Sammanfattning

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.

Publicerad i

PLoS ONE
2016, Volym: 11, nummer: 3, artikelnummer: e0152466
Utgivare: PUBLIC LIBRARY SCIENCE

UKÄ forskningsämne

Multidisciplinär geovetenskap


Publikationens identifierare

DOI: https://doi.org/10.1371/journal.pone.0152466

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/88891