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Title: Defining Desertification
Url: https://earthobservatory.nasa.gov/features/Desertification
Creator: Riebeek, Holli
Publisher: Goddard Space Flight Center
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.
LC Classification: Geography. Anthropology. Recreation -- Atlases -- By region or country -- Eastern Hemisphere. Eurasia, Africa, etc. -- Africa -- General
Geography. Anthropology. Recreation -- Geography (General) -- Philosophy. Relation to other topics. Methodology -- Special methods -- Remote sensing
Geography. Anthropology. Recreation -- Physical geography -- Geomorphology. Landforms. Terrain -- Other natural landforms -- Deserts. Arid regions
History (General) -- Africa -- History of Africa -- Botswana. Bechuanaland -- Local history and description -- Provinces, regions, etc., A-Z -- Kalahari Desert
GEM Subject: Science -- Ecology
Science -- Earth science
Science -- Instructional issues
Social studies -- Geography
Key Concept: Geography -- Remote sensing
Ecology -- Deserts
Geography -- Desertification
Date Issued: 2010-11-08
Resource Type: Reference Material
Instructional Material
Format: Document -- HTML
Audience: Educator
Learner
Professional/Practitioner
Education Level: High School
Higher Education
Higher Education -- Undergraduate (Lower Division)
Language: English
Access Rights: Free access
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Source: DLESE
Full Record Views: 32
Resource URL Clicks: 12
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