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Journal Article
Journal: Geosphere
Published: 04 February 2022
Geosphere (2022) 18 (2): 800–824.
...Peter Molnar Abstract Among quantities of interest in paleoclimate, the mean annual air temperature, T a , directly over the surface looms prominently. Most geologic estimates of past temperatures from continental regions, however, quantify temperatures of the soil or other material below...
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Journal Article
Published: 01 January 2021
Reviews in Mineralogy and Geochemistry (2021) 86 (1): 179–196.
... of presenting a uniform set of standard values for commonly used reference materials. There was a time when stable isotope standards didn’t exist. Consider the classic paper by Dole (1936) , in which he determined the oxygen isotope composition of air relative to water. “ The atomic weight of oxygen in air...
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Journal Article
Published: 01 January 2021
Reviews in Mineralogy and Geochemistry (2021) 86 (1): 197–216.
... productivity to the cross-tropopause transport timescales for air. The small negative MIF signature in bulk tropospheric O 2 with D 17 O ~ −0.2‰, results from the storage of a positive MIF signature in stratospheric CO 2 via transfer from O 3 by the excited state atom O( 1 D) ( Yung et al. 1991...
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Journal Article
Published: 31 July 2018
Canadian Journal of Earth Sciences (2018) 55 (10): 1196–1206.
...Vedran Ivezic; Damir Bekic; Igor Kerin A comparison of various methods that enable temporally continuous computation of basin-wide air temperature is presented. An approach that combines remote sensing data with measurements at meteorological stations for obtaining basin-wide air temperature...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP468.5
EISBN: 9781786203687
... to be resolved in any crustal fluid. We discuss the processes within petroleum systems that incorporate the noble gases from each of these sources into hydrocarbon accumulations. The dominant mechanism controlling the introduction of air-derived noble gases into petroleum systems is via subsurface groundwater...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP466.24
EISBN: 9781786203786
... Abstract Three major problems in cave micrometeorology are analysed: the concept of the temperature of a cave and its phenomenology; the internal energy flows and consequent local entropy production; and a non-hydrostatic physical model of the underground convective air circulation. A cave’s...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.9
EISBN: 9781786203328
...) and bathroom (WC-g) on the ground floor, and the bedroom on the first floor (BR-1/1), are kept at a temperature above 20°C, while the other rooms are kept at 10–15°C. There is no air conditioning, and rooms are aerated by simply opening windows and doors. In warm weather, windows in the kitchen and living...
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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/SP451.7
EISBN: 9781786203328
... tradition of using radon groundwaters, and later also the air in caves and underground workings, the author would also like to focus on soil air, which is still underestimated as a source of radon. The text presents different methods of obtaining this radioactive gas from groundwaters, the air in caves...
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Journal Article
Published: 27 April 2017
Petroleum Geoscience (2017) 23 (3): 306–314.
...Bo Wang; Sebastian Bauer Abstract Compressed air energy storage (CAES) in porous formations is considered as one option for large-scale energy storage to compensate for fluctuations from renewable energy production. To analyse the feasibility of such a CAES application and the deliverability...
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Journal Article
Published: 01 April 2017
Vadose Zone Journal (2017) 16 (4): 1–16.
... functions (soil water content, matric potential, temperature, soil air O 2 and CO 2 concentrations, O 2 diffusion rates, and redox states) as well as periodic sampling and in situ measurements of infiltration, mechanical impedance, soil porosity, gas and water transport properties, crop yields, earthworm...
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Journal Article
Published: 01 February 2017
Vadose Zone Journal (2017) 16 (2): 1–17.
... was fit to the available air temperature data ( Fig. 3a ); the resulting air temperature was then used to estimate the vertical soil temperature profiles for each survey period using Eq. [2] ( Fig. 3b ). The consequent changes in resistivity due to temperature between the first survey period...
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Journal Article
Published: 01 September 2016
Vadose Zone Journal (2016) 15 (9): vzj2016.04.0034.
...Guy Mizrahi; Alex Furman; Noam Weisbrod Abstract Entrapped air effects on infiltration under ponding condition are important in many engineered systems such as soil aquifer treatment and managed aquifer recharge. Earlier studies found that under ponding conditions, air is compressed until...
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Journal Article
Published: 01 August 2016
Vadose Zone Journal (2016) 15 (8): vzj2015.12.0165.
... test is underway in which a section of a deep underground tunnel is filled with groundwater and the existing desaturated zone with trapped air is subjected to high water pressure. Water saturation in the unsaturated zone as a function of capillary pressure is well understood. However, the process...
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Journal Article
Published: 01 April 2016
Vadose Zone Journal (2016) 15 (4): vzj2015.07.0104.
...Marcos Paradelo; Sheela Katuwal; Per Moldrup; Trine Norgaard; Lasantha Herath; Lis W. de Jonge Abstract The characterization of soil pore space geometry is important for explaining fluxes of air, water, and solutes through soil and understanding soil hydrogeochemical functions. X-ray computed...
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Journal Article
Published: 01 April 2016
Vadose Zone Journal (2016) 15 (4): vzj2015.09.0132.
... in the original study have disappeared with the new calculation. Therefore a direct connection between creep velocity and air and soil temperature cannot be proposed anymore. Nevertheless, we assume that the creep velocity of this rock glacier is primarily not temperature controlled but strongly dependent...
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Journal Article
Published: 01 March 2016
Vadose Zone Journal (2016) 15 (3): vzj2015.05.0081.
...Toru Nakajima; Hirotaka Saito; Seishu Tojo; Qinhong Hu Abstract Soil air permeability is an important parameter to characterize convective gas transport through the soil gas phases. However, current air permeability measurements have limitations, specifically in Andisols, which are highly...
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Journal Article
Journal: Elements
Published: 01 August 2015
Elements (2015) 11 (4): 253–258.
... atmospheric weapon tests in 1952 and 1953 extended eastwards as far as north-western Europe ( Warneke et al. 2002 ). As such, this baseline can be used to validate or dismiss claims of local radioactive fallout, such as the alleged nuclear pollution of a wide area around the Royal Air Force Station Greenham...
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Journal Article
Published: 01 May 2015
Vadose Zone Journal (2015) 14 (5): vzj2014.06.0063.
... and gas. In the capillary fringe, gas bubbles may emerge above and below the level of the water table (water pressure corresponds to atmospheric pressure) due to its temporal fluctuation but also due to biochemical activities. Such a trapped air phase has been shown to affect the effective conductivity...
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Journal Article
Published: 01 October 2014
Vadose Zone Journal (2014) 13 (10): vzj2014.03.0032.
... fatalities. A numerical model was developed to understand the mechanism controlling gas flow, which was found to be the relative buoyancy of the gas phase within the dump compared with atmospheric air. Changes in atmospheric air density are caused by atmospheric temperature variations, whereas dump gas-phase...
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Journal Article
Published: 01 August 2014
Vadose Zone Journal (2014) 13 (8): vzj2014.01.0008.
... freezing and thawing. An air circulation system, in a cavity surrounding the active layer, allows manipulation of the lateral temperature boundary by actively maintaining an air temperature matching the average temperature of the soil column. Replicating realistic thermal boundary conditions enabled field...
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