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SNOW BLIZZARDS AND SNOW DRIFTS IN NORTEAST BULGARIA - ASSESSMENT AND RECENT TENDENCIES

Dimitar Nikolov

First published: 2018-06-20https://doi.org/10.5593/sgem2018/4.2/s19.076View metrics

Abstract

Snow blizzards and snow drifts have recently proven as major winter threat for the road traffic, communications and social life in northeast Bulgaria. The geographical location of these regions with respect to the tracks of the winter Mediterranean cyclones and cold advections from north and northeast makes them indeed prone to this risk, but one would like to know if there is a significant rise in their number and severity. The main goal of the current study is exactly the investigation of the contemporary tendencies in the regime of the characteristics of the snow cover in northeast Bulgaria. This includes examination and assessment of the following climatic characteristics of the snow cover and their tendencies: mean, maximal, mean maximal snow cover depth, mean monthly and seasonal number of days with snow cover greater than specific height (15 ? 30 cm) and the character of the snow cover, i.e. the presence of snow drifts. These climatic characteristics have been assessed for a period of more than 50 years (1962-2015) using 36 station in the following administrative districts: Targovishte, Shumen, Silistra, Razgrad, Dobrich and Varna. Spatial attention is paid to the recent snow blizzards cases where the wind conditions have been investigated also. This has been done for the period 1991-2015.

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Publication details

Title
SNOW BLIZZARDS AND SNOW DRIFTS IN NORTEAST BULGARIA - ASSESSMENT AND RECENT TENDENCIES
Authors
Dimitar Nikolov
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies
Publisher
STEF92 Technology
Year
2018
Pages
591-598
SWS Citekey
Nikolov201819591598
ISSN
1314-2704
ISBN
978-619-7408-45-4
Language
en
Publication type
Conference Paper
Keywords
snow blizzardsnow driftssnow cover variabilityclimate change
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