Results 51 to 60 of about 232,915 (212)

Methanol Formation via Oxygen Insertion Chemistry in Ices [PDF]

The Astrophysical Journal, 2017
Abstract We present experimental constraints on the insertion of oxygen atoms into methane to form methanol in astrophysical ice analogs. In gas-phase and theoretical studies this process has previously been demonstrated to have a very low or nonexistent energy barrier, but the energetics and mechanisms have not yet been characterized in
Jennifer B. Bergner, Karin I. Öberg, Mahesh Rajappan   +2 more
openaire   +4 more sources

Chlorine peroxide reaction explains observed wintertime hydrogen chloride in the Antarctic vortex

Communications Earth & Environment
It is well established that the drastic ozone loss in the Antarctic stratosphere, commonly known as the ozone hole, is primarily driven by gas-phase and heterogeneous chemical processes. While chemistry transport models generally reproduce observed ozone
Jens-Uwe Grooß, Rolf Müller, John N. Crowley, Michaela I. Hegglin   +3 more
doaj   +1 more source

Chemistry of ice core DML05C98_32

, 2006
Chemistry of ice core ...
Felix Fundel (6961820), Fundel, Felix, Hans Oerter (6885401), Oerter, Hans   +3 more
core   +1 more source

A landscape-isotopic approach to the geochemical characterization of lakes in the Kangerlussuaq region, west Greenland

Arctic, Antarctic, and Alpine Research, 2018
In west Greenland, an approximate chronosequence of landscape evolution and weathering exists between the coast, which has been ice free for long periods, and more recently deglaciated areas along the present day ice margin.
Emily Henkemans, Shaun K. Frape, Timo Ruskeeniemi, Nicholas John Anderson, Monique Hobbs   +4 more
doaj   +1 more source

Annotated bibliography of the Russian languages literature on glaciology for 2015

Лëд и снег, 2017
The proposed annual bibliography continues annotated lists of the Russian‑language literature on glaciology that were regularly published in the past. It includes 245 references grouped into the following ten sections: 1)  general issues of glaciology; 2)
V. M. Kotlyakov, L. P. Chernova
doaj   +1 more source

Ice in the environment: connections to atmospheric chemistry

Environmental Research Letters, 2008
Ice in the environment, whether in the form of ice particles in clouds or sea ice and snow at the Earth's surface, has a profound influence on atmospheric composition and climate. The interaction of trace atmospheric gases with snow and sea ice surfaces largely controls atmospheric composition in polar regions.
V Faye McNeill, Meredith G Hastings
openaire   +1 more source

Chemistry, dust and pollen analysis of ice core VAV88

, 2000
Chemistry, dust and pollen analysis of ice core ...
Michel Stiévenard (6977402), Klementyev, Oleg L, Andrei A Andreev (6959288), Andreev, Andrei A, Kotlyakov, Vladimir, Oleg L Klementyev (6977393), V I Nikolayev (6977372), Vostokova, T A, Nikolayev, V I, T A Vostokova (6977390), Stiévenard, Michel, Vladimir Kotlyakov (6970775)   +11 more
core   +1 more source

Characterizing Surface Ice-philicity Using Molecular Simulations and Enhanced Sampling

, 2023
The formation of ice, which plays an important role in diverse contexts, ranging from cryopreservation to atmospheric science, is often mediated by solid surfaces.
Amish, Patel, Sean, Marks, Aniket, Thosar, Zachariah, Vicars   +3 more
core   +1 more source

Response of Antarctic sea-ice algae to an experimental decrease in pH: a preliminary analysis from chlorophyll fluorescence imaging of melting ice

Polar Research, 2018
Microorganisms confined to annual sea ice in the Southern Ocean are exposed to highly variable oxygen and carbonate chemistry dynamics because of the seasonal increase in biomass and limited exchange with the underlying water column.
Katerina Castrisios, Andrew Martin, Marius N. Müller, Fraser Kennedy, Andrew McMinn, Ken G. Ryan   +5 more
doaj   +1 more source

ANNOTATED BIBLIOGRAPHY OF THE RUSSIAN LANGUAGES LITERATURE ON GLACIOLOGY FOR 2016

Лëд и снег, 2018
The proposed annual bibliography continues annotated lists of the Russian‑language literature on glaciology that were regularly published in the past. It includes 345 references grouped into the following ten sections: 1)  general issues of glaciology; 2)
V. M. Kotlyakov, L. P. Chernova
doaj   +1 more source