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ANALYSIS OF THE TRENDS, HYDROLOGICAL REGIME OF THE COMPLEX DAMS INFLOW AND THE WATER SUPPLY VULNERABILITY ALONG THE BLACK SEA
Abstract
Climate factors are already exerting negative pressure on water resources, society and ecosystems. The analysis of trends and identification of vulnerable water supply areas is related to the River Basin Management Plans. For this end, a methodology for assessment of water resources vulnerability, developed in international projects of the National Institute of Meteorology and Hydrology (NIMH), is adapted. The methodology is further developed by drought risk assessment. The main stages are: 1) Assessment of the climate factors and trends; 2) Evaluation of the trends in water resource alterations, under different scenarios or drought; 3) Developing a calculation scheme of the Water Management System; 4) Assessment of the water consumption and ecological flow; 5) Assessment of vulnerability of water resources and prolonged drought risk assessment. Identification of -critical areas- and the so-called -hot spots-; 6) Analysis of measures and adaptive management. The methodology is applied for Black sea region. In this report the main trends, the evaluated risks and the analyzed influence of climate change and extreme phenomena on water are represented. Emphasis is given to the assessment of the water resources and inflows to the complex and significant dams in the area. Investigations concerning the significance of trends in runoff change using the Mann- Kendall test are carried out. A trend analysis of the groundwater levels reduction according to NIMH operational monitoring data is performed. A new approach for prolonged drought assessment by integrated analysis of the indices from NIMH drought identification system (SPI, SRI and SMI), the indicators used by the Ministry of Environment and Water (reservoirs inflow and levels) and groundwater, is applied. The vulnerable areas are identified - water supply from reservoirs in cases of prolonged drought, some Natura 2000 areas, etc.
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References13
An update of the data used for the inflows in the dams from Appendix 1 of the Water Law for the needs of the annual schedules for the use of their waters, Agreement with the Ministry of Environment and Water, 2015
Bocheva, L., T. Marinova, Ts. Nikolova, Comparative analysis of severe storms, connected with extreme precipitation in Bulgaria (1951-2010), J. of International Scientific Publications: Ecology and Safety, Volume 8, ISSN 1314-723, pp 461-468, 2014
Bojilova, �., River basin modeling under future climate conditions, Danube Conference 26-28, September, 558-569, 2017
Determination of the minimum acceptable flow in the river beds after the complex dams according to the current Water Law, Ministry of Environment and Water, 2022, Project manager I.Ilcheva
Determining the regulatory capabilities of the Yasna polyana reservoir, Agreement with the Ministry of Environment and Water, 2014, Project manager I.Niagolov
Development of rules for management of reservoirs from Annex 1 to the Water Act, Agreement with the MoEW, Ticha and Kamchia dams, 2019 � 2021, O.Santurdjian
Guidelines for the use of SRI, SPI3 and SMI indices synchronously. Development of recommendations for interpretation of indicators for assessment of drought, Agreement with the Ministry of Environment and Water, 2021, Project managers I.Ilcheva and L.Bocheva
Ilcheva, I., A.Yordanova, Kr. Ljubenova, G. Drumeva, Y. Dimitrov, Approach and an Indicator system for prolonged drought identification in Bulgaria, Bul. J. Meteo & Hydro 26/2, 2022
Marinov, Iv., G. Popov, V. Spiridonov, S. Balabanova, T. Lubenov, Changes of the ecological conditions in the watershed of Ticha dam in result of the expected climate change, Forest science, No 1/2, 2014, pp.23-34
Mitigating Vulnerability of Water Resources under Climate Change, Executive Forest Agency, Forest University, Forest Research Institute and NIMH, 2014, http://www.iag.bg/docs/lang/1/cat/5/index
Ninov, Pl., I. Ribarova, Tz. Karagiozova, Using a calibrated hydrological model to develop different climatic scenarios, XXV Conference of the Danube Countries, Hungary, ISBN 978-963-511-151-0, 2011
Spiridonov, V., Balabanova, Sn, Influence of climate change (by 2050) on the intensive rainfall on the territory of Bulgaria, Bul. J. Meteo & Hydro 22/5, pp 26-37, 2017
Stoyanova, V., Balabanova, S., Koshinchanov, G., Yordanova, V., Stoyanova, S.,A combined hydrological and hydraulic model for flood applied to the downstream Kamchia river, SGEM, 22 (3.1), pp 17 � 24, 2022 DOI: 10.5593/sgem2022/3.1/s12.02
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