Effect of the North Atlantic Oscillation on the Thermal Characteristics of Lakes in Poland

Wrzesiński, Dariusz; Choiński, Adam; Ptak, Mariusz

doi:10.1515/acgeo-2015-0001

Cited by 28 publications

(24 citation statements)

References 22 publications

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“…This increase at the Poznań station is consistent with the course of air temperature in other regions of Poland, and it is directly reflected in the elevation of lake water temperatures [40]. Such a situation affects changes in the components of the water balance of the lakes.…”

Section: Discussionsupporting

confidence: 77%

Changes in Water Resources of Polish Lakes as Influenced by Natural and Anthropogenic Factors

Choiński¹,

Ptak²,

Ławniczak³

2016

Pol. J. Environ. Stud.

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Section: Discussionsupporting

confidence: 77%

Changes in Water Resources of Polish Lakes as Influenced by Natural and Anthropogenic Factors

Choiński¹,

Ptak²,

Ławniczak³

2016

Pol. J. Environ. Stud.

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“…The analysis of approximately a dozen lakes in Poland in the years 1961-2010 showed that warming of the surface water layers in lakes is particularly evident in spring (April, May) and summer months (July, August), where e.g. in the case of Lake Lubie, in May an increase by 1.02°C per decade was recorded [14]. A similar situation was observed in the case of lakes analysed in Estonia [15].…”

Section: Resultssupporting

confidence: 53%

Variability of Oxygen-Thermal Conditions in Selected Lakes in Poland

Ptak

Nowak

2016

Ecological Chemistry and Engineering S

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Dissolved oxygen in water (DO) is one of the primary parameters determining its quality. It remains in close relation to water temperature. The article presents results of DO and water temperature measurements performed for five stratified lakes in Poland in the years 2007-2014. The measurements were performed with monthly frequency in the summer half-year (May-October) in the deepest place of each of the lakes. The compared data show the complex character of the course of both of the parameters. The analysis of depth profiles revealed the prevalence of a decreasing tendency, or no tendency was recorded -both in the case of DO and water temperature. Due to the incoherent character of the water in the case of stratified lakes, a more detailed comparison was performed, referring to changes occurring in zones developed during summer stratification. It was determined that the temperature of the epilimnion was directly dependent on air temperature, and in all cases it showed an increasing tendency. Simultaneously, along with an increase in temperature, in the majority of cases, DO concentration in the zone decreased. In reference to the waters of the hypolimnion, increasing, decreasing, and no tendencies were recorded. The above distribution is determined by individual factors of the lakesmorphometry, trophic status, groundwater alimentation, etc. Several years of measurements of DO and water temperature in depth profiles of several lakes in Poland constitute valuable information on the current transformations of the environment of this part of Europe. In the future, the information can provide the basis for long-term analyses over the next decades, enriching global knowledge on those parameters of key importance for water ecosystems.

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“…In the monthly cycle, the highest temperature increase was determined for July (0.73°C·dec -1 ) and April (0.73°C·dec -1 ). Due to strong correlations of temperature of air and water [22], an increase in the former will contribute to an increase in the latter. As a consequence, heat resources accumulated in lakes increase [23].…”

Section: Resultsmentioning

confidence: 99%

Variability and course of occurrence of ice cover on selected lakes of the Gnieźnieńskie Lakeland (Central Poland) in the period 1976–2015

Nowak

Ptak

2018

E3S Web Conf.

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Abstract. The paper presents the analysis of the course of ice phenomena on four lakes (Lednica, Żnińskie Duże, Biskupińskie, Powidzkie) in central Poland in the period 1976-2015. The obtained results show changes in their ice regime that occurred over the last 40 years. An advance of the term of decline of ice cover was determined (by 2.5 day·dec -1 on average for all lakes), as well as a reduction of duration of ice cover (by 4.4 day·dec -1 on average for all lakes), and a decrease in its maximum thickness (by 2 cm·dec -1 on average for all lakes). Such a situation should be associated with the observed warming, as confirmed by the course of air temperature for station Gniezno, where in the period of the winter half-year (November-April), an increase in temperature was recorded by 0.37°C·dec -1 .

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Effect of the North Atlantic Oscillation on the Thermal Characteristics of Lakes in Poland

Cited by 28 publications

References 22 publications

Changes in Water Resources of Polish Lakes as Influenced by Natural and Anthropogenic Factors

Changes in Water Resources of Polish Lakes as Influenced by Natural and Anthropogenic Factors

Variability of Oxygen-Thermal Conditions in Selected Lakes in Poland

Variability and course of occurrence of ice cover on selected lakes of the Gnieźnieńskie Lakeland (Central Poland) in the period 1976–2015

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