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Water (Switzerland), 2020 The deuterium excess (d) in precipitation, determined by the stable hydrogen and oxygen isotopes (δ2H and δ18O), is a widely applied parameter in tracing the water vapor source. Based on the multiple-year observations of stable water isotopes
Athanassios A. Argiriou +2 more
exaly +2 more sources
Journal of Geophysical Research D: Atmospheres, 2014 We provide the first continuous measurements of isotopic composition (D and O-18) of water vapor over the subtropical Eastern North Atlantic Ocean from mid-August to mid-September 2012.
Marion Benetti +2 more
exaly +2 more sources
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Deuterium excess in recent Antarctic snow
Journal of Geophysical Research: Atmospheres, 1991Deuterium excess (d = δD ‐ 8 * δ18O) values in surface snow are presented for central and east Antarctica. The samples are primarily from Soviet, French, and Australian traverses. The d values exhibit a large change going from coastal sites to high‐altitude sites on the ice sheet.
J. R. Petit +4 more
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Excess energy of mixing of hydrogen-deuterium solutions
Soviet Journal of Low Temperature Physics, 1975The complete constitution diagram of vapor-liquid-crystal solutions of hydrogen and deuterium is investigated experimentally in the temperature region from 14°K to 20°K. On the basis of the data obtained, the excess energy of mixing is calculated in the solid phase along the melting diagram.
L. V. Karnatsevich +2 more
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The Impact of Nonequilibrium and Equilibrium Fractionation on Two Different Deuterium Excess Definitions [PDF]
Journal of Geophysical Research D: Atmospheres, 2017 AbstractThe deuterium excess (d) is a useful measure for nonequilibrium effects of isotopic fractionation and can therefore provide information about the meteorological conditions in evaporation regions or during ice cloud formation. In addition to nonequilibrium fractionation, two other effects can change d during phase transitions.
Marina Dutsch +2 more
exaly +2 more sources
Journal of Thermal Analysis and Calorimetry, 2001
Excess enthalpies of six binary mixtures of CH3 OD+CH3 OH, CH3 OD+CD3 OD, CD3 OD+CH3 OH, C2 D5 OD+C2 H5 OH, C2 D5 OD+C2 H5 OD, C2 H5 OD+C2 H5 OH have been determined over the whole range of mole fractions at 298.15 K in order to know the isotopic effect on hydrogen-bonding accurately, although there are many reports on the differences in the strength ...
T. Kimura +4 more
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Excess enthalpies of six binary mixtures of CH3 OD+CH3 OH, CH3 OD+CD3 OD, CD3 OD+CH3 OH, C2 D5 OD+C2 H5 OH, C2 D5 OD+C2 H5 OD, C2 H5 OD+C2 H5 OH have been determined over the whole range of mole fractions at 298.15 K in order to know the isotopic effect on hydrogen-bonding accurately, although there are many reports on the differences in the strength ...
T. Kimura +4 more
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Possible excess tritium production on Pd codeposited with deuterium
Journal of Electroanalytical Chemistry, 1993Abstract Tritium production was measured in the liquid and gas phases on Pd codeposited with deuterium from PdCl2 + LiCl + D2O solutions. During two weeks of electrolysis, in four out of six cells, average excess tritium levels of 1.9 times in the gas phase and 1.6 times in the liquid phase were found over those expected from the separation factor ...
Dalibor Hodko, J.O'M. Bockris
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Using deuterium excess to determine water salinization mechanism
2011 International Symposium on Water Resource and Environmental Protection, 2011Since deuterium excess would decrease during evaporation and has little effects by isotopic composition of initial water, rather than the relationship between δ18O (or δ2H) and salinity, it is a potential tool for determining contribution of evapoconcentration and dissolution of mineral for a given water body.
null Jilai Liu, null Tianming Huang
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Characteristics of deuterium excess parameters for geothermal water in Beijing
Environmental Earth Sciences, 2016This study investigates the characteristics of geothermal water in 10 geothermal fields in Beijing. The relationships between the deuterium excess parameter (d) and temperature, depth, age of geothermal groundwater, groundwater flow field, and Eh were investigated using geothermal groundwater samples.
Kai Liu +5 more
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Modeling Insights Into Deuterium Excess as an Indicator of Water Vapor Source Conditions [PDF]
Journal of Geophysical Research D: Atmospheres, 2013 Deuterium excess (d) is interpreted in conventional paleoclimate reconstructions as a tracer of oceanic source region conditions, such as temperature, where precipitation originates.
Sophie Lewis +2 more
exaly +1 more source