Warming of Central European lakes and their response to the 1980s climate regime shift

R. Iestyn Woolway (), Martin T. Dokulil, Wlodzimierz Marszelewski, Martin Schmid, Damien Bouffard and Christopher J. Merchant
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R. Iestyn Woolway: University of Reading
Martin T. Dokulil: University of Innsbruck
Wlodzimierz Marszelewski: Nicolaus Copernicus University
Martin Schmid: Eawag: Swiss Federal Institute of Aquatic Science and Technology
Damien Bouffard: Eawag: Swiss Federal Institute of Aquatic Science and Technology
Christopher J. Merchant: University of Reading

Climatic Change, 2017, vol. 142, issue 3, No 15, 505-520

Abstract: Abstract Lake surface water temperatures (LSWTs) are sensitive to atmospheric warming and have previously been shown to respond to regional changes in the climate. Using a combination of in situ and simulated surface temperatures from 20 Central European lakes, with data spanning between 50 and ∼100 years, we investigate the long-term increase in annually averaged LSWT. We demonstrate that Central European lakes are warming most in spring and experience a seasonal variation in LSWT trends. We calculate significant LSWT warming during the past few decades and illustrate, using a sequential t test analysis of regime shifts, a substantial increase in annually averaged LSWT during the late 1980s, in response to an abrupt shift in the climate. Surface air temperature measurements from 122 meteorological stations situated throughout Central Europe demonstrate similar increases at this time. Climatic modification of LSWT has numerous consequences for water quality and lake ecosystems. Quantifying the response of LSWT increase to large-scale and abrupt climatic shifts is essential to understand how lakes will respond in the future.

Keywords: Regime Shift; Nash Sutcliffe Efficiency; Climate Regime Shift; Lake Surface Water Temperature; Meteorological Force Data (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (5)

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DOI: 10.1007/s10584-017-1966-4

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