Description:
River ecosystems are dynamic; they profoundly shape and reshape their environments on an ongoing basis. Scientists in a new discipline known as "biogeochemical cycles" study how changes in the chemical and geological state of a body of water affects plants and animals living there, and how life, in turn, influences the chemical and geological makeup of the ecosystem. The aftermath of Hurricane Floyd has provided scientists with the perfect opportunity to test new techniques in this field. NASA's Earth Observatory web site provides a summary of this issue, with links. If the "glossary on" button is selected, key words become hotlinks to definitions.

Organization:
NASA Goddard Space Flight Center (GSFC)

URL:
http://earthobservatory.nasa.gov/Study/FloydSediment/

Contact:
David Herring, dherring@climate.gsfc.nasa.gov, Mailstop 913.0, Building 33, Greenbelt MD 20771; Phone: (202) 286-8955 

Cost:
Free

Education Level:
General

Subject:
Earth System Science
Ecology
Rivers and Streams

Resource Type:
Internet Site

Date Added to teachearth.com:
12/11/00