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Citation

Woolway RI, Jones ID, Maberly SC, French JR, Livingstone DM, Monteith DT, Simpson GL, Thackeray SJ, Andersen MR, Battarbee RW, DeGasperi CL, Evans CD, de Eyto E, Feuchtmayr H & Hamilton DP (2016) Diel Surface Temperature Range Scales with Lake Size. PLOS ONE, 11 (3), Art. No.: e0152466. https://doi.org/10.1371/journal.pone.0152466

Abstract
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 km2, 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°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.

Notes
Additional co-authors: Martin Kernan, Jan Krokowski, Alon Rimmer, Kevin C Rose, James A. Rusak, David B. Ryves, Daniel R. Scott, Ewan M. Shilland, Robyn L. Smyth, Peter A. Staehr, Rhian Thomas, Susan Waldron, Gesa A. Weyhenmeyer

Journal
PLOS ONE: Volume 11, Issue 3

• Published version