Oxygen Supersaturation in Ice-Covered Antarctic Lakes: Biological Versus Physical Contributions

Freezing in ice-covered lakes causes dissolved gases to become supersaturated while at the same time removing gases trapped in the ablating ice cover. Analysis of N$_2$, O$_2$, and Ar in bubbles from Lake Hoare ice shows that, while O$_2$ is ∼2.4 times supersaturated in the water below the ice, only...

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Veröffentlicht in:	Science (American Association for the Advancement of Science) 1992-01, Vol.255 (5042), p.318-321
Hauptverfasser:	Craig, H., Wharton, R. A., McKay, C. P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antarctic Regions Antarctica Argon - analysis Atmosphere Atmospherics Biochemistry Bubbles Cold Climate Dissolved oxygen Earth, ocean, space Eukaryota Exact sciences and technology External geophysics Freezing Fresh Water Freshwater Gases Ice Lake ecology Lake ice Lakes Liquids Mars Models, Chemical Nitrogen - analysis Oxygen Oxygen - analysis Photosynthesis Ratios Snow. Ice. Glaciers Solubility Space Biology Space life sciences Trajectories Water Water chemistry
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