Response of boreal lakes to episodic weather-induced events

Kuha, Jonna; Арвола, Лаури; Hanson, Paul C.; Huotari, Jussi; Huttula, Timo; Juntunen, Janne; Järvinen, Marko; Kallio, Kari; Ketola, Mirva; Kuoppamäki, Kirsi; Lepistö, Ahti; Lohila, Annalea; Paavola, Riku; Vuorenmaa, Jussi; Winslow, Luke; Karjalainen, Juha

doi:10.1080/iw-6.4.886

Cited by 26 publications

(40 citation statements)

References 3 publications

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“…van de Pol et al, 2017). In other words, because not all extreme weathers necessarily lead to clear impacts, reported storm events are usually selected under an ad hoc definition based on the effects they have on lakes, rather than only for their meteorological characteristics (for instance, see Jennings et al, 2012, Kuha et al, 2016, Vachon & del Giorgio, 2014.…”

mentioning

confidence: 99%

Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity

Perga

Bruel

Rodríguez

et al. 2018

Global Change Biology

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Extreme weather events may be just as important as gradual trends for the long-term trajectories of ecosystems. For alpine lakes, which are exposed to both exacerbated atmospheric warming and intense episodic weather events, future conditions might not be appropriately forecast by only climate change trends, i.e. warming, if extreme events have the potential to deflect their thermal and metabolic states from their seasonal ranges. We used high-frequency monitoring data over three open-water seasons with a one-dimensional hydrodynamic model of the high-altitude Lake Muzelle (France) to show that rainstorms or windstorms, notwithstanding their intensity, did not trigger long-lasting consequences to the lake characteristics when light penetration into the lake was not modified. In contrast, storms associated with high turbidity input from the watershed ("turbid storms") strongly modified the lacustrine hydrodynamics and metabolism for the rest of the open-water season through reduced light penetration. The long-lasting effects of turbid storms were related to the inputs and in-lake persistence of very light glacial suspensoids from the watershed. The occurrence of the observed turbid storms was not related to the wind or rain intensities during the events. Instead, the turbid storms occurred after dry and atypically warm spells, i.e. meteorological conditions expected to be more frequent in this alpine region in the upcoming decades. Consequently, storm events, notwithstanding their intensity, are expected to strongly imprint the future ecological status of alpine lakes under climate warming.

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confidence: 99%

Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity

Perga

Bruel

Rodríguez

et al. 2018

Global Change Biology

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“…The specific focus was set on the Lindholm-Lehto et al ( 2015 ) sampling sites 1 and 4, since most data were available from these measurements downstream a WWTP: concentrations at the depths of 1 and 5 m (site 1), and 1, 10, and 20 m (site 4). The stratified lake environment was set up based on meteorological data from Finnish Meteorological Institute, water temperatures from Kuha et al ( 2016 ) and the Finnish environmental information system Hertta, and other lake data from Palomäki et al ( 2014 ). Rough comparisons of environmental concentrations with temperature, total water flow, and wind data during the samplings showed that wind speed had clearly the strongest effect on the levels, with the rest possibly being completely overshadowed by the effluent variations.…”

Section: Methodsmentioning

confidence: 99%

A fugacity model assessment of ibuprofen, diclofenac, carbamazepine, and their transformation product concentrations in an aquatic environment

Nurmi

Kiljunen

Knuutinen

2018

Environ Sci Pollut Res

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An updated version of FATEMOD, a multimedia fugacity model for environmental fate of organic chemicals, was set up to assess environmental behaviour of three pharmaceuticals in northern Lake Päijänne, Finland. Concentrations of ibuprofen, diclofenac, and carbamazepine were estimated at various depths at two sites: near a wastewater treatment plant and 3.5 km downstream the plant. When compared with environmental sampling data from corresponding depths and sites, the predicted concentrations, ranging from nanograms to hundreds of nanograms per litre, were found to be in good agreement. Weather data were utilised with the model to rationalise the effects of various environmental parameters on the sampling results, and, e.g. the roles of various properties of lake dynamics and photodegradation were identified. The new model also enables simultaneous assessment of transformation products. Environmentally formed transformation product concentrations were estimated to be at highest an order of magnitude lower than those of the parent compounds, and unlikely to reach a detectable level. However, a possibility that conjugates of ibuprofen are present at higher levels than the parent compound was identified. Simulation results suggest that environmental degradation half-lives of the inspected contaminants under stratified lake conditions are in the range of some weeks to months.

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“…Температура и скорости течений определяют интенсивность биохимических процессов в водной толще и придонных слоях водоемов. В частности, температура водной толщи и режим перемешивания оказывают определяющее влияние на развитие придонной аноксии [1], на перераспределение клеток водорослей, биогенов, газов по водной толще [2]. Интенсивность динамических процессов может оказывать заметное влияние на жизненные циклы гидробионтов, создавая «благоприятные» условия для видов с разными предпочтениями по динамическому режиму [3].…”

Section: Abstract: Boreal Lake Ice-covered Period 3d-model Currentunclassified

Modeling of Currents in an Ice-Covered Lake

Zverev¹,

Здоровеннова²,

Bogdanov³

et al. 2018

УСЕ (ACNR)

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Response of boreal lakes to episodic weather-induced events

Cited by 26 publications

References 3 publications

Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity

Storm impacts on alpine lakes: Antecedent weather conditions matter more than the event intensity

A fugacity model assessment of ibuprofen, diclofenac, carbamazepine, and their transformation product concentrations in an aquatic environment

Modeling of Currents in an Ice-Covered Lake

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