North-central Ukraine is vulnerable to temperature increases and precipitation pattern changes associated with climate change. With water management becoming increasingly important, information on current water sources and moisture recycling is critically needed. Isotope ratios of oxygen (δ 18O) and hydrogen (δ 2H) in precipitation are sensitive to these variables and allow comparisons across the region. The δ 2H and δ 18O values from collected precipitation in Kyiv and Cherkasy in 2020 and published 3H data for Kyiv from the year 2000 show an influence of the North Atlantic Oscillation (NAO) and provide information about processes affecting precipitation along the storm trajectory. The δ 18O values also show a correlation with temperature, indicating that precipitation patterns may be affected by the rising temperatures in the region, as predicted by recent regional studies using Representative Concentration Pathway scenarios and the global climate model GFDL-ESM2M. When compared to backtracked storm trajectory and NAO data, clear relationships emerged between water isotope ratios, storm paths, and likely moisture recycling. Overall, δ 2H, δ 18O, 3H, and backtracked storm trajectory data provide more regional and local information on water vapour processes, improving climate-change-driven precipitation forecasts in Ukraine.
|Number of pages||22|
|Journal||Isotopes in Environmental and Health Studies|
|State||Published - 2022|
Bibliographical noteFunding Information:
came from a Fulbright Student Research Award to E. Avery. We thank Olena Churyumova for allowing us to set up sampling equipment on her property, Nadiia Bondaruk and Maryna Kornieva for help with collecting samples in Kyiv, Yurii Vikhrenko and Roman Aranchiy for help with collecting samples in Cherkasy, and Jordon Munizzi for data normalization and help with analysis.
© 2022 Informa UK Limited, trading as Taylor & Francis Group.
- North Atlantic Oscillation (NAO)
- climate change
- isotope hydrology
ASJC Scopus subject areas
- Environmental Chemistry
- Environmental Science (all)
- Inorganic Chemistry