System/Period) in the NGRIP ice core [PDF]

, 2008
The Greenland ice core from NorthGRIP (NGRIP) contains a proxy climate record across the Pleistocene– Holocene boundary of unprecedented clarity and resolution.
Rasmussen, Sune Olander, Hoek, Wim Z., Steffensen, Jørgen Peder, Johnsen, Sigfus Johann, Steffensen, J. P., Rasmussen, Sune Ander, Steffensen, Jorgen-Peder, Schwander, Jakob, Andrews, John, Hoek, Wim, Walker, Mike, Gibbard, Philip, Hughen, Konrad, Walker, M., Litt, T., Kershaw, P., Johnsen, Sigfus, Kershaw, Peter, Popp, T., Steffensen, Jørgen-Peder, Hughen, K., Björck, Svante, Johnsen, Sigfu's, Lowe, J., Newnham, R., Kromer, Bernd, Nakagawa, Takeshi, Lowe, D. J., Popp, Trevor James, Lowe, J. John, Schwande, J., Cwynar, L., Newnham, Rewi, Newnham, Rewi M., Rasmussen, S. O., Popp, Trevor, Hoek, W., Cwynar, Les C., Lowe, David J., Nakagawa, T., Litt, Thomas, Lowe, John, Hughen, Konrad A., Kromer, B., Johnsen, S., Gibbard, P., Andrews, J., Cwynar, Les, Bjorck, S., Mike Walker, Trevor Popp, Wim Hoek, John Lowe, Thomas Litt, Rewi Newnham, David J. Lowe, Takeshi Nakagawa, Svante Björck, Peter Kershaw, Konrad Hughen, Sune Olander Rasmussen, John Andrews, Les Cwynar, Philip Gibbard, Jakob Schwander, Sigfus Johnsen, Jørgen-Peder Steffensen, Bernd Kromer   +67 more
core   +2 more sources