Seasonal stability of snow cover in Poland in relation to the atmospheric circulation

Falarz, Małgorzata

doi:10.1007/s00704-012-0642-x

Cited by 16 publications

(18 citation statements)

References 22 publications

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“…However, in the latter half of the twentieth century, a slight negative trend occurred across most of the Poland, excluding the highest parts of the Sudety Mountains (Falarz 2010). In southern Poland, the foehn effect has a strong influence on snow cover (Falarz 2013). Northern Germany has very variable snow cover with the mean number of days with snow cover varying from less than 15 in the west to almost 40 in the east.…”

Section: Snow Cover Formation Duration and Meltmentioning

confidence: 99%

Recent Change—Terrestrial Cryosphere

Rasmus

Boelhouwers

Briede

et al. 2015

Regional Climate Studies

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This chapter compiles and assesses information on recent and current change within the terrestrial cryosphere of the Baltic Sea drainage basin. Findings are based on long-term observations. Snow cover extent (SCE), duration and amount have shown a widespread decrease although there is large interannual and regional variation. Few data are available on changes in snow structural properties. There is no evidence for a recent change in the frequency or severity of snow-related extreme events. There has been a decrease in glacier coverage in Sweden and glacier ice thickness in inland Scandinavia. The European permafrost is warming, and there has been a northward retreat of the southern boundary of near-surface permafrost in European Russia.Keywords seasonal snow cover Á glaciers Á seasonally frozen ground Á permafrost 6

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Section: Snow Cover Formation Duration and Meltmentioning

confidence: 99%

Recent Change—Terrestrial Cryosphere

Rasmus

Boelhouwers

Briede

et al. 2015

Regional Climate Studies

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“…No such trend can, however, be found at the scale of the twentieth century (period 1915-1999). At Kasprowy Wierch, where available records span the period 1954-1998, the highest stable condition of winter snow cover occurred in 1954-1960, 1970-1980and 1990(Falarz 2013.…”

Section: The Basics Of the Tatra Mountains Climatementioning

confidence: 99%

Variability of high rainfalls and related synoptic situations causing heavy floods at the northern foothills of the Tatra Mountains

Niedźwiedź

Łupikasza

Pińskwar

et al. 2014

Theor Appl Climatol

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This contribution provides the basics of the climatology of the Polish Tatra Mountains in a nutshell, with particular reference to intense precipitation and its relation to atmospheric circulation. Variability of various precipitation characteristics, including selected indices of intense precipitation in Zakopane and at Kasprowy Wierch, is illustrated in this paper. None of the trends in these characteristics and indices calculated for the entire time interval exhibit a statistical significance, but short-time fluctuations are evident. The occurrence of intense precipitation in the Tatra Mountains is strongly related to three circulation types. These situations (Nc, NEc, Bc) are associated with cyclones following track Vb after van Bebber. In addition to changing frequencies of circulation, this study also reveals an increase in the frequency of the circulation types associated with extreme precipitation.

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“…Climate change research carried out in recent decades led in many cases to the conclusion that the cause of these changes are changes and variability in the macro-and mesoscale atmospheric circulation (e.g. Konrad 1998;Clark et al 1999;Marsz 1999;Slonosky et al 2001;Falarz 2007Falarz , 2013Rasmus et al 2015). Hence, at the same time, there was a surge of interest in cyclic and non-cyclic changes in circulation (e.g.…”

Section: Introductionmentioning

confidence: 99%

Azores High and Hawaiian High: correlations, trends and shifts (1948–2018)

Falarz

2019

Theor Appl Climatol

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The paper focuses on investigation of 'twin' subtropical oceanic highs of the Northern Hemisphere, i.e. the Azores High (AH) and the Hawaiian High (HH) in January and July based on gridded 2.5°× 2.5°data of Reanalysis Project of the National Center for Atmospheric Research for the period 1948-2018. The aim is to answer three questions: (1) Are there any connections between AH and HH (both within and between the systems)? (2) What is the long-term variability and trends of the basic characteristics of AH and HH? (3) Do the AH and HH move, and if so, in what directions? The most important results are as follows: (1) the longterm trend of sea level air pressure in the AH centre in January is positive, statistically significant with the increase of 0.63 hPa/ 10 years, (2) pressure in both centres significantly relates with the latitude of each system; variables characterising the HH in January explain 11% of variation of the variables of the AH in July, (3) the NE-SW/SW-NE index proves the shifting of the AH in January from the southwest to the northeast from the 1990s of the twentieth century and again to the southwest in the twentyfirst century, (4) the HH in January and July moved generally from the northeast to the southwest until the end of the twentieth century and shifted again to northeast during the twenty-first century, (5) the AH in July was characterised by complicated displacement system with the prevalence of the shifting from the northeast to the southwest with the exception for the period 1980-1990. In winter, the AH moves towards the land area of Europe in the second half of the twentieth century, while the HH moves towards the open Pacific. The statistically significant increase of pressure in the centre of the AH in January is closely related to the shifting of the system to the northeast. The positive pressure trend in the centre of the AH in January combined with the zero trend in July is the cause of diminishing difference between summer and winter air pressure value of the high. Due to increased sea surface temperature of the Atlantic, the AH does not lose its strength in winter as it used to a few decades ago.

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Seasonal stability of snow cover in Poland in relation to the atmospheric circulation

Cited by 16 publications

References 22 publications

Recent Change—Terrestrial Cryosphere

Recent Change—Terrestrial Cryosphere

Variability of high rainfalls and related synoptic situations causing heavy floods at the northern foothills of the Tatra Mountains

Azores High and Hawaiian High: correlations, trends and shifts (1948–2018)

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