The characteristic of stable isotope composition of the precipitation for the evaluation of water cycle in transboundary region of Romania, Ukraine and Republic of Moldova
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2022-10-02 21:13
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551.577.13:546.2(498+477+478) (1)
Meteorology (468)
Inorganic chemistry (444)
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BOGDEVICH, Oleg, ENE, Antoaneta, CADOCHNIKOV, Oleg, CULIGHIN, Elena. The characteristic of stable isotope composition of the precipitation for the evaluation of water cycle in transboundary region of Romania, Ukraine and Republic of Moldova. In: Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin: BSB27-MONITOX, 8-11 septembrie 2020, Kavala. Kavala, Greece: International Hellenic University,, 2020, p. 31.
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Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin 2020
Conferința "Environmental Toxicants in Freshwater and Marine Ecosystems in the Black Sea Basin"
Kavala, Grecia, 8-11 septembrie 2020

The characteristic of stable isotope composition of the precipitation for the evaluation of water cycle in transboundary region of Romania, Ukraine and Republic of Moldova

CZU: 551.577.13:546.2(498+477+478)

Pag. 31-31

Bogdevich Oleg1, Ene Antoaneta2, Cadochnikov Oleg1, Culighin Elena1
 
1 Institutul de Geologie şi Seismologie,
2 "Dunarea de Jos" University of Galati
 
Disponibil în IBN: 3 decembrie 2020


Rezumat

The stable isotope technique is a perspective method for the evaluation of the water cycle in the water resource formation. It is important for regions with the treat of the water scarcity. The evaluation of the recharge mechanism of the transboundary groundwater aquifers is a very important in this region. The stable isotope composition of H2 and O18 in the precipitation was analyzed from five meteorological stations from the Republic of Moldova in the period 2007 – 2015 years, which are in GNIP network. The analysis was made in Isotope Hydrology Laboratory of IAEA by stable isotope analyzer Pikarro2140i. The obtained results were compared with neighbouring countries GNIP stations. The importance of stable isotope analysis of all water objects as precipitation, river and groundwater was demonstrated. Spatial and temporal variations of stabe isotopes in hydrological systems are the result of isotope fractionation that accompanies physical, chemical and biological processes taking place in nature. Season variation of stable isotope ration was analysed. The local meteoric water lilines (LMWL) for every stations were compared with global meteoric water line (GMWL). The spatial trend was determined in the stable isotope ration from north to south part of the country. The study of the stable isotope relation between precipitation, rivers and groundwater is important for the water balance evaluation and water management purposes.