Comparison between Two Extreme NAO Winters and Consequences on the Thermal Regime of Lake Vendyurskoe, Karelia

Maher, Osama Ali; Uvo, Cíntia Bertacchi; Bengtsson, Lars

doi:10.1175/jhm449.1

Cited by 7 publications

(9 citation statements)

References 16 publications

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“…In addition to the research trend concerning the assessment of long-term tendencies of changes in the hydrosphere in the times of global warming, numerous studies refer to the effect of types of macroscale circulation of the atmosphere on its different components. Such research has been conducted in many regions of the world [4][5][6][7][8]. In the case of Central Europe, one of the main macroscale atmospheric circulation patterns determining climatic conditions is the North Atlantic Oscillation (NAO).…”

Section: Introductionmentioning

confidence: 99%

Effect of Teleconnection Patterns on Changes in Water Temperature in Polish Lakes

2018

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Abstract:The objective of the paper was the determination of the effect of teleconnection patterns (North Atlantic Oscillation (NAO), Arctic Oscillation (AO), East Atlantic pattern (EA), East Atlantic/Western Russia (EAWR), and Scandinavian pattern (SCAND)) on changes in air and water temperature in Polish lakes. Correlations of circulation indices with air and lake water temperature were analysed in the monthly cycle. Deviations of values of such components in different phases of the analysed atmospheric circulations types from mean average from the years 1971 to 2015 were also determined. The research showed a variable effect of the atmospheric circulations types. The strongest effect on water temperature was observed in winter, when AO and NAO circulation showed particularly evident influence. Deviations of water temperature from mean values from the analysed multi-annual period generally oscillated around 1.0 • C, reaching a maximum value of 1.4 • C. The presented research shows the complexity of processes determining changes in lake water temperature, the course of which depends on many factors with both regional (e.g., ice cover on lakes) and local range (conditions of water exchange, human pressure).

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Section: Introductionmentioning

confidence: 99%

Effect of Teleconnection Patterns on Changes in Water Temperature in Polish Lakes

2018

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“…Numerous studies show that depending on the NAO phase, pluvial and thermal conditions change, and changes may occur in the course of precipitation and air temperature (Bednorz 2002;Przybylak et al 2003;Kejna et al 2009;Tomczyk 2015;Tošić et al 2016). The effect of NAO is reflected in the functioning of particular elements of the hydrosphere, including lakes (Maher et al 2005;Spears and Jones 2010;Sizova et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of North Atlantic Oscillation on the hydrological conditions of Lake Morskie Oko (Carphatian Mountains)

Wrzesiński

Choiński

Ptak

2016

Bulletin of Geography. Physical Geography Series

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Abstract. The paper presents the effect of North Atlantic Oscillation of macroscale atmospheric circulation (NAO) on the hydrological conditions of Lake Morskie Oko located at an altitude of 1392.8 m a.s.l. in the highest range of the Carpathians. The paper applied detailed hydrometric information from the years 1971-2010 concerning water level fluctuations, water temperature, terms of the commencement and end of ice phenomena and ice cover, as well as meteorological data concerning air temperature and atmospheric precipitation, and monthly and seasonal NAO indices. The performed analysis suggests that the majority of analysed hydrological characteristics of Lake Morskie Oko was not prone to variability of NAO intensity in its various phases. The situation results from the local conditions, particularly responsible for the course of processes and phenomena in Lake Morskie Oko, simultaneously obscuring the effect of macroscale factors.

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“…The effects of the North Atlantic Oscillation Index on the temperature were most pronounced in lower-lying lakes where ice cover is not frequent and persists for a short time. Significant correlations between water temperature and NAO Index have also been reported from other lakes of the northern hemisphere (George et al, 2004b;Maher et al, 2005). Water temperature trends in some lakes of the northern hemisphere were described by Peeters and Livingstone (2002), Livingston (2003), and Arhonditsis and Brett (2004).…”

Section: Introductionmentioning

confidence: 81%

“…Significant correlations between the North Atlantic Oscillation and water temperature for Austrian lakes were reported by Livingstone and Dokulil (2001), Straile et al (2003), and by Maher et al (2005). The effects of seasonal NAO indices on the surface temperature in eight lakes of the northern piedmont region of Austria have been reported in a study conducted by Livingstone and Dokulil (2001).…”

Section: Introductionmentioning

confidence: 87%

“…The NAO Index, as a measure of the intensity of advection of air masses from North Atlantic, is significantly correlated with ice conditions (Koslowski and Glaser, 1999;Maher et al, 2005;George, 2007). Koslowski and Glaser (1999) have demonstrated that heavy ice cover in the western Baltic accompanied the negative NAO phase which was exceptionally frequent during the "little ice age".…”

Section: Introductionmentioning

confidence: 99%

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Effects of the North Atlantic Oscillation on water temperature in southern Baltic coastal lakes

Girjatowicz

2010

Ann. Limnol. - Int. J. Lim.

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-The effects of the North Atlantic Oscillation (NAO) on water temperature (WT) in Lakes Jamno, Gardno, and Łebsko were studied between 1961 and 2000. Both sets of data (NAO and WT) consisted of monthly and seasonal values. Correlation and regression analyses were used and the relationships were tested for statistical significance (Fisher-Snedecor test, coefficients of correlation and determination). Positive and statistically significant (even at a = 0.01) relationships were demonstrated for the winter months (December, January, February and March) and in October. The strongest relationships were demonstrated for winter (December-February) in lakes Jamno and Gardno (correlation coefficients of 0.73 and 0.74). Extreme winters, particularly the very mild ones, tended to diminish the strength of the relationships. Very mild winters were characterised by relatively favourable solar (sunshine) conditions as well as high air and water temperatures, while the NAO Index values were relatively low. Relationships for spring (March-May) and summer (June-August) were not significant. In those seasons, the effects of atmospheric circulation (NAO) on WT were thus low, while the influences of solar factors were strong. Asynchronous relationships bear some predictive value, particularly when the predictive variable is the January NAO Index (NAO Jan ). These relationships were significant at a = 0.01, out to April (NAO Jan vs. WT Apr ). Attention is also drawn to local factors (air temperature, geostrophic wind, solar conditions, and sea water intrusions into lakes) which affected the strength of the relationships investigated.

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Comparison between Two Extreme NAO Winters and Consequences on the Thermal Regime of Lake Vendyurskoe, Karelia

Cited by 7 publications

References 16 publications

Effect of Teleconnection Patterns on Changes in Water Temperature in Polish Lakes

Effect of Teleconnection Patterns on Changes in Water Temperature in Polish Lakes

Effect of North Atlantic Oscillation on the hydrological conditions of Lake Morskie Oko (Carphatian Mountains)

Effects of the North Atlantic Oscillation on water temperature in southern Baltic coastal lakes

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