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Title: RECENT CHANGES IN THE SNOW COVER DURATION IN BULGARIA – PRELIMINARY RESULTS
RECENT CHANGES IN THE SNOW COVER DURATION IN BULGARIA – PRELIMINARY RESULTS

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Dimitar Nikolov; Cvetan Dimitrov; Radoslav Evgeniev
10.5593/sgem2024/4.1/s19.57
10.5593/sgem2024/4.1
1314-2704
978-619-7603-71-2
English
24
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
19.Air Pollution and Climate Change
Snow cover is an indicator of the fluctuating climate, resulting from the change in the regime of winter precipitations and air temperatures. Our previous studies have revealed significant decreasing of the seasonal snow cover maxima and the precipitation amounts in the highest mountainous regions of Bulgaria, which is however not so strong at lower altitudes. Current research summarizes our last findings about one other characteristic of the snow cover – its duration. This is presented as annual number of days with snow cover with different heights. We have used 62 weather stations with altitudes ranging from 20 up to 2376 m a.s.l. Statistical analysis is performed in order to assess the variability and possible differences in the investigated characteristic from long-term data series for two main climatological periods 1961-90 and 1991-2020.
The general tendency for the whole country is a decreasing trend, more pronounced at the northwest and north parts of Bulgaria with some opposite exceptions with much smaller magnitude at some isolated places at northeast and south. Remarkable decreasing of the snow cover days in comparison with the period 1961-1990 has been encountered in the mountainous regions – in the regions of Koprivshtitza (Stara planina) and Cherni vrah (Vitosha Mountain) the decline is almost one month. We have investigated the mean annual number of snow cover days in three different height categories – all days with snow cover, and those above the limits 15 and 30 cm. Some of the results are presented graphically as maps of the current stage together with the deviation from the previous climatic periods.
This investigation is part of a project for investigation of the current variability of the snow cover and was funded by the Bulgarian National Science Fund in the call for young and post-doctoral researchers under contract number DM14/1.
[1] Barry RG. 1992. Mountain Weather & Climate, 2nd edn. Routledge, Chapman and Hall: London. pp 402;
[2] Bednzorz. 2004. Snow cover in Eastern Europe in relation to temperature, precipitation and circulation, International Journal of Climatology, 24, pp. 591-601.
[3] Beniston M. 2006. Mountain weather and climate: A general overview and a focus on climatic change in the Alps. Hydrobiologia 562: 3–16;
[4] Beniston M., 1997. Variations of snow depth and duration In the Swiss Alps over the last 50 years:links to changes In large-scale slimatic forcings, Climate Change, 36, 281-300.
[5] Beniston M. Uhlmann B, Goyette S, Lopez-Moreno JI. 2011. Will snow-abundant winters still exist in the Swiss Alps in an enhanced greenhouse climate? International Journal of Climatology, 31:1257-1263;
[6] Beniston M, Farinotti D, Stoffel M, Andreassen LM, Coppola E, Eckert N, Fantini A, Giacona F, Hauck C, Huss M, Huwald H. 2018. The European mountain cryosphere: a review of its current state, trends, and future challenges. Cryosphere 12:759-794;
[7] Beniston M. Is snow in the Alps receding or disappearing? In: Wiley interdisciplinary reviews. Climate change, 2012, vol. 3, n° 4, p. 349–358. doi: 10.1002/wcc.179
[8] Brown I. 2020. Snow cover variability in Great Britain during a changing climate, International Journal of Climatology, 75,2, pp. 61-66, https://doi.org/10.1002/wea.3625;
[9] Brown RD. 2000. Northern Hemisphere snow cover variability and change, 1915–97. Journal of Climate 13:2339–2355;
[10] Brown RD, Mote PW. 2009. The response of Northern Hemisphere snow cover to a changing climate. Journal of Climate 22:2124–2145;
[11] Cohen J. 1994. Snow cover and climate. Weather 49:150-156;
[12] Hantel M, Ehrendorfer M, Haslinger A. 2000. Climate sensitivity of snow cover duration in Austria. International Journal of Climatology 20:615–640;
[13] Helliwell RC, Soulsby C, Ferrier RC, Jenkins A, Harriman R. 1998. Influence of snow on the hydrology and hydrochemistry of the Allt a'Mharcaidh, Cairngorm mountains, Scotland. Science of the Total Environment 21: 59-70;
[14] Klein, G., Vitasse, Y., Rixen, C. et al. Shorter snow cover duration since 1970 in the Swiss Alps due to earlier snowmelt more than to later snow onset. Climatic Change 139, 637–649 (2016). https://doi.org/10.1007/s10584-016-1806-y
[15] Oke TR. 1987. Boundary layer climates. 2nd edition. Methuen, London.
[16] Wielke, Lucia-Maria; Haimberger, Leopold; Hantel, Michael. Snow cover duration in Switzerland compared to Austria, Meteorologische Zeitschrift Vol. 13 No. 1 (2004), p. 13 – 17, DOI: 10.1127/0941-2948/2004/0013-0013
[17] Zhang T. 2005. Influence of the seasonal snow cover on the ground thermal regime: An overview. Review of Geophysics 43: RG4002. doi:10.1029/2004RG000157 442
This investigation is part of a project for investigation of the current variability of the snow cover and was funded by the Bulgarian National Science Fund in the call for young and post-doctoral researchers under contract number DM14/1.
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https://doi.org/10.5593/sgem2024/4.1/s19.57
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Proceedings of 24th International Multidisciplinary Scientific GeoConference SGEM 2024
24th International Multidisciplinary Scientific GeoConference SGEM 2024, 1 - 7 July, 2024
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
435-442
1 - 7 July, 2024
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snow, snow cover duration, climate change

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