Jana von Freyberg

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von Freyberg

First Name

Jana

ORCID

0000-0002-2111-0001

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Publications 1 - 10 of 43

Groundwater recharge predictions in contrasted climate: The effect of model complexity and calibration period on recharge rates
Moeck, Christian; von Freyberg, Jana; Schirmer, Mario (2018)
Environmental Modelling & Software
Ideas and perspectives: Tracing terrestrial ecosystem water fluxes using hydrogen and oxygen stable isotopes - challenges and opportunities from an interdisciplinary perspective
Penna, Daniele; Hopp, Luisa; Scandellari, Francesca; et al. (2018)
Biogeosciences
n this commentary, we summarize and build upon discussions that emerged during the workshop "Isotope-based studies of water partitioning and plant–soil interactions in forested and agricultural environments" held in San Casciano in Val di Pesa, Italy, in September 2017. Quantifying and understanding how water cycles through the Earth's critical zone is important to provide society and policymakers with the scientific background to manage water resources sustainably, especially considering the ever-increasing worldwide concern about water scarcity. Stable isotopes of hydrogen and oxygen in water have proven to be a powerful tool for tracking water fluxes in the critical zone. However, both mechanistic complexities (e.g. mixing and fractionation processes, heterogeneity of natural systems) and methodological issues (e.g. lack of standard protocols to sample specific compartments, such as soil water and xylem water) limit the application of stable water isotopes in critical-zone science. In this commentary, we examine some of the opportunities and critical challenges of isotope-based ecohydrological applications and outline new perspectives focused on interdisciplinary research opportunities for this important tool in water and environmental science.
Spatiotemporal variability in hydrochemistry of shallow groundwater in a small pre-alpine catchment: The importance of landscape elements
Kiewiet, Leonie; von Freyberg, Jana; van Meerveld, Ilja (2019)
Hydrological Processes
Autonomous, real-time monitoring of water quality and isotopic composition in rain- and stream water at a mountain headwater catchment
von Freyberg, Jana; Studer, Björn; Kirchner, James W. (2016)
A lab in the field: real-time measurements of water quality and stable isotopes
von Freyberg, Jana; Kirchner, James W. (2015)
Insights into streamflow generation mechanisms using high-frequency analysis of isotopes and water quality in streamflow and precipitation
von Freyberg, Jana; Kirchner, James W. (2017)
Geophysical Research Abstracts
Effects of climatic seasonality on the isotopic composition of evaporating soil waters
Benettin, Paolo; Volkmann, Till H.M.; von Freyberg, Jana; et al. (2018)
Hydrology and Earth System Sciences
Stable water isotopes are widely used in ecohydrology to trace the transport, storage, and mixing of water on its journey through landscapes and ecosystems. Evaporation leaves a characteristic signature on the isotopic composition of the water that is left behind, such that in dual-isotope space, evaporated waters plot below the local meteoric water line (LMWL) that characterizes precipitation. Soil and xylem water samples can often plot below the LMWL as well, suggesting that they have also been influenced by evaporation. These soil and xylem water samples frequently plot along linear trends in dual-isotope space. These trend lines are often termed "evaporation lines" and their intersection with the LMWL is often interpreted as the isotopic composition of the precipitation source water. Here we use numerical experiments based on established isotope fractionation theory to show that these trend lines are often by-products of the seasonality in evaporative fractionation and in the isotopic composition of precipitation. Thus, they are often not true evaporation lines, and, if interpreted as such, can yield highly biased estimates of the isotopic composition of the source water.
Mixing relationships of young-water fractions and solute concentrations in Swiss rivers – a novel approach to describe catchment hydrological behavior
Kirchner, James W.; von Freyberg, Jana (2016)
Geophysical Research Abstracts
High - frequency analysis of isotopes and water quality in streamflow and precipitation at a snowmelt - dominated headwater catchment
von Freyberg, Jana; Studer, Bjørn; Kirchner, James W. (2017)
Studying catchment storm response using event and pre-event water volumes as fractions of precipitation rather than discharge
von Freyberg, Jana; Studer, Bjørn; Rinderer, Michael; et al. (2018)
Hydrology and Earth System Sciences Discussions

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Jana von Freyberg

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