Type:

Other

Description:

This feature article from the National Aeronautics and Space Administration's Earth Observatory discusses the use of satellite imagery to evaluate desertification which is occurring in the Sahel, a region of central African savannah that forms the boundary between the Sahara Desert to the north and the wetter, more fertile regions to the south. Topics include the use of Very High Resolution Radiometer (VHRR) data, obtained from National Oceanic and Atmospheric Administration (NOAA) meteorological satellites, to develop a vegetation index, and exactly how the term 'desertification' should be defined in order to distinguish temporarily degraded land from that which has permanently lost productivity.

Subjects:

  • Science > Ecology
  • Science > Earth Science
  • Social Studies > Geography
  • Education > General

Education Levels:

  • Grade 1
  • Grade 2
  • Grade 3
  • Grade 4
  • Grade 5
  • Grade 6
  • Grade 7
  • Grade 8
  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12

Keywords:

Informal Education,NSDL_SetSpec_ncs-NSDL-COLLECTION-000-003-112-021,Vocational/Professional Development Education,NSDL,High School,Undergraduate (Lower Division),Ecology, Forestry and Agriculture,Social Sciences,Higher Education,Science -- Ecology,oai:nsdl.org:2200/20110801233034868T,General Public,Science -- Instructional issues,Science -- Earth science,Social studies -- Geography,Education,Geoscience

Language:

English

Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution Non-Commercial Share Alike

Collections:

None
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