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Isotope Tutorial (title provided or enhanced by cataloger)
This isotope tutorial explains what isotopes are and what units are used to express them, how measurements of isotopes are made, and how natural variation in stable isotope abundances come about. The site describes processes affecting isotope ratios such as photosynthesis, evapotranspiration, and respiration; biosphere-atmosphere exchange of isotopes in water and carbon; and how stable isotopes are used to study environmental history. There is information on courses in stable isotopes and the Biosphere - Atmosphere Stable Isotope Network (BASIN) project aimed at improving understanding of carbon cycle processes at the ecosystem, regional, and global scale. Links are provided to analytical labs.
Intended for grade levels:
  • College (13-14)
  • College (15-16)
Type of resource:
  • Text:
    • Ref. material
  • Atmospheric science
  • Biology
  • Chemistry
  • Ecology
  • Environmental science
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright and Other Restrictions Information is Unknown
DLESE Catalog ID: DLESE-000-000-004-175
Resource contact / Creator / Publisher:
Contact: Jim Ehleringer
University of Utah, Department of Biology

Author: Diane Pataki
University of Utah, Department of Biology

Publisher: Global Change and Terrestrial Ecosystem, International Project Office, CSIRO Land and Water