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NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Fields of Study
  2. atmospheric sciences
  3. Earth atmosphere
  4. exosphere
  1. Natural Resources, Conservation, Environment
  2. atmospheric sciences
  3. Earth atmosphere
  4. exosphere

Preferred term

exosphere

Type

  • Topic

Definition

  • Information The outermost, or topmost, portion of the atmosphere. Its lower boundary is the critical level of escape, variously estimated at 500 to 1000 kilometers above the Earth's surface.

    Source: NASA Thesaurus

    Type: Concept definition

Broader concept

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In other languages

URI

https://lod.nal.usda.gov/nalt/212238

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RDF/XML TURTLE JSON-LD Created 3/20/14, last modified 1/16/15