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Diel Surface Temperature Range Scales with Lake Size.pdf (837.56 kB)

Diel surface temperature range scales with lake size

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posted on 2016-06-14, 09:00 authored by R. Iestyn Woolway, Ian D. Jones, Stephen C. Maberly, Jon R. French, David M. Livingstone, Donald T. Monteith, Gavin L. Simpson, Stephen J. Thackeray, Mikkel R. Andersen, Richard W. Battarbee, Curtis L. DeGasperi, Christopher D. Evans, Elvira de Eyto, Heldrun Feuchtmayr, David P. Hamilton, Martin Kernan, Jan Krokowski, Alon Rimmer, Kevin C. Rose, James A. Rusak, David RyvesDavid Ryves, Daniel R. Scott, Ewan M. Shilland, Robyn L. Smyth, Peter A. Staehr, Rhian Thomas, Susan Waldron, Gesa A. Weyhenmeyer
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.

Funding

This project was funded by OTT Hydrometry Ltd and a University College London impact award awarded to RIW and is part of the Natural Environment Research Council (NERC) Sensor Network project United Kingdom Lake Ecological Observatory Network (UKLEON;NE/I007407/1). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

History

Department

  • Geography and Environment

Published in

PLOS ONE

Volume

11

Issue

3

Citation

WOOLWAY, R. ... et al., 2016. Diel surface temperature range scales with lake size. PLoS One, DOI: 10.1371/journal.pone.0152466.

Publisher

PLoS (© the authors)

Version

  • VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Acceptance date

2016-03-15

Publication date

2016-03-29

Copyright date

2016

ISSN

1932-6203

Language

  • en

Article number

e0152466

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