Results 31 to 40 of about 2,872,579 (294)

Upstream flow effects revealed in the EastGRIP ice core using Monte Carlo inversion of a two-dimensional ice-flow model [PDF]

open access: yesThe Cryosphere, 2021
The Northeast Greenland Ice Stream (NEGIS) is the largest active ice stream on the Greenland Ice Sheet (GrIS) and a crucial contributor to the ice-sheet mass balance.
T. A. Gerber   +8 more
doaj   +1 more source

Ices in Starless and Starforming Cores [PDF]

open access: yesProceedings 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.   +7 more
openaire   +2 more sources

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

open access: yes, 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   +8 more
core   +1 more source

High temporal resolution chemical analysis of H72 ice core in east Dronning Maud Land, Antarctica [PDF]

open access: yes, 2005
P(論文)The H72 ice core collected in east Dronning Maud Land, Antarctica has been analyzed in detail. Concentrations of Na^+ and Cl^- indicate the highest correlation coefficients, so we can say that both ions in the H72 ice core originated from sea salt ...
Anzai, Kaori   +3 more
core   +1 more source

340 years of atmospheric circulation characteristics reconstructed from an eastern Antarctic Peninsula ice core [PDF]

open access: yes, 2006
Copyright @ 2006 American Geophysical Union (AGU)Precipitation delivery mechanisms for Dolleman Island (DI), located off the east coast of the Antarctic Peninsula, are investigated using reanalysis and back trajectory data. The Southern Annular Mode (SAM)
McGregor, GR   +8 more
core   +1 more source

Southern hemisphere atmospheric circulation: Impacts on Antarctic climate and reconstructions from Antarctic ice core data [PDF]

open access: yes, 2010
The official pulished version can be accessed from the DOI below - Copyright @ 2010 Springer VerlagThe atmospheric circulation patterns in the Southern Hemisphere have had a significant impact on the climate of the Antarctic and there is much evidence ...
McGregor, G R   +3 more
core   +1 more source

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

open access: yesFrontiers 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   +5 more
doaj   +1 more source

Ice core hot-flid drilling

open access: yesAntarctic Record, 1994
Fast hole production is possible using ice core hot-fluid drilling. The present paper describes a method for calculation of drill penetration rate dependent on the fluid flux, fluid temperature, physical properties of fluid, size of hot-fluid drill head ...
B.B. Kudryashov, N.G. Menshikov
doaj   +1 more source

Effects of ENSO on the major ion record of a Qomolangma (Mount Everest) ice core

open access: yesAnnals of Glaciology, 2016
Correlations between a 1000 year record of the major ions in a 108.83 m ice core from East Rongbuk Glacier (28°01’N, 86°58’E; 6518ma.s.l.) on the northeast slope of Qomolangma (Mount Everest) and the Southern Oscillation Index (SOI) were examined to ...
Hao Xu   +3 more
doaj   +1 more source

Seasonal evolution of granular and columnar sea ice pore microstructure and pore network connectivity

open access: yesJournal of Glaciology, 2022
Sea-ice pore microstructure constrains ice transport properties, affecting fluid flow relevant to oil-in-ice transport and biogeochemical processes. Motivated by a lack of pore microstructural data, in particular for granular ice and across the seasonal ...
Marc Oggier, Hajo Eicken
doaj   +1 more source

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