Publication

Four years of daily stable water isotope data in stream water and precipitation from three Swiss catchments

Jana Freiin von Freyberg
2021
Datasets

Abstract

This dataset contains four years of daily measurements of the natural isotopic composition (2H, 18O) of precipitation and stream water at the Alp catchment (area 47 km2) in Central Switzerland and two of its tributaries (0.7 km2 and 1.6 km2). In addition, the dataset contains daily measurements of key hydrometeorological variables.

Official source

https://infoscience.epfl.ch/entities/publication/086b5269-c0ac-4cdf-8e6d-ee8fa41552ae

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Jana Freiin von Freyberg
2021
Datasets

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/086b5269-c0ac-4cdf-8e6d-ee8fa41552ae

About this result

Related concepts (15)

Isotopic signature

An isotopic signature (also isotopic fingerprint) is a ratio of non-radiogenic 'stable isotopes', stable radiogenic isotopes, or unstable radioactive isotopes of particular elements in an investigated material. The ratios of isotopes in a sample material are measured by isotope-ratio mass spectrometry against an isotopic reference material. This process is called isotope analysis. The atomic mass of different isotopes affect their chemical kinetic behavior, leading to natural isotope separation processes.

Isotopic labeling

Isotopic labeling (or isotopic labelling) is a technique used to track the passage of an isotope (an atom with a detectable variation in neutron count) through a reaction, metabolic pathway, or cell. The reactant is 'labeled' by replacing specific atoms by their isotope. The reactant is then allowed to undergo the reaction. The position of the isotopes in the products is measured to determine the sequence the isotopic atom followed in the reaction or the cell's metabolic pathway.

Isotope analysis

Isotope analysis is the identification of isotopic signature, abundance of certain stable isotopes of chemical elements within organic and inorganic compounds. Isotopic analysis can be used to understand the flow of energy through a food web, to reconstruct past environmental and climatic conditions, to investigate human and animal diets, for food authentification, and a variety of other physical, geological, palaeontological and chemical processes.

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