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Diel Surface Temperature Range Scales with Lake Size

Woolway, RI; Jones, ID; Maberly, SC; French, JR; Livingstone, DM; Monteith, DT; Simpson, GL; ... Weyhenmeyer, GA; + view all (2016) Diel Surface Temperature Range Scales with Lake Size. PLOS One , 11 (3) , Article e0152466. 10.1371/journal.pone.0152466. Green open access

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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.

Type: Article
Title: Diel Surface Temperature Range Scales with Lake Size
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1371/journal.pone.0152466
Publisher version: http://dx.doi.org/10.1371/journal.pone.0152466
Language: English
Additional information: Copyright © 2016 Woolway et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, http://creativecommons.org/licenses/by/4.0/ which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/1477258
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