Temporal and lake-specific variations in oxygen and hydrogen stable isotopes in a boreal lake-chain during two hydrologically differing years.

This article discusses a study conducted in Finland on the variations in oxygen and hydrogen stable isotopes in boreal lakes. The study found that the isotope values differed between surface and deeper layers of the lakes during a warm and dry summer, but the variation was lower during a rainy summer. The study also examined the correlation between isotope values and lake area and found a strong correlation. The results suggest the importance of groundwater inflow in boreal lake water budgets. The study provides valuable information for understanding the dynamics of these aquatic systems. Another document discusses the estimation of hydraulic residence time and hydrological conditions of lakes during a dry period. The study period experienced low precipitation and low groundwater levels. The document also examines the seasonal and interannual variation in stable isotope ratios in precipitation and the water balance of the study lakes. The results show that water inflow to the lakes was higher in the rainy year compared to the previous year, and evaporation varied between the lakes. The estimated residence times and evaporation to inflow ratios also differed between the two years. Another document discusses a study conducted in a boreal landscape with numerous lakes connected by streams and rivers. The study examines the variability of isotopic values in the lakes and the role of evaporation in influencing these values. The results show that smaller lakes have isotopic values closer to rain and groundwater, while larger lakes show enrichment of heavier isotopes due to evaporation. The study also discusses the uncertainties in estimating water balances and the importance of understanding water [Extracted from the article]