Articles | Volume 22, issue 5
Research article
 | Highlight paper
15 May 2018
Research article | Highlight paper |  | 15 May 2018

Effects of climatic seasonality on the isotopic composition of evaporating soil waters

Paolo Benettin, Till H. M. Volkmann, Jana von Freyberg, Jay Frentress, Daniele Penna, Todd E. Dawson, and James W. Kirchner

Data sets

Global Network of Isotopes in Precipitation. The GNIP Database IAEA/WMO

Short summary
Evaporation causes the isotopic composition of soil water to become different from that of the original precipitation source. If multiple samples originating from the same source are available, they can be used to reconstruct the original source composition. However, soil water is influenced by seasonal variability in both precipitation sources and evaporation patterns. We show that this variability, if not accounted for, can lead to biased estimates of the precipitation source water.