Oxygen budget of a perennially ice‐covered Antarctic lake1
A bulk O 2 budget for Lake Hoare, Antarctica, is presented. Five years of seasonal data show the lake to be persistently supersaturated with O 2 . Oxygen is carried into the lake in glacial meltstreams and is left behind when this water is removed as ice by ablation and sublimation. A diffusive loss...
| Published in: | Limnology and Oceanography |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1986
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.4319/lo.1986.31.2.0437 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1986.31.2.0437 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1986.31.2.0437 |
| Summary: | A bulk O 2 budget for Lake Hoare, Antarctica, is presented. Five years of seasonal data show the lake to be persistently supersaturated with O 2 . Oxygen is carried into the lake in glacial meltstreams and is left behind when this water is removed as ice by ablation and sublimation. A diffusive loss of O 2 from the lake through the summer moat is suggested. Measured values of the total O 2 in the water column indicate that the time scale of O 2 turnover is much longer than a year. Based on these results we suggest that the amount of O 2 in the water does not change significantly throughout the year and that the lake is also supersaturated with N 2 . |
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