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Drought is a complex weather and climate-related phenomenon with significant ecological and socioeconomic consequences. In light of the increasing severity and frequency of droughts in Europe in recent years, this study focuses on assessing the spatiotemporal evolution of drought in Bulgaria during the period 2014-2022. To achieve this, the Standardized Precipitation Index (SPI) is calculated at different time scales (1, 3, and 6 months) for both the country's territory and individual municipalities using software...

The main goal of the analysis presented in the paper is to contribute to a clearer understanding of climate changes in Bulgaria, assessing the long-term changes in annual characteristics of surface temperature and precipitation in the period 1961-2020 and providing climate projections to the end of the 21st century. During the last decades of the 20th century, a tendency towards warming occurred in Bulgaria. Since the 1990s, only four years have had negative temperature anomalies compared to the reference period 1...

The development of indicator systems for drought identification is part of the Drought Management Plans. The analysis of the correlation between the different indices is an essential part of the indicator systems. That research is part of a task related to the developed at NIMH system (http://hydro.bg) of drought indicators and the development of recommendations for their simultaneous use. For this purpose, the influence of climatic factors on the hydrological cycle components and the role of the characteristics o...

The frequency of extreme meteorological and climatic phenomena in Bulgaria has increased in recent years. Especially since the mid-1990s, a series of disaster meteorological situations have caused serious material damages and human casualties in many regions of Bulgaria. Annual precipitation amounts have increased during the last 10-15 years, mainly due to the contribution of heavy rainfall events. The main objective of present study is seasonal analysis and synoptic classification of extreme precipitation events ...

Spatial distribution and temporal variations of snow cover and snow precipitations carry important information about available water resources, snow load estimations, the plant vegetation period, habitat change and etc., which is crucial for many environmental, ecological, hydrological and technical issues. This study is focused on the tendencies in the regime of the snowfalls and the snow cover in Strandzha region during the period 1961-2017. The monthly values about number of days with snow cover and snow precip...