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Diel Surface Temperature Range Scales with Lake Size
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2016 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 3, e0152466Article in journal (Refereed) PublishedText
Abstract [en]

Ecological and biogeochemical processes in lakes are strongly dependent upon water temperature. Long-term surface warming of many lakes is unequivocal, but little is known about the comparative magnitude of temperature variation at diel timescales, due to a lack of appropriately resolved data. Here we quantify the pattern and magnitude of diel temperature variability of surface waters using high-frequency data from 100 lakes. We show that the near-surface diel temperature range can be substantial in summer relative to long-term change and, for lakes smaller than 3 km(2), increases sharply and predictably with decreasing lake area. Most small lakes included in this study experience average summer diel ranges in their near-surface temperatures of between 4 and 7 degrees C. Large diel temperature fluctuations in the majority of lakes undoubtedly influence their structure, function and role in biogeochemical cycles, but the full implications remain largely unexplored.

Place, publisher, year, edition, pages
2016. Vol. 11, no 3, e0152466
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Natural Sciences Biological Sciences
URN: urn:nbn:se:uu:diva-294184DOI: 10.1371/journal.pone.0152466ISI: 000373113900060PubMedID: 27023200OAI: diva2:929187
Available from: 2016-05-18 Created: 2016-05-18 Last updated: 2016-10-04Bibliographically approved

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Weyhenmeyer, Gesa A.
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