Results 11 to 20 of about 2,979,995 (245)
Ice nucleation under cirrus cloud conditions [PDF]
, 2012 Cirrus are thin upper tropospheric clouds that are composed entirely of ice particles. Due to their extensive coverage of the Earth’s surface, they have a significant impact on the Earth’s radiative balance.
Wilson, Theodore W
core +6 more sources
Reconfigurable microfluidic platform in ice [PDF]
, 2008 Microfluidic devices are popular tools in the biotechnology industry where they provide smaller reagent requirements, high speed of analysis and the possibility for automation.
Varejka, M.
core +7 more sources
In search of an ice core signal to differentiate between source-driven and sink-driven changes in atmospheric methane [PDF]
, 2011 The concentration of atmospheric methane increased from around 360 ppbv at the last glacial maximum (similar to 20 ka before present) to about 700 ppbv in the pre-industrial era (similar to 200 years before present).
Levine, J. G. +6 more
core +6 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Chemistry Teacher International, 2023 In this paper, the cooling effect of alternative ice cubes made of granite, soapstone and ceramic is experimentally examined with the help of a digital temperature sensor and compared with that of a conventional ice cube.
Fleischer Timo +3 more
doaj +1 more source