Continuous measurements of methane mixing ratios from ice cores [PDF]
Atmospheric Measurement Techniques, 2012 This work presents a new, field-deployable technique for continuous, high-resolution measurements of methane mixing ratios from ice cores. The technique is based on a continuous flow analysis system, where ice core samples cut along the long axis of an ...
C. Stowasser +10 more
doaj +6 more sources
Proceedings of the National Academy of Sciences, 1997 Air trapped in glacial ice offers a means of reconstructing variations in the concentrations of atmospheric gases over time scales ranging from anthropogenic (last 200 yr) to glacial/interglacial (hundreds of thousands of years). In this paper, we review the glaciological processes by which air is trapped in the ice and discuss
M, Bender, T, Sowers, E, Brook
openaire +2 more sources
Journal of Marine Science and Engineering, 2021 Small-scale variation in the physical and biological properties of sea ice was examined by collecting nine sea ice cores within 1 m2 in a land-fast first-year ice in southwest Greenland in late winter.
Lars Chresten Lund-Hansen +3 more
doaj +1 more source
On the occurrence of annual layers in Dome Fuji ice core early Holocene ice [PDF]
Climate of the Past, 2015 Whereas ice cores from high-accumulation sites in coastal Antarctica clearly demonstrate annual layering, it is debated whether a seasonal signal is also preserved in ice cores from lower-accumulation sites further inland and particularly on the East ...
A. Svensson +15 more
doaj +1 more source
Analyses of Two Ice Cores Drilled at the Ice-Sheet Margin in West Greenland [PDF]
, 1988 In 1978 two ice cores were drilled to depths of 46 and 92 m respectively at Camp 3, at the west margin of the Greenland ice sheet. Both core drillings reached bedrock.
Clausen, H.B. +3 more
core +2 more sources
IceChrono1: a probabilistic model to compute a common and optimal chronology for several ice cores [PDF]
Geoscientific Model Development, 2015 Polar ice cores provide exceptional archives of past environmental conditions. The dating of ice cores and the estimation of the age-scale uncertainty are essential to interpret the climate and environmental records that they contain.
F. Parrenin +5 more
doaj +1 more source
Post-coring entrapment of modern air in some shallow ice cores collected near the firn-ice transition: evidence from CFC-12 measurements in Antarctic firn air and ice cores [PDF]
Atmospheric Chemistry and Physics, 2010 In this study, we report measurements of CFC-12 (CCl<sub>2</sub>F<sub>2</sub>) in firn air and in air extracted from shallow ice cores from three Antarctic sites. The firn air data are consistent with the known atmospheric history
M. Aydin +11 more
doaj +1 more source
Theoretical and Experimental Analysis for Cleaning Ice Cores from EstisolTM 140 Drill Liquid
Applied Sciences, 2021 To reconstruct climate history of the past 1.5 Million years, the project: Beyond EPICA Oldest Ice (BEOI) will drill about 2700 m of ice core in East Antarctica (2021–2025). As drilling fluid, an aliphatic ester fluid, EstisolTM 140, will be used.
Francesco Enrichi +3 more
doaj +1 more source
A multi-ice-core, annual-layer-counted Greenland ice-core chronology for the last 3800 years: GICC21 [PDF]
Climate of the Past, 2022 Ice-core timescales are vital for the understanding of past climate; hence they should be updated whenever significant amounts of new data become available.
G. Sinnl +9 more
doaj +1 more source
Apparent discrepancy of Tibetan ice core δ18O records may be attributed to misinterpretation of chronology [PDF]
The Cryosphere, 2019 Ice cores from the Tibetan Plateau (TP) are widely used for reconstructing past climatic and environmental conditions that extend beyond the instrumental period.
S. Hou +8 more
doaj +1 more source