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 +6 more
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Isotopic variations of meltwater from ice by isotopic exchange between liquid water and ice
Journal of Glaciology, 2019 Predicting the isotopic modification of ice by melting processes is important for improving the accuracy in paleoclimate reconstruction. To this end, we present results from cold room laboratory observations of changes in the isotopic ratio (D/H and 18O ...
Ji-Young Ham +5 more
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Sea-ice melt CO2–carbonate chemistry in the western Arctic Ocean: meltwater contributions to air–sea CO2 gas exchange, mixed-layer properties and rates of net community production under sea ice [PDF]
Biogeosciences, 2014 The carbon dioxide (CO2)-carbonate chemistry of sea-ice melt and co-located, contemporaneous seawater has rarely been studied in sea-ice-covered oceans. Here, we describe the CO2–carbonate chemistry of sea-ice melt (both above sea-ice as "melt ponds" and
N. R. Bates +4 more
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On Simulating the Proton-Irradiation of O$_2$ and H$_2$O Ices Using Astrochemical-type Models, with Implications for Bulk Reactivity [PDF]
, 2019 Many astrochemical models today explicitly consider the species that comprise the bulk of interstellar dust grain ice-mantles separately from those in the top few monolayers. Bombardment of these ices by ionizing radiation - whether in the form of cosmic
Caselli, Paola +3 more
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Halogen activation via interactions with environmental ice and snow in the polar lower troposphere and other regions [PDF]
Atmospheric Chemistry and Physics, 2012 The role of ice in the formation of chemically active halogens in the environment requires a full understanding because of its role in atmospheric chemistry, including controlling the regional atmospheric oxidizing capacity in specific situations.
J. P. D. Abbatt +14 more
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Annals of Glaciology, 2016 Two ice cores drilled to the bottom were recovered from Miaoergou flat-topped glacier (43°03'19“N, 94°19'21“E; 4512 ma.s.l.), eastern Tien Shan, central Asia, in 2005.
Chaomin Wang +7 more
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Modeling the processing of interstellar ices by energetic particles [PDF]
, 2013 Context. Interstellar ice is the main form of metal species in dark molecular clouds. Experiments and observations have shown that the ice is significantly processed after the freeze-out of molecules onto grains.
Kalvāns, Juris, Shmeld, Ivar
core +1 more source
The Astrophysical Journal Supplement Series, 2022 A new, more comprehensive model of gas–grain chemistry in hot molecular cores is presented, in which nondiffusive reaction processes on dust-grain surfaces and in ice mantles are implemented alongside traditional diffusive surface/bulk-ice chemistry.
Robin T. Garrod +5 more
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Annals of Glaciology, 2016 Glacier naledi are extrusive ice masses that appear in front of glaciers as a consequence of refreezing of meltwater seepage during the accumulation season.
Łukasz Stachnik +4 more
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Contribution of liquid, NAT and ice particles to chlorine activation and ozone depletion in Antarctic winter and spring [PDF]
Atmospheric Chemistry and Physics, 2015 Heterogeneous reactions in the Antarctic stratosphere are the cause of chlorine activation and ozone depletion, but the relative roles of different types of polar stratospheric clouds (PSCs) in chlorine activation is an open question.
O. Kirner +3 more
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