Global Frequency Distribution of Exospheric Temperature

Abstract

The distribution of exospheric temperature under all conditions of solar and geomagnetic activity and of spatial location was determined for two different models of the earth's thermosphere and exosphere. The two models were the 1971 Jacchia model and the U.S. Standard Atmosphere Supplements, 1966. Data from the past 12 solar cycles were used to determine the contribution of solar activity to the distributions. The contribution of geomagnetic activity was based on the distribution of geomagnetic activity for solar cycle 20. The spatial contribution was determined by analysis of the diurnal variation in exospheric temperature as given by the particular model. The resulting distributions indicate a mean exospheric temperature of approximately 900 K for either model.

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Document Details

Document Type
Technical Report
Publication Date
Jul 05, 1979
Accession Number
ADA077293

Entities

People

  • Jack W. Slowey

Organizations

  • Smithsonian Astrophysical Observatory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Atmospheres
  • Atmospheric Temperature
  • Computer Programs
  • Cycles
  • Diurnal Variations
  • Equations
  • Exosphere
  • Frequency
  • Intervals
  • Isotherms
  • Magnetic Disturbances
  • Solar Activity
  • Solar Cycle
  • Standards
  • Thermosphere
  • United States

Fields of Study

  • Environmental science

Readers

  • Computational Modeling and Simulation
  • Space/Atmospheric Physics.