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Tracking Eddies That Feed the Sea
Vortices of water, called "eddies," form off the northwestern coast of North America in the winter, and are particularly large during El Nino winters. Users can read and view satellite imagery which explains how these eddies carry nutrient-rich water offshore, providing nourishment for phytoplankton, microscopic plants which form the foundation of the marine food chain. This is part of NASA's Earth Observatory, a collection of publications featuring satellite imagery and information about Earth.
Intended for grade levels:
  • High (9-12)
Type of resource:
  • Visual:
    • Imagery - remotely sensed
  • Text:
    • Ref. material
  • Atmospheric science
  • Ecology
  • Ocean Sciences:
    • Physical oceanography
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
NASA materials may not be used to state or imply the endorsement by NASA or by any NASA employee of a commercial product, service or activity, or used in any other manner that might mislead. NASA should be acknowledged as the source of its material. It is unlawful to falsely claim copyright or other rights in NASA material. NASA shall in no way be liable for any costs, expenses, claims or demands arising out of use of NASA's cassettes and photographs by a recipient or a recipient's distributees. NASA personnel are not authorized to sign indemnity or hold harmless statements, releases from copyright infringement, or documents granting exclusive use rights.
DLESE Catalog ID: NASA-Edmall-2400
Resource contact / Creator / Publisher:
Contributor: Yoram Kaufman
NASA Goddard Space Flight Center GSFC