Application of Stable Isotopes and Tritium in Hydrology

Dear Colleagues,

Studies of groundwater recharge and infiltration conditions, the mechanisms of mass transfer, and mixing of waters with different compositions and ages are among the basic problems of geology and hydrogeology. Isotope hydrology techniques have proved to be effective tools for solving many critical hydrological problems and processes, and they can provide information that could not be obtained by any other conventional means. Isotopes of hydrogen (³H, ²H) and oxygen (¹⁸O) are perfect candidates for groundwater tracers because they are constituent elements of the water molecule. Knowledge on the isotopic composition (δ¹⁸O, δ²H and ³H activity) in surface and groundwater has found wide applications in hydrology, such as determination of mean residence time of water in aquifers, the determination of recharge areas, mixing of surface and groundwater, the interconnections between aquifers, and the origin of groundwater. Contributions related to other isotopes (e.g., ¹⁵N, ³⁴S, and many others), conceptual model development, water resources management on a local to regional scale, as well as papers on water isotopes applied in palaeoclimatic and palaeoenvironmental studies are highly welcome.

Dr. Ines Krajcar Bronić
Dr. Jadranka Barešić
Guest Editors

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