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Climate TimeLine: What is Variability?
The Climate Timeline (CTL) is a tool for examining climate change and variability at different time scales (days, months, decades, centuries). This site defines variability, links to related resources and offers an interactive climatic variance visualization. It is supported by the Cooperative Institute for Research in Environmental Sciences (CIRES), the NOAA Paleoclimatology Program, and the National Geophysical Data Center (NGDC).
Intended for grade levels:
  • High (9-12)
  • College (13-14)
Type of resource:
  • Visual:
    • Illustration - scientific
  • Text:
    • Ref. material
  • Climatology
  • Geological Sciences:
    • Geologic time
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
As required by 17 U.S.C. 403, third parties producing copyrighted works consisting predominantly of the material produced by U.S. government agencies must provide notice with such work(s) identifying the U.S. Government material incorporated and stating that such material is not subject to copyright protection. The information on government web pages is in the public domain unless specifically annotated otherwise (copyright may be held elsewhere) and may therefore be used freely by the public.
DLESE Catalog ID: SERC-NAGT-000-000-000-815
Resource contact / Creator / Publisher:
Contact: Mark McCaffrey
NOAA Paleoclimatology Program

Contact: Dan Kowal
National Geophysical Data Center, NOAA