Results 21 to 30 of about 2,872,579 (294)

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 novel laser melting sampler for discrete, sub-centimeter depth-resolved analyses of stable water isotopes in ice cores

Journal of Glaciology, 2023
We developed a novel laser melting sampler (LMS) for ice cores to measure the stable water isotope ratios (δ18O and δD) as temperature proxies at sub-centimeter depth resolutions.
Yuko Motizuki, Yoichi Nakai, Kazuya Takahashi, Junya Hirose, Yu Vin Sahoo, Masaki Yumoto, Masayuki Maruyama, Michio Sakashita, Kiwamu Kase, Satoshi Wada, Hideaki Motoyama, Yasushige Yano   +11 more
doaj   +1 more source

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.   +48 more
core   +2 more sources

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 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

Burning-derived vanillic acid in an Arctic ice core from Tunu, northeastern Greenland [PDF]

Climate of the Past, 2018
In this study, vanillic acid was measured in the Tunu ice core from northeastern Greenland in samples covering the past 1700 years. Vanillic acid is an aerosol-borne aromatic methoxy acid, produced by the combustion of lignin during biomass burning ...
M. M. Grieman, M. Aydin, J. R. McConnell, E. S. Saltzman   +3 more
doaj   +1 more source

Basal debris of the NEEM ice core, Greenland: a window into sub-ice-sheet geology, basal ice processes and ice-sheet oscillations

Journal of Glaciology, 2023
We present new data from the debris-rich basal ice layers of the NEEM ice core (NW Greenland). Using mineralogical observations, SEM imagery, geochemical data from silicates (meteoric 10Be, εNd, 87Sr/86Sr) and organic material (C/N, δ13C), we ...
Pierre-Henri Blard, Marie Protin, Jean-Louis Tison, François Fripiat, Dorthe Dahl-Jensen, Jørgen P. Steffensen, William C. Mahaney, Paul R. Bierman, Andrew J. Christ, Lee B. Corbett, Vinciane Debaille, Thomas Rigaudier, Philippe Claeys, ASTER Team   +13 more
doaj   +1 more source

Average time scale for Dome Fuji ice core, East Antarctica [PDF]

, 2004
P(論文)Three different approaches to ice-core age dating are employed to develop a depth-age relationship at Dome F: (1) correlation of the ice-core isotope record to the geophysical metronome(Milankovich surface temperature cycle) inferred from the deep ...
Shoji, Hitoshi, Lipenkov, Vladimir Ya., Salamatin, Andrey N., Hondoh, Takeo, Tsyganova, Elena A., Watanabe, Okitsugu   +5 more
core   +1 more source

Diffusive equilibration of N₂, O₂ and CO₂ mixing ratios in a 1.5-million-years-old ice core [PDF]

The Cryosphere, 2014
In the framework of the International Partnerships in Ice Core Sciences, one of the most important targets is to retrieve an Antarctic ice core that extends over the last 1.5 million years (i.e.
B. Bereiter, H. Fischer, J. Schwander, T. F. Stocker   +3 more
doaj   +1 more source